阅读说明：本技术 一种上变频器 (Up converter ) 是由 熊新 张成军 陈松 刘会奇 罗烜 郭凡玉 于 2020-08-07 设计创作，主要内容包括：本发明的实施例提供了一种上变频器,涉及通信技术领域。该上变频器包括上变频模块、SMA输入接口和SMA输出接口,SMA输入接口、上变频模块和SMA输出接口依次电连接；上变频模块用于通过SMA输入接口接收中频信号,并对中频信号进行上变频处理,得到射频信号；上变频模块还用于通过SMA输出接口将射频信号发射至接收设备。该上变频器具有体型小的优点,能够适用于新型卫星移动通信终端。(The embodiment of the invention provides an up-converter, and relates to the technical field of communication. The up-converter comprises an up-conversion module, an SMA input interface and an SMA output interface, wherein the SMA input interface, the up-conversion module and the SMA output interface are electrically connected in sequence; the up-conversion module is used for receiving the intermediate frequency signal through the SMA input interface and performing up-conversion processing on the intermediate frequency signal to obtain a radio frequency signal; the up-conversion module is also used for transmitting the radio frequency signal to the receiving equipment through the SMA output interface. The up-converter has the advantage of small size and can be suitable for novel satellite mobile communication terminals.)

1. An up-converter is characterized by comprising an up-conversion module, an SMA input interface and an SMA output interface, wherein the SMA input interface, the up-conversion module and the SMA output interface are electrically connected in sequence;

the up-conversion module is used for receiving an intermediate frequency signal through the SMA input interface and performing up-conversion processing on the intermediate frequency signal to obtain a radio frequency signal;

the up-conversion module is also used for transmitting the radio frequency signal to receiving equipment through the SMA output interface.

2. The up-converter according to claim 1, wherein the up-conversion module comprises a first coupling circuit, an up-conversion circuit and a local oscillator circuit, the SMA input interface, the first coupling circuit, the up-conversion circuit and the SMA output interface are electrically connected in sequence, and the local oscillator circuit is electrically connected with both the first coupling circuit and the up-conversion circuit;

the first coupling circuit is used for transmitting the intermediate frequency signal received by the SMA input interface to the up-conversion circuit;

the first coupling circuit is further configured to transmit the reference signal received by the SMA input interface to the local oscillation circuit;

the local oscillator circuit is used for generating a local oscillator signal according to the reference signal and transmitting the local oscillator signal to the up-conversion circuit;

the up-conversion circuit is used for carrying out up-conversion processing on the intermediate frequency signal according to the local oscillation signal to obtain the radio frequency signal and transmitting the radio frequency signal to the SMA output interface.

3. The up-converter according to claim 2, wherein the up-conversion module further comprises a first amplifying filter circuit, a second amplifying filter circuit and a filter circuit, the first coupling circuit is electrically connected to the up-conversion circuit through the first amplifying filter circuit, the first coupling circuit is electrically connected to the local oscillator circuit through the filter circuit, and the up-conversion circuit is electrically connected to the SMA output interface through the second amplifying filter circuit;

the first amplifying and filtering circuit is used for amplifying and filtering the intermediate frequency signal;

the second amplifying and filtering circuit is used for amplifying and filtering the radio frequency signal;

the filter circuit is used for filtering the reference signal.

4. The up-converter according to claim 2, wherein the up-conversion module further comprises a second coupling circuit and a monitoring circuit, the up-conversion circuit being electrically connected to the SMA output interface and the monitoring circuit through the second coupling circuit, respectively;

the second coupling circuit is used for transmitting the radio frequency signal to the SMA output interface and the monitoring circuit respectively;

the monitoring circuit is used for judging whether the up-conversion module is abnormal or not according to the radio frequency signal.

5. The up-converter according to claim 4, wherein the monitoring circuit comprises a radio frequency detection unit and a logic control unit, and the second coupling circuit, the radio frequency detection unit and the logic control unit are electrically connected in sequence;

the radio frequency detection unit is used for receiving the radio frequency signal, generating a detection signal according to the radio frequency signal and transmitting the detection signal to the logic control unit;

and the logic control unit is used for judging whether the up-conversion module is abnormal or not according to the detection signal.

6. The upconverter of claim 4, wherein the upconversion module further comprises a power supply electrically connected to the first coupling circuit, the upconversion circuit, the local oscillator circuit, the second coupling circuit, and the monitoring circuit;

the power supply is used for supplying power to the first coupling circuit, the up-conversion circuit, the local oscillator circuit, the second coupling circuit and the monitoring circuit.

7. The upconverter of claim 1, wherein the upconversion module is integrated on a single-sided printed circuit board using a patch device.

8. The upconverter of claim 7, further comprising a cavity within which the single-sided printed circuit board is disposed and a cover plate that overlies the cavity.

9. The upconverter of claim 8, wherein the SMA input interface and SMA output interface are disposed on respective sides of the cavity.

10. The up-converter according to claim 1, further comprising a signal connector electrically connected to the up-conversion module;

the up-conversion module is also used for receiving a control instruction and a power supply voltage through the signal connector.

Technical Field

The invention relates to the technical field of communication, in particular to an up-converter.

Background

The Up-Converter (BUC) is a device for converting an L-band signal output from a satellite MODEM into a high-frequency rf signal and reversely transmitting the rf signal to a satellite.

Because the radio frequency output interface of the traditional up-converter is usually designed as a waveguide flange device to realize the interconnection of the up-converter and an external antenna, the radio frequency signal needs to enter a rectangular waveguide cavity through a coupling device, the structure is complex, the size is large, and the up-converter is not suitable for a novel satellite mobile communication terminal.

Disclosure of Invention

The object of the present invention includes, for example, providing an up-converter which has an advantage of a small size and can be suitably used for a new satellite mobile communication terminal.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides an up-converter, including an up-conversion module, an SMA input interface, and an SMA output interface, where the SMA input interface, the up-conversion module, and the SMA output interface are electrically connected in sequence;

the up-conversion module is used for receiving an intermediate frequency signal through the SMA input interface and performing up-conversion processing on the intermediate frequency signal to obtain a radio frequency signal;

the up-conversion module is also used for transmitting the radio frequency signal to receiving equipment through the SMA output interface.

In an optional embodiment, the up-conversion module includes a first coupling circuit, an up-conversion circuit, and a local oscillation circuit, the SMA input interface, the first coupling circuit, the up-conversion circuit, and the SMA output interface are sequentially electrically connected, and the local oscillation circuit is electrically connected to both the first coupling circuit and the up-conversion circuit;

the first coupling circuit is used for transmitting the intermediate frequency signal received by the SMA input interface to the up-conversion circuit;

the first coupling circuit is further configured to transmit the reference signal received by the SMA input interface to the local oscillation circuit;

the local oscillator circuit is used for generating a local oscillator signal according to the reference signal and transmitting the local oscillator signal to the up-conversion circuit;

the up-conversion circuit is used for carrying out up-conversion processing on the intermediate frequency signal according to the local oscillation signal to obtain the radio frequency signal, and transmitting the radio frequency signal to the SMA output interface.

In an optional embodiment, the up-conversion module further includes a first amplification filter circuit, a second amplification filter circuit, and a filter circuit, the first coupling circuit is electrically connected to the up-conversion circuit through the first amplification filter circuit, the first coupling circuit is electrically connected to the local oscillator circuit through the filter circuit, and the up-conversion circuit is electrically connected to the SMA output interface through the second amplification filter circuit;

the first amplifying and filtering circuit is used for amplifying and filtering the intermediate frequency signal;

the second amplifying and filtering circuit is used for amplifying and filtering the radio frequency signal;

the filter circuit is used for filtering the reference signal.

In an optional embodiment, the up-conversion module further includes a second coupling circuit and a monitoring circuit, and the up-conversion circuit is electrically connected to the SMA output interface and the monitoring circuit through the second coupling circuit, respectively;

the second coupling circuit is used for transmitting the radio frequency signal to the SMA output interface and the monitoring circuit respectively;

the monitoring circuit is used for judging whether the up-conversion module is abnormal or not according to the radio frequency signal.

In an optional embodiment, the monitoring circuit includes a radio frequency detection unit and a logic control unit, and the second coupling circuit, the radio frequency detection unit and the logic control unit are electrically connected in sequence;

the radio frequency detection unit is used for receiving the radio frequency signal, generating a detection signal according to the radio frequency signal and transmitting the detection signal to the logic control unit;

and the logic control unit is used for judging whether the up-conversion module is abnormal or not according to the detection signal.

In an optional implementation manner, the up-conversion module further includes a power supply, and the power supply is electrically connected to the first coupling circuit, the up-conversion circuit, the local oscillator circuit, the second coupling circuit, and the monitoring circuit;

the power supply is used for supplying power to the first coupling circuit, the up-conversion circuit, the local oscillator circuit, the second coupling circuit and the monitoring circuit.

In an alternative embodiment, the up-conversion module is integrated on a single-sided printed circuit board by using a patch device.

In an optional embodiment, the up-converter further includes a cavity and a cover plate, the single-sided printed circuit board is disposed in the cavity, and the cover plate covers the cavity.

In an optional embodiment, the SMA input interface and the SMA output interface are respectively disposed on two sides of the cavity.

In an alternative embodiment, the up-converter further comprises a signal connector electrically connected to the up-conversion module;

the up-conversion module is also used for receiving a control instruction and a power supply voltage through the signal connector.

The beneficial effects of the embodiment of the invention include, for example: an up-converter comprises an up-conversion module, an SMA input interface and an SMA output interface, wherein the SMA input interface, the up-conversion module and the SMA output interface are electrically connected in sequence; the up-conversion module is used for receiving the intermediate frequency signal through the SMA input interface and performing up-conversion processing on the intermediate frequency signal to obtain a radio frequency signal; the up-conversion module is also used for transmitting the radio frequency signal to the receiving equipment through the SMA output interface. It can be seen that, through setting up SMA input interface and SMA output interface, can replace the KU waveguide on the traditional up-converter, and then saved coupling device and waveguide flange structure for the size of up-converter is done littleer, and the installation of being convenient for also can be applicable to novel satellite mobile communication terminal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a block diagram of an up-converter according to an embodiment of the present invention;

fig. 2 is a block diagram of another upconverter according to an embodiment of the present invention;

fig. 3 is a block diagram of a further up-converter according to an embodiment of the present invention;

fig. 4 is a block diagram of a further up-converter according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an up-converter according to an embodiment of the present invention;

fig. 6 is a front view of an up-converter according to an embodiment of the present invention;

fig. 7 is a top view of an up-converter according to an embodiment of the present invention;

fig. 8 is a bottom view of an up-converter according to an embodiment of the present invention.

Icon: 100-up converter; 110-an up-conversion module; 111-a first coupling circuit; 112-up-conversion circuitry; 113-local oscillator circuitry; 114-a first amplification filter circuit; 115-a second amplification filter circuit; 116-a filter circuit; 117-second coupling circuit; 118-a monitoring circuit; 1181-a radio frequency detection unit; 1182-a logic control unit; 119-a power supply; 120-SMA input interface; 130-SMA output interface; 140-a cavity; 150-a cover plate; 170-signal connectors; 180-single-sided printed circuit board; 200-a receiving device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1, the present embodiment provides an up-converter 100, where the up-converter 100 includes an up-conversion module 110, an SMA input interface 120, and an SMA output interface 130, and the SMA input interface 120, the up-conversion module 110, and the SMA output interface 130 are electrically connected in sequence.

In this embodiment, the up-conversion module 110 is configured to receive the intermediate frequency signal through the SMA input interface 120, and perform up-conversion processing on the intermediate frequency signal to obtain a radio frequency signal; the up-conversion module 110 is also used to transmit the radio frequency signal to the receiving device 200 through the SMA output interface 130.

It can be understood that the intermediate frequency signal may be an L-band intermediate frequency signal, where the L-band intermediate frequency signal refers to a satellite signal output by a satellite downlink signal (C-band: 3.7 GHz-4.2 GHz, Ku-band: 12.25 GHz-12.75 GHz) after being down-converted by a tuner (LNB), and the frequency of the L-band intermediate frequency signal is 950 MHz-2150 MHz. The radio frequency signal can be a KU band radio frequency signal, and the K band refers to a radio wave band with the frequency of 12-18 GHz. Therefore, the up-conversion module 110 of the present application can be a KU band up-conversion module 110.

It can be seen that the KU waveguide on the conventional up-converter 100 can be replaced by providing an SMA input interface 120 and an SMA output interface 130. And then has saved coupling device and waveguide flange structure for the size of up converter 100 is made littleer, and the installation of being convenient for also can be applicable to novel satellite mobile communication terminal.

In this embodiment, as shown in fig. 2, the up-conversion module 110 includes a first coupling circuit 111, an up-conversion circuit 112, and a local oscillation circuit 113, the SMA input interface 120, the first coupling circuit 111, the up-conversion circuit 112, and the SMA output interface 130 are sequentially electrically connected, and the local oscillation circuit 113 is electrically connected to both the first coupling circuit 111 and the up-conversion circuit 112.

In this embodiment, the first coupling circuit 111 is configured to transmit the intermediate frequency signal received by the SMA input interface 120 to the upconversion circuit 112; the first coupling circuit 111 is further configured to transmit the reference signal received by the SMA input interface 120 to the local oscillation circuit 113; the local oscillation circuit 113 is configured to generate a local oscillation signal according to the reference signal, and transmit the local oscillation signal to the upconversion circuit 112; the up-conversion circuit 112 is configured to perform up-conversion processing on the intermediate frequency signal according to the local oscillator signal to obtain a radio frequency signal, and transmit the radio frequency signal to the SMA output interface 130.

It is understood that the frequency of the reference signal may be set to 10 MHz. The SMA input interface 120 may simultaneously transmit the intermediate frequency signal and the reference signal to the first coupling circuit 111. The first coupling circuit 111 transmits the intermediate frequency signal and the reference signal to the up-conversion circuit 112 and the local oscillation circuit 113, respectively. The local oscillation circuit 113 generates a local oscillation signal based on the reference signal and transmits the local oscillation signal to the up-conversion circuit 112. The up-conversion circuit 112 performs up-conversion processing on the intermediate frequency signal with the local oscillation signal as a reference to obtain a radio frequency signal, and transmits the radio frequency signal to the SMA output interface 130.

In this embodiment, as shown in fig. 3, the up-conversion module 110 further includes a first amplification filter circuit 114, a second amplification filter circuit 115, and a filter circuit 116 on the basis of fig. 2, the first coupling circuit 111 is electrically connected to the up-conversion circuit 112 through the first amplification filter circuit 114, the first coupling circuit 111 is electrically connected to the local oscillation circuit 113 through the filter circuit 116, and the up-conversion circuit 112 is electrically connected to the SMA output interface 130 through the second amplification filter circuit 115.

In this embodiment, the first amplification filter circuit 114 is configured to perform amplification filtering processing on the intermediate frequency signal; the second amplification and filtering circuit 115 is used for performing amplification and filtering processing on the radio frequency signal; the filter circuit 116 is used for filtering the reference signal.

It is understood that the first amplifying and filtering circuit 114 and the second amplifying and filtering circuit 115 each include an operational amplifier, and the operational amplifier is used for signal amplification. The first amplifying and filtering circuit 114, the second amplifying and filtering circuit 115, and the filtering circuit 116 may each include a capacitor, a resistor, an inductor, and the like, and a filtering component composed of the capacitor, the resistor, and the inductor is used for performing a signal filtering function.

As shown in fig. 3, the up-conversion module 110 further includes a second coupling circuit 117 and a monitoring circuit 118 on the basis of fig. 2, and the up-conversion circuit 112 is electrically connected to the SMA output interface 130 and the monitoring circuit 118 through the second coupling circuit 117.

It will be appreciated that the up-conversion circuit 112 is electrically connected to the SMA output interface 130 and the monitoring circuit 118 via a second amplification filter circuit 115 and a second coupling circuit 117, respectively.

In this embodiment, the second coupling circuit 117 is configured to transmit the radio frequency signal to the SMA output interface 130 and the monitoring circuit 118 respectively; the monitoring circuit 118 is used for determining whether the up-conversion module 110 is abnormal according to the rf signal.

The monitoring circuit 118 includes a radio frequency detection unit 1181 and a logic control unit 1182, and the second coupling circuit 117, the radio frequency detection unit 1181 and the logic control unit 1182 are electrically connected in sequence. The rf detection unit 1181 is configured to receive the rf signal, generate a detection signal according to the rf signal, and transmit the detection signal to the logic control unit 1182; the logic control unit 1182 is configured to determine whether the up-conversion module 110 is abnormal according to the detection signal.

It is understood that rf detection unit 1181 includes an rf detector for filtering out high frequency signals in the rf signal and displaying a detection signal composed of positive and negative waves. The logic control Unit 1182 may be an integrated circuit chip with a Processing function, and may be a Central Processing Unit (CPU), a Network Processor (NP), or the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc.

In this embodiment, second coupling circuit 117 is primarily intended to transmit the rf circuitry to rf detection unit 1181. Unlike the conventional up-converter 100, which needs a coupling circuit for coupling the rf signal to the receiving device 200, the up-converter 100 of the present application can omit the coupling circuit for coupling the rf signal to the receiving device 200.

As shown in fig. 3, the up-conversion module 110 further includes a power supply 119 based on fig. 2, where the power supply 119 is electrically connected to the first coupling circuit 111, the up-conversion circuit 112, the local oscillator circuit 113, the second coupling circuit 117, and the monitoring circuit 118; the power supply 119 is used to supply power to the first coupling circuit 111, the up-conversion circuit 112, the local oscillation circuit 113, the second coupling circuit 117, and the monitoring circuit 118.

As shown in fig. 4, the up-converter 100 further includes a signal connector 170 on the basis of fig. 1, and the signal connector 170 is electrically connected to the up-conversion module 110. The up-conversion module 110 is also configured to receive control commands and supply voltages via the signal connector 170.

It is understood that the signal connector 170 is electrically connected to the power source 119 and the logic control unit 1182, respectively, the signal connector 170 may send a control command to the logic control unit 1182, and the signal connector 170 may also transmit a power source voltage to the power source 119. The power supply 119 converts the power supply voltage to supply power to the first coupling circuit 111, the up-conversion circuit 112, the local oscillation circuit 113, the second coupling circuit 117, and the monitoring circuit 118.

The signal connector 170 may employ a J30 interface, among others.

As shown in fig. 5, the up-conversion module 110 is integrated on a single-sided printed circuit board 180 using a chip device. This application adopts the volume that the paster device can very big reduction up converter 100, and adopts single face printed circuit board 180 can more practice thrift the cost.

As shown in fig. 5, the up-converter 100 further includes a cavity 140 and a cover plate 150, the single-sided printed circuit board 180 is disposed in the cavity 140, and the cover plate 150 covers the cavity 140.

For ease of understanding, as shown in fig. 6, 7 and 8, the SMA input interface 120 and the SMA output interface 130 are respectively disposed at both sides of the cavity 140. And the signal connector 170 may be disposed on the same side as the SMA input interface 120. Of course, in other embodiments, the signal connector 170 may be disposed at other positions of the cavity 140, and is not limited herein.

In this embodiment, the receiving device 200 may be an antenna, a satellite device, and the like.

In summary, an embodiment of the present invention provides an up-converter, which includes an up-conversion module, an SMA input interface, and an SMA output interface, where the SMA input interface, the up-conversion module, and the SMA output interface are electrically connected in sequence; the up-conversion module is used for receiving the intermediate frequency signal through the SMA input interface and performing up-conversion processing on the intermediate frequency signal to obtain a radio frequency signal; the up-conversion module is also used for transmitting the radio frequency signal to the receiving equipment through the SMA output interface. It can be seen that, through setting up SMA input interface and SMA output interface, can replace the KU waveguide on the traditional up-converter, and then saved coupling device and waveguide flange structure for the size of up-converter is done littleer, and the installation of being convenient for also can be applicable to novel satellite mobile communication terminal.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.