阅读说明：本技术 一种相控阵干扰机的收发及控制装置 (Transmit-receive and control device of phased array jammer ) 是由 万奇龙 杨俊华 朱琦 于 2021-07-28 设计创作，主要内容包括：本发明公开了一种相控阵干扰机的收发及控制装置,包括：控制模块、本振模块、中频功分模块、收发模块和天线阵；所述控制模块用于根据所述天线阵和所述收发模块的接收信号确定探测目标方向,并根据所述探测目标方向对天线阵内多个天线元的多路干扰发射信号进行相位调制,使得多路干扰发射信号合成空间辐射波束指向探测目标,还用于控制所述本振模块输出本振信号给所述收发模块,以及输出中频信号通过所述中频功分模块传输给所述收发模块。本发明可以提高干扰信号能量的利用率,降低系统功耗,提高工作可靠性,同时可以校准阵列和通道间的相位误差,改善空间辐射功率合成效率。(The invention discloses a receiving and transmitting and control device of a phased array jammer, which comprises: the system comprises a control module, a local oscillator module, an intermediate frequency power division module, a transceiver module and an antenna array; the control module is used for determining a detection target direction according to the received signals of the antenna array and the transceiver module, performing phase modulation on multi-path interference transmitting signals of a plurality of antenna elements in the antenna array according to the detection target direction, enabling the multi-path interference transmitting signals to be synthesized into a space radiation beam pointing to a detection target, controlling the local oscillator module to output local oscillator signals to the transceiver module, and outputting intermediate frequency signals to be transmitted to the transceiver module through the intermediate frequency power dividing module. The invention can improve the utilization rate of interference signal energy, reduce system power consumption, improve working reliability, calibrate phase errors between the array and the channel and improve the space radiation power synthesis efficiency.)

1. A transceiving and control device of a phased array jammer, comprising: the system comprises a control module, an intermediate frequency power division module, a local oscillator module, a transceiver module and an antenna array;

the control module is used for determining a detection target direction according to the antenna array and the receiving signals of the receiving and sending module, controlling the receiving and sending module to perform phase modulation on the multi-channel interference transmitting signals in the receiving and sending module according to the detection target direction, enabling the multi-channel interference transmitting signals to be synthesized into a space radiation beam pointing to a detection target through the antenna array, controlling the local oscillator module to output local oscillator signals to the receiving and sending module, and outputting intermediate frequency signals to be transmitted to the receiving and sending module through the intermediate frequency power dividing module.

2. The apparatus as claimed in claim 1, wherein the transceiver module comprises a plurality of transceiver channels, each of the transceiver channels comprises a digital phase shift unit, and the digital phase shift unit is configured to receive the phase control signal output by the control module and shift the phase of the if transmission signal input to the transceiver channels according to the phase control signal.

3. The transmit-receive and control apparatus of a phased array jammer as claimed in claim 2, wherein each of said transmit-receive channels further comprises a first transmit-receive branch unit, a second transmit-receive branch unit, a quadrature bridge, an absorption switch, a digital controlled attenuator, a radio frequency bi-directional amplifier, a first stage channel switch, a filter bank, a second stage channel switch, a mixer, an intermediate frequency bi-directional amplifier, an intermediate frequency switch, an intermediate frequency filter, an intermediate frequency amplifier;

the first transceiving branch unit and the second transceiving branch are electrically connected with one end of the orthogonal bridge, the absorption switch, the numerical control attenuation, the radio frequency bidirectional amplifier, the first-stage channel switch, the filter bank, the second-stage channel switch, the mixer, the intermediate frequency bidirectional amplifier and the intermediate frequency switch are sequentially cascaded, the second end of the intermediate frequency switch is electrically connected with one end of the intermediate frequency filter, the third end of the intermediate frequency switch is electrically connected with the numerical control phase shifting unit, and one end of the intermediate frequency amplifier is electrically connected with the other end of the intermediate frequency filter.

4. The apparatus as claimed in claim 1 or 2, wherein the antenna array comprises a plurality of antenna elements electrically connected to the transceiver module, and all the antenna elements are located in the same plane to form an antenna array.

5. The apparatus as claimed in claim 2 or 4, wherein the total number of the receiving channels in the receiving/transmitting module is not less than 5, and the number of the antenna elements in the antenna array is the same as the number of the receiving channels in the receiving/transmitting module.

6. The transceiving and control device of claim 1, further comprising a self-test signal output module, wherein the control module is further configured to control the self-test signal output module to output a self-test signal to the transceiving module.

7. The transceiving and control device of a phased array jammer according to claim 1 or 6, wherein the control module comprises a DA conversion circuit, an AD acquisition circuit, a clock circuit, a local oscillation control interface circuit, a transceiving control interface circuit and a signal processing and control circuit;

the first end of the DA conversion circuit is electrically connected with the intermediate frequency power division module in the transceiving module, the second end of the DA conversion circuit is electrically connected with the clock circuit, and the third end of the DA conversion circuit is electrically connected with the signal processing and control circuit;

the first end of the AD acquisition circuit is electrically connected with the transceiver module, the second end of the AD acquisition circuit is electrically connected with the clock circuit, and the third end of the AD acquisition circuit is electrically connected with the signal processing and control circuit;

the first end of the transceiving control interface circuit is electrically connected with the transceiving module, and the second end of the transceiving control interface circuit is electrically connected with the signal processing and control circuit;

the signal processing and control circuit comprises a high-speed processor and a high-speed RAM memory, and forms a digital radio frequency memory together with the DA conversion circuit and the AD acquisition circuit, so that the control module has a digital radio frequency storage function;

the first end of the local oscillation control interface circuit is electrically connected with the local oscillation module and the self-checking signal output module, and the second end of the local oscillation control interface circuit is electrically connected with the signal processing and control circuit.

8. The apparatus according to claim 1, wherein the local oscillator module comprises a local oscillator source, a local oscillator switch circuit, and a local oscillator power divider circuit;

the local vibration source comprises a plurality of output interfaces and a control interface, and is electrically connected with the control module through the control interface and the local vibration switch circuit through the output interfaces;

the local oscillator switch circuit comprises a plurality of input interfaces, a plurality of output interfaces and a control interface, and is electrically connected with the control module through the control interface and the local oscillator power dividing circuit through the output interface;

the local oscillator power dividing circuit comprises a plurality of input interfaces and a plurality of output interfaces, and the local oscillator power dividing circuit is electrically connected with the transceiver module through the output interfaces.

9. The apparatus according to claim 8, wherein the phased array jammer has two operating modes, a single local oscillator and a plurality of local oscillators, the local oscillator has a plurality of independent local oscillator signals with different frequencies, when the local oscillator operates in the single local oscillator mode, the plurality of output ports of the local oscillator switch circuit outputs a same local oscillator signal, all the transceiving channels in the transceiving module use the local oscillator signal, when the local oscillator operates in the plurality of local oscillator modes, the plurality of output ports of the local oscillator switch circuit output a plurality of different local oscillator signals, all the transceiving channels in the transceiving module are divided into a plurality of groups, and each group uses one local oscillator signal of the plurality of local oscillator signals.

10. The apparatus according to claim 1, wherein a first end of the intermediate frequency power dividing module is electrically connected to the control module, a second end of the intermediate frequency power dividing module is electrically connected to each of the transceiving channels, the intermediate frequency power dividing module includes a band-pass filter, an amplifier and a one-to-two power divider group, and the band-pass filter, the amplifier and the one-to-two power divider group are sequentially cascaded.

Technical Field

The invention belongs to the technical field of radio, and particularly relates to a transmitting, receiving and controlling device of a phased array interference machine.

Background

In the process of using the aircraft, the ship, the combat tank and the like in battle, the threat of reconnaissance of enemy radar is often met, the electronic interference of the enemy radar is implemented by using an interference machine, and the method is a common and very effective defense means.

In order to realize interference on the radar in a large airspace range, a general jammer generally adopts a wide beam antenna to receive signals and transmit interference. The scheme has the advantages of simple structure and small design and production difficulty. The main defects are that the gain of the interference antenna is low, the energy utilization efficiency of interference signals is not high, the jammer does not have the space selectivity of a target, the transmitted interference signals are distributed in a larger airspace, and the interference energy really entering a target radar receiver is little. In order to improve the suppression ratio and the interference effect, the transmitting power must be increased, thereby reducing the synthesis efficiency of the power amplifier, greatly improving the power consumption requirement, and reducing the reliability and the cost performance of the system.

Disclosure of Invention

In view of at least one of the defects or the improvement requirements of the prior art, the invention provides a transceiving and control device of a phased array jammer, which can improve the utilization rate of interference signal energy, reduce system power consumption, improve working reliability, calibrate array errors and channel errors, and improve the space power synthesis efficiency.

To achieve the above object, according to a first aspect of the present invention, there is provided a transmitting/receiving control apparatus for a phased array jammer, comprising: the system comprises a control module, an intermediate frequency power division module, a local oscillator module, a transceiver module and an antenna array;

the control module is used for determining a detection target direction according to the antenna array and the receiving signals of the receiving and sending module, controlling the receiving and sending module to perform phase modulation on the multi-channel interference transmitting signals in the receiving and sending module according to the detection target direction, enabling the multi-channel interference transmitting signals to be synthesized into a space radiation beam pointing to a detection target through the antenna array, controlling the local oscillator module to output local oscillator signals to the receiving and sending module, and outputting intermediate frequency signals to be transmitted to the receiving and sending module through the intermediate frequency power dividing module.

Preferably, the transceiver module includes a plurality of transceiver channels, each of the transceiver channels includes a numerical control phase shift unit, and the numerical control phase shift unit is configured to receive the phase control signal output by the control module and shift the phase of the intermediate frequency transmission signal input to the transceiver channel according to the phase control signal;

preferably, each of the transceiving channels further includes a first transceiving branch unit, a second transceiving branch unit, an orthogonal bridge, an absorption switch, a digital controlled attenuator, a radio frequency bidirectional amplifier, a first-stage channel switch, a filter bank, a second-stage channel switch, a mixer, an intermediate frequency bidirectional amplifier, an intermediate frequency switch, an intermediate frequency filter, and an intermediate frequency amplifier;

the first transceiving branch unit and the second transceiving branch are electrically connected with one end of the orthogonal bridge, the absorption switch, the numerical control attenuation, the radio frequency bidirectional amplifier, the first-stage channel switch, the filter bank, the second-stage channel switch, the mixer, the intermediate frequency bidirectional amplifier and the intermediate frequency switch are sequentially cascaded, the second end of the intermediate frequency switch is electrically connected with one end of the intermediate frequency filter, the third end of the intermediate frequency switch is electrically connected with the numerical control phase shifting unit, and one end of the intermediate frequency amplifier is electrically connected with the other end of the intermediate frequency filter.

Preferably, the antenna array comprises a plurality of antenna elements electrically connected to the transceiver module, and all the antenna elements are located on the same plane to form an antenna array.

Preferably, the total number of the receiving and transmitting channels in the transceiver module is not less than 5, and the number of the antenna elements in the antenna array is the same as the number of the receiving and transmitting channels in the transceiver module.

Preferably, the transceiver further comprises a self-checking signal output module, and the control module is further configured to control the self-checking signal output module to output a self-checking signal to the transceiver module.

Preferably, the control module comprises a DA conversion circuit, an AD acquisition circuit, a clock circuit, a local oscillation control interface circuit, a transceiving control interface circuit, and a signal processing and control circuit;

the first end of the DA conversion circuit is electrically connected with the intermediate frequency power division module in the transceiving module, the second end of the DA conversion circuit is electrically connected with the clock circuit, and the third end of the DA conversion circuit is electrically connected with the signal processing and control circuit;

the first end of the AD acquisition circuit is electrically connected with the transceiver module, the second end of the AD acquisition circuit is electrically connected with the clock circuit, and the third end of the AD acquisition circuit is electrically connected with the signal processing and control circuit;

the first end of the transceiving control interface circuit is electrically connected with the transceiving module, and the second end of the transceiving control interface circuit is electrically connected with the signal processing and control circuit;

the signal processing and control circuit comprises a high-speed processor and a high-speed RAM memory, and forms a digital radio frequency memory together with the DA conversion circuit and the AD acquisition circuit, so that the control module has a digital radio frequency storage function;

the first end of the local oscillation control interface circuit is electrically connected with the local oscillation module and the self-checking signal output module, and the second end of the local oscillation control interface circuit is electrically connected with the signal processing and control circuit.

Preferably, the local oscillation module includes a local oscillation source, a local oscillation switch circuit, and a local oscillation power dividing circuit;

the local vibration source comprises a plurality of output interfaces and a control interface, and is electrically connected with the control module through the control interface and the local vibration switch circuit through the output interfaces;

the local oscillator switch circuit comprises a plurality of input interfaces, a plurality of output interfaces and a control interface, and is electrically connected with the control module through the control interface and the local oscillator power dividing circuit through the output interface;

the local oscillator power dividing circuit comprises a plurality of input interfaces and a plurality of output interfaces, and the local oscillator power dividing circuit is electrically connected with the transceiver module through the output interfaces.

Preferably, the receiving/transmitting and controlling device of the phased array jammer has two working modes of a single local oscillator and multiple local oscillators, the local oscillator source has a plurality of independent local oscillator signals with different frequencies, when the local oscillator source works in the single local oscillator mode, a plurality of output ports of the local oscillator switch circuit output the same local oscillator signal, all receiving/transmitting channels in the receiving/transmitting module use the local oscillator signal, when the local oscillator source works in the multiple local oscillator modes, a plurality of output ports of the local oscillator switch circuit output different local oscillator signals, all receiving/transmitting channels in the receiving/transmitting module are divided into multiple groups, and each group uses one local oscillator signal in the plurality of local oscillator signals.

Preferably, the first end of the intermediate frequency power division module is electrically connected to the control module, the second end of the intermediate frequency power division module is electrically connected to each of the transceiver channels, the intermediate frequency power division module includes a band-pass filter, an amplifier and a one-to-two power divider set, and the band-pass filter, the amplifier and the one-to-two power divider set are sequentially cascaded.

In general, compared with the prior art, the invention has the following beneficial effects: the system is based on a phased array interference system formed by digital beams, adopts a plurality of digital receiving and transmitting channels, passively detects the direction of a radar signal in real time through an antenna array during reconnaissance and receiving, performs phase modulation on a plurality of paths of interference signals according to the direction detection result, and controls a transmitting signal array to synthesize beams to point to a target. The invention obviously improves the utilization rate of interference signal energy by utilizing an advanced phased array scheme, reduces the system power consumption and improves the working reliability; meanwhile, by using the scheme of digital beam forming, array errors and channel errors can be accurately calibrated, the space power forming efficiency is improved, one antenna element radiation signal is regarded as one beam, and theoretically, the forming power of N beams can reach N of the radiation power of a single beam²And (4) doubling.

Drawings

Fig. 1 is a schematic circuit diagram of a transmitting/receiving and controlling apparatus of a phased array jammer according to an embodiment of the present invention;

FIG. 2 is a circuit diagram of a transceiving channel according to another embodiment of the present invention;

fig. 3 is a circuit schematic of a transmitting/receiving and control apparatus of a phased array jammer according to another embodiment of the present invention;

FIG. 4 is a circuit diagram of a transceiving channel according to another embodiment of the present invention;

FIG. 5 is a circuit diagram of a self-test power divider circuit according to another embodiment of the present invention;

fig. 6 is a circuit schematic diagram of a local oscillator switch circuit according to another embodiment of the present invention;

fig. 7 is a circuit schematic diagram of a local oscillator power dividing circuit according to another embodiment of the present invention;

fig. 8 is a circuit diagram of an if power dividing module according to another embodiment of the present invention;

reference numerals: 1-an antenna element; 2-a transmit-receive channel; 3-a self-test source; 4-self-checking switch; 5-self-checking power dividing circuit; 6-local vibration source; 7-local oscillator switch circuit; 8-local oscillator power dividing circuit; 9-local oscillation control interface circuit; 10-intermediate frequency power dividing module; an 11-DA conversion circuit; 12-a transmit receive control interface circuit; 13-a clock circuit; 14-a dual channel AD acquisition circuit; 15-signal processing and control circuit; 16-power management and interface circuitry; 17-single pole double throw radio frequency switch; 18-power divider; 19-single pole double throw radio frequency switch; 20-a filter; 21-a power amplifier; 22-a driver amplifier; 23-a low noise amplifier; 24-quadrature bridge; 25-absorption single-pole double-throw radio frequency switch; 26-a numerically controlled attenuator; 27-a radio frequency bi-directional amplifier; 28-single pole eight throw radio frequency switch; 29-36-band pass filter; 37-a mixer; 38-intermediate frequency bi-directional amplifier; 39-single pole double throw intermediate frequency switch; 40-an intermediate frequency filter; 41-numerical control phase shifter; 42-an intermediate frequency amplifier; 43-a control circuit; 44-a low noise amplifier; 45-power divider; 46-single pole four throw radio frequency switch; 47-single pole single throw radio frequency switch; 48-power divider; 49-single pole double throw radio frequency switch; 50-low noise amplifier 51-power divider; 52-intermediate frequency amplifier; 53-intermediate frequency band pass filter; 54-power divider.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, a transmitting/receiving and control apparatus of a phased array jammer according to an embodiment of the present invention includes: the system comprises a control module, a local oscillator module, an intermediate frequency power division module, a transceiving module and an antenna array.

The control module is used for determining a detection target direction according to the received signals of the antenna array and the transceiver module, controlling the transceiver module to perform phase modulation on the multi-channel interference transmitting signals in the transceiver module according to the detection target direction, enabling the multi-channel interference transmitting signals to be synthesized into a space radiation beam pointing to a detection target through the antenna array, controlling the local oscillator module to output local oscillator signals to the transceiver module, and outputting intermediate frequency signals to be transmitted to the transceiver module through the intermediate frequency power dividing module.

In other words, the invention adopts the antenna array and the transceiver module to receive the detection signals, because the positions of different antenna elements in the antenna array relative to the detection target are different, the phase difference exists between the received signals of different antenna elements, the control module can calculate and determine the direction of the detection target through the phase difference after the amplification processing of the transceiver module, after the direction of the detection target is determined, the control module outputs a phase-shifting control signal to the transceiver module to perform phase modulation on interference emission signals of multiple antenna elements in the antenna array, so that the multiple interference emission signal arrays of multiple antenna elements finally synthesize a space radiation beam pointing to the detection target.

Furthermore, the transceiver module includes a plurality of transceiver channels, each of the transceiver channels includes a numerical control phase shift unit, and the numerical control phase shift unit is configured to receive the phase control signal output by the control module and shift the phase of the intermediate frequency transmission signal input to the transceiver channel according to the phase control signal. Due to the adoption of a plurality of receiving and transmitting channels, the local oscillation signals and the intermediate frequency signals need to be uniformly provided for each receiving and transmitting channel respectively, so that the amplitude-phase consistency of the signals transmitted by each receiving and transmitting channel is improved.

Furthermore, the first end of the intermediate frequency power division module is electrically connected with the control module, the second end of the intermediate frequency power division module is electrically connected with the transceiving channel, the intermediate frequency power division module comprises a band-pass filter, an amplifier and a one-to-two power division group, and the band-pass filter, the amplifier and the one-to-two power division group are sequentially cascaded.

Furthermore, the antenna array is provided with a plurality of antenna elements, the total number of the antenna elements is not less than 5, so that the ambiguity of direction finding can be avoided, the direction finding accuracy is improved, and all the antenna elements are required to be positioned on the same plane to form the antenna array for use.

Further, the number of the transceiving channels is equal to the number of the antenna elements.

Furthermore, the transceiving and control device of the phased array jammer further comprises a self-checking signal output module, and the control module is further used for controlling the self-checking signal output module to be used for outputting self-checking signals to the plurality of transceiving channels.

A preferred implementation of each module is described in detail below.

Furthermore, the control module comprises a DA conversion circuit, an AD acquisition circuit, a clock circuit, a local oscillation control interface circuit, a transceiving control interface circuit, and a signal processing and control circuit. The first end of the DA conversion circuit is electrically connected with the intermediate frequency power division module in the transceiving module, the second end of the DA conversion circuit is electrically connected with the clock circuit, and the third end of the DA conversion circuit is electrically connected with the signal processing and control circuit; the first end of the AD acquisition circuit is electrically connected with the transceiver module, the second end of the AD acquisition circuit is electrically connected with the clock circuit, and the third end of the AD acquisition circuit is electrically connected with the signal processing and control circuit; the first end of the transceiving control interface circuit is electrically connected with the transceiving module, and the second end of the transceiving control interface circuit is electrically connected with the signal processing and control circuit; the first end of the local oscillation control interface circuit is electrically connected with the local oscillation module and the self-checking signal output module, and the second end of the local oscillation control interface circuit is electrically connected with the signal processing and control circuit; the signal processing and control circuit comprises a high-speed processor and a high-speed RAM memory, and forms a digital radio frequency memory DRFM together with the DA conversion circuit and the AD acquisition circuit, so that the control module has a digital radio frequency storage function;

further, the local oscillation module comprises a local oscillation source, a local oscillation switch circuit and a local oscillation power dividing circuit; the local vibration source comprises a plurality of output interfaces and a control interface, and is electrically connected with the control module through the control interface and the local vibration switch circuit through the output interfaces; the local oscillator switch circuit comprises a plurality of input interfaces, a plurality of output interfaces and a control interface, and is electrically connected with the control module through the control interface and the local oscillator power dividing circuit through the output interface; the local oscillator power dividing circuit comprises a plurality of input interfaces and a plurality of output interfaces, and the local oscillator power dividing circuit is electrically connected with the transceiver module through the output interfaces.

Further, the self-checking signal output module comprises a self-checking source, a self-checking switch circuit and a self-checking power dividing circuit.

The number of the antenna elements in the antenna array is recorded as N, the transceiving and control device of the phased array interference machine is provided with the same N antenna elements, N transceiving channels and N AD acquisition circuits, and N is not less than 5.

Specifically, the transceiving channel is provided with two radio frequency transceiving interfaces, a self-checking input interface, a local oscillator input interface, an intermediate frequency output interface, an intermediate frequency input interface and a control interface, and the control interface is connected with the signal processing and control circuit through a transceiving control interface circuit.

The antenna element is provided with two radio frequency interfaces which are respectively connected with the two radio frequency transceiving interfaces of the transceiving channel.

The self-checking source is provided with a control interface and an output interface, the control interface is connected with the signal processing and control circuit through a local oscillation control interface circuit, and the output interface is connected with an input interface of the self-checking switch; the self-checking switch is provided with an input interface, an output interface and a control interface, the output interface is connected with the input interface of the self-checking power dividing circuit, and the control interface is connected with the signal processing and control circuit through the local oscillation control interface circuit; the self-checking power dividing circuit is provided with an input interface and N output interfaces, wherein the N output interfaces are identical and are respectively connected with the self-checking input interfaces of the N transceiving channels.

The local oscillation source is provided with M output interfaces and a control interface, and the control interface is connected with the signal processing and controlling circuit through a local oscillation control interface circuit; the local oscillation switch circuit is provided with M input interfaces, two output interfaces and a control interface, wherein the input interfaces are respectively correspondingly connected with the M output interfaces of the local oscillation source, the two output interfaces are correspondingly connected with the two input interfaces of the local oscillation power dividing circuit, and the control interface is connected with the signal processing and control circuit through the local oscillation control interface circuit; the local oscillator power dividing circuit is provided with two input interfaces and N output interfaces, and the N output interfaces are correspondingly connected with the local oscillator input interfaces of the N receiving and transmitting channels respectively.

The intermediate frequency power dividing module is provided with an input interface and N output interfaces, the input interface is connected with a signal output interface of the DA conversion circuit, and the N output interfaces are respectively connected with intermediate frequency input interfaces of the N transceiving channels.

The DA conversion circuit is provided with a signal output interface, a clock interface and a control interface, and the control interface is connected with the signal processing and control circuit.

The AD acquisition circuit is provided with a signal input interface, a clock interface and a control interface, the control interface is connected with the signal processing and control circuit, and the signal input interface is connected with the intermediate frequency output interface corresponding to the transceiving channel.

The clock circuit is provided with a control interface and N +1 signal output interfaces, the control interface is connected with the signal processing and control circuit and is respectively connected with the clock interfaces of the N AD acquisition circuits and the clock interface of the DA conversion circuit.

The signal processing and control circuit contains a high-speed processor and a high-speed RAM memory, and forms a Digital Radio Frequency Memory (DRFM) together with the DA conversion circuit and the AD acquisition circuit, so that the control module has a digital radio frequency memory function.

The power management interface circuit is connected with an external system, can be transferred to each functional unit through the signal processing and control circuit to provide working power supply, and can also be directly connected with each functional unit to provide working power supply.

As shown in fig. 2, the transceiving channel is mainly formed by cascading a power divider, a first transceiving branch unit, a second transceiving branch unit, an orthogonal bridge, an absorption switch, a digital attenuation, a radio frequency bidirectional amplifier, a first-stage channel switch, a filter bank, a second-stage channel switch, a mixer, an intermediate frequency bidirectional amplifier, an intermediate frequency switch, an intermediate frequency filter, an intermediate frequency amplifier, and a digital phase shifter, and the working state of the transceiving channel is uniformly controlled by an input signal of a control circuit.

The total ends of the power divider are connected with external self-checking input signals, and two branch ends are connected with one branch end of the self-checking switch in the two receiving and transmitting branch units.

First receiving and dispatching branch road unit and second receiving and dispatching branch road unit circuit structure are the same, every receiving and dispatching branch road unit is by first grade receiving and dispatching switch, power amplifier circuit, the self-checking switch, wave filter, LNA (low noise amplifier), the cascade of second grade receiving and dispatching switch, first grade receiving and dispatching switch common port links to each other with external antenna, a branch road end links to each other with the power amplifier circuit output, another branch road end links to each other with a branch road end of the surplus of self-checking switch, the self-checking switch common port passes through the input of wave filter connection LNA, LNA output and power amplifier circuit's input link to each other with two branches of second grade receiving and dispatching switch.

The common end of the second-stage receiving and transmitting switch of the two receiving and transmitting branch units is connected with the two branch ends of the absorption switch through an orthogonal bridge, and the common end of the absorption switch is connected with the common end of the first-stage channel switch through a numerical control attenuator and a radio frequency bidirectional amplifier.

The first-stage channel switch and the second-stage channel switch are both single-pole L-throw radio frequency switches and are provided with a public end and L branch ends, L band-pass filters are arranged in the filter bank and divide a system working frequency band into L sections, each filter represents a channel, the pass bands are different, and the two ends of each filter are respectively connected with the branch ends of the first-stage channel switch and the second-stage channel switch in a one-to-one correspondence mode.

The mixer is provided with three ports, namely a radio frequency end, an intermediate frequency end and a local oscillator end, the radio frequency end is connected with the common end of the second-stage channel switch, the intermediate frequency end is connected with the common end of the intermediate frequency switch through an intermediate frequency bidirectional amplifier, and the local oscillator end is connected with an external local oscillator input signal.

One branch end of the intermediate frequency switch is connected with the input end of the intermediate frequency amplifier through the intermediate frequency filter, the output end of the intermediate frequency amplifier is connected with the intermediate frequency signal output, the other branch end of the intermediate frequency switch is connected with the output end of the numerical control phase shifter, and the input end of the numerical control phase shifter is connected with the intermediate frequency signal output.

Furthermore, functional circuits such as an amplifier, a filter, a power divider and the like can be added in the transceiving channel link according to needs.

Furthermore, N antenna elements adopt a dual-polarization orthogonal form, the two polarization forms correspond to two radio frequency interfaces of the N antenna elements, and all the antenna elements are positioned on the same plane to form an antenna array for use.

Furthermore, the working frequency range of the self-detection source, the self-detection switch and the self-detection power divider circuit is not less than the working bandwidth of the transceiving channel, the output signal frequency of the self-detection source can be set according to requirements, and the self-detection power divider circuit is formed by combining and cascading a radio frequency amplifier and a plurality of one-to-two power dividers.

Furthermore, the local oscillation source is internally provided with M paths of independent local oscillation signals with different frequencies, the local oscillation signals correspond to the M output interfaces one by one, and the frequency of the local oscillation source can be set as required.

Further, the local oscillator switch circuit and the local oscillator power dividing circuit cover the frequency of all local oscillator signals in the fixed local oscillator source within the working frequency range, and the local oscillator power dividing circuit is formed by combining and cascading a plurality of one-to-two power dividers.

Furthermore, the local oscillation circuit has two working modes of a single local oscillation and a double local oscillation, when the local oscillation circuit works in the single local oscillation mode, two output ports of the local oscillation switch circuit output the same local oscillation signal, all the receiving and transmitting channels use the local oscillation signal, when the local oscillation circuit works in the double local oscillation mode, two output ports of the local oscillation switch circuit output two different local oscillation signals, and the N receiving and transmitting channels are divided into two groups to use different local oscillation signals according to the design of the output ports of the local oscillation power dividing circuit; by expanding the output port of the local oscillator switch circuit and the input port of the local oscillator power amplifier circuit, the receiving, transmitting and controlling device of the phased array jammer can further expand a plurality of local oscillator working modes.

Furthermore, the intermediate frequency power dividing module is formed by combining and cascading a band-pass filter, an amplifier and a plurality of one-to-two power dividers, and the N output ports have good phase consistency.

Furthermore, the N AD acquisition circuits can be N single-channel AD conversion circuits and also can be N/2 double-channel AD conversion circuits, and at the moment, the output interfaces of the clock circuit are correspondingly reduced by N/2.

Fig. 3 is a transmitting/receiving and control device of a phased array jammer according to another embodiment of the present invention, which includes 8 identical antenna elements, 8 transmitting/receiving channels, and 4 two-channel AD acquisition circuits. Specifically, the system comprises an antenna element 1, a transceiving channel 2, a transceiving control interface circuit 12, a self-checking source 3, a self-checking switch 4, a self-checking power dividing circuit 5, a local oscillation source 6, a local oscillation switch circuit 7, a local oscillation power dividing circuit 8, a local oscillation control interface circuit 9, an intermediate frequency power dividing module 10, a DA conversion circuit 11, a dual-channel AD acquisition circuit 14, a clock circuit 13, a signal processing and control circuit 15, and a power management and interface circuit 16.

Fig. 4 shows a transceiving channel according to another embodiment of the present invention. The power divider comprises a power divider 18, a first transceiving branch unit, a second transceiving branch unit, an orthogonal bridge 24, an absorption type single-pole double-throw radio frequency switch 25, a radio frequency bidirectional amplifier 27, a single-pole eight-throw radio frequency switch 28, band-pass filters 29-36, a mixer 37, an intermediate frequency bidirectional amplifier 38, a single-pole double-throw intermediate frequency switch 39, an intermediate frequency filter 40, an intermediate frequency amplifier 42 and a numerical control phase shifter 41, wherein the working states of transceiving channels are uniformly controlled by input signals of a control circuit 43.

The total end of the power divider 18 is connected with an external self-checking input signal, and two branch ends are connected with one branch end of a single-pole double-throw radio frequency switch 19 in the two transceiving branch units.

More specifically, the circuit structure of the first transceiving branch unit and the second transceiving branch unit are the same, and each transceiving branch unit consists of a first-stage single-pole double-throw radio frequency switch 17, a power amplifier 21, a driving amplifier 22, a single-pole double-throw radio frequency switch 19, the filter 20, the low noise amplifier 23 and the second stage single-pole double-throw radio frequency switch 17 are cascaded, the common end of the first stage single-pole double-throw radio frequency switch 17 is connected with the external antenna element 1, one branch end is connected with the output end of the power amplifier 21, the other branch end is connected with the rest branch end of the single-pole double-throw radio frequency switch 19, the common end of the single-pole double-throw radio frequency switch 19 is connected with the input end of the low noise amplifier 23 through the filter 20, the output end of the low noise amplifier 23 and the input end of the driving amplifier 22 are connected with two branch ends of the second stage single-pole double-throw radio frequency switch 17, and the output end of the driving amplifier 22 is connected with the input end of the power amplifier 21.

The common end of the second-stage single-pole double-throw radio frequency switch 17 of the two transceiving branch units is connected with the two branch ends of the absorption type single-pole double-throw radio frequency switch 25 through an orthogonal bridge 24, and the common end of the absorption type single-pole double-throw radio frequency switch 25 is connected with the common end of the first-stage single-pole eight-throw radio frequency switch 28 through a numerical control attenuator 26 and a radio frequency bidirectional amplifier 27.

The single-pole eight-throw radio frequency switch 28 is provided with a public end and 8 branch ends, 8 band-pass filters 29-36 with different pass bands divide a system working frequency band into 8 sections, each filter represents a channel, the pass bands are different, and two ends of each filter 29-36 are respectively connected with the branch ends of the two-stage single-pole eight-throw radio frequency switch 28 in a one-to-one correspondence mode.

The mixer 37 has three ports, i.e., a radio frequency end, an intermediate frequency end and a local oscillator end, the radio frequency end is connected to the common end of the second stage single-pole eight-throw radio frequency switch 28, the intermediate frequency end is connected to the common end of the single-pole double-throw intermediate frequency switch 39 through the intermediate frequency bidirectional amplifier 38, and the local oscillator end is connected to an external local oscillator input signal.

One branch end of the single-pole double-throw intermediate frequency switch 39 is connected with the input end of a first intermediate frequency amplifier 42 through an intermediate frequency filter 40, the output end of the first intermediate frequency amplifier 42 is connected with intermediate frequency signal output, the other branch end of the single-pole double-throw intermediate frequency switch 39 is connected with the output end of a numerical control phase shifter 41, the input end of the numerical control phase shifter 41 is connected with the output end of a second intermediate frequency amplifier 42, and the signal input end of the second intermediate frequency amplifier 42 is connected with external intermediate frequency signal input.

Furthermore, the antenna element 1 adopts a dual-linear polarization orthogonal form, so that the jammer has a polarization self-adaption function, two orthogonal linear polarizations can synthesize circular polarization during transmission, the two polarization forms correspond to two radio frequency interfaces of the jammer, and 8 antenna elements are positioned on the same circular plane to form an antenna array for use.

The working frequency ranges of the self-checking source 3, the self-checking switch 4 and the self-checking power distribution circuit 5 are not less than the working bandwidth of the transceiving channel 2, and the frequency of the output signal of the self-checking source 3 can be set as required.

Fig. 5 is a circuit diagram of a self-checking power divider circuit according to another embodiment of the invention. The self-checking power dividing circuit 5 comprises a low-noise amplifier 44 and 7 power dividers, the input end of the low-noise power divider 44 is connected with an external self-checking source, the output end of the low-noise power divider 44 is connected with the common end of a first power divider 45, two branch ends of the first power divider 45 are connected with the common ends of a second power divider 45 and a third power divider 45, two branch ends of the second power divider 45 are connected with the common ends of a fourth power divider 45 and a fifth power divider 45, the third power divider 45 is connected with the common ends of a sixth power divider 45 and a seventh power divider 45, and 8 branch ends of the fourth power divider 45 to the seventh power divider 45 are correspondingly connected with self-checking input interfaces of external 8 transceiving channels 2.

More specifically, the local oscillation source 6 has 5 paths of independent local oscillation signals with different frequencies, which correspond to the 5 output interfaces one by one, and the frequency of each local oscillation signal can be set as required.

Fig. 6 is a circuit diagram of a local oscillation switching circuit according to another embodiment of the present invention. The local oscillation switch circuit 7 comprises a single-pole four-throw radio frequency switch 46, a single-pole single-throw radio frequency switch 47, a power divider 48, a single-pole double-throw radio frequency switch 49 and a low noise amplifier 50. Four branch ends of the single-pole four-throw radio frequency switch 46 are correspondingly connected with four local oscillation signals of an external local oscillation source 6, the common end is connected with the common end of the power divider 48, the input end of the first single-pole single-throw radio frequency switch 47 is connected with the fifth local oscillation signal of the external local oscillation source, the output end of the first single-pole single-throw radio frequency switch is connected with one branch end of the single-pole double-throw radio frequency switch 49, the other branch end of the single-pole double-throw radio frequency switch 49 is connected with one branch end of the power divider 48, the common end of the first single-pole single-throw radio frequency switch is connected with the input end of the first low-noise amplifier 50, the other branch end of the power divider 48 is connected with the input end of the second low-noise amplifier 50 through the second single-pole single-throw radio frequency switch 47, and the output ends of the two low-noise amplifiers 50 are connected with two input ends of the external local oscillation power divider 8.

Further, by switching the selection state of the local oscillation switch circuit 7, the system has two working modes of a single local oscillation and a double local oscillation, when the system works in the single local oscillation mode, one branch end of the power divider 48 is conducted with the input end of the first low noise amplifier 50 through the single-pole double-throw radio frequency switch 49, at this time, two output ports of the local oscillation switch circuit 7 output the same local oscillation signal, and all the transceiving channels 2 use the local oscillation signal; when the system works in the double-local-oscillator mode, the output end of the first single-pole single-throw radio frequency switch 47 is conducted with the input end of the first low-noise amplifier 50 through the single-pole double-throw radio frequency switch 49, two output ports of the local-oscillator switch circuit 7 output two different local-oscillator signals at the moment, and 8 receiving and transmitting channels are equally divided into two groups according to the design of the output port of the local-oscillator power dividing circuit 8 to use different local-oscillator signals, so that the system can implement interference aiming at two radar targets in different directions at the same time.

Fig. 7 is a circuit schematic diagram of a local oscillator power dividing circuit according to another embodiment of the present invention. The local power dividing circuit 8 includes 6 power dividers 51. The common end of the first power divider 51 and the common end of the second power divider 51 are connected to two output ends of the external local oscillator switch circuit 7, two branch ends of the first power divider 51 are connected to the common end of the third power divider 51 and the common end of the fourth power divider 51, the second power divider 51 is connected to the common end of the fifth power divider 51 and the common end of the sixth power divider 51, and 8 branch ends of the third power divider 51 to the sixth power divider 51 are correspondingly connected to local oscillator input interfaces of external 8 transceiving channels 2.

Fig. 8 is a circuit diagram of an if power dividing module according to another embodiment of the present invention. The if power dividing module 10, including the if band pass filter 53, the if amplifier 52 and the power divider 54, has good phase consistency for 8 output ports. The input end of the intermediate frequency amplifier 52 is connected to the output intermediate frequency signal of the external DA conversion circuit 11, the output end is connected to the common end of the first power divider 54 through the intermediate frequency band pass filter 53, two branches of the first power divider 54 are connected to the common end of the second power divider 54, two branches of the second power divider 54 are connected to the common end of the fourth power divider 54, two branches of the fifth power divider 54 are connected to the common end of the fifth power divider 54, the third power divider 54 is connected to the common end of the sixth power divider 54, and 8 branches of the fourth power divider 54 to the seventh power divider 54 are connected to the intermediate frequency input interfaces of the external 8 transceiving channels 2.

Further, the 4 two-channel AD acquisition circuits 14 are equivalent to 8 single-channel AD acquisition circuits, and at this time, the number of signal output interfaces of the clock circuit 13 is relatively reduced by 4.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.