阅读说明：本技术 一种超短波异频功率合路器 (ultrashort wave pilot frequency power combiner ) 是由 卜景鹏 官国阳 汪雄剑 严方勇 刘忠程 林�源 李艳香 林伟烁 于 2019-10-16 设计创作，主要内容包括：本发明提供一种超短波波段大功率移相器,大功率移相器采用数字移相架构,采用11个二级制电容组实现11bit的数字移相器,在30MHz最大移相达140度。由移相器为配相核心的电路配合跳频滤波器可以实现N路异频射频功率的合成,用于多个射频电台公用一个天线的场合。(The invention provides ultrashort wave band high-power phase shifters, wherein the high-power phase shifter adopts a digital phase shifting framework, 11 two-level capacitor banks are adopted to realize an 11-bit digital phase shifter, the maximum phase shifting reaches 140 degrees at 30MHz, and the phase shifter is a circuit matched with a phase matching core and matched with a frequency hopping filter, so that the synthesis of N paths of pilot frequency radio frequency power can be realized, and the phase shifter is used for occasions where a plurality of radio frequency radio stations share antennas.)

The ultrashort wave pilot frequency power combiner is characterized by comprising a frequency hopping filter 1, a frequency hopping filter 2 and a … frequency hopping filter n, a digital phase shifter 1, a digital phase shifter 2 and a … digital phase shifter n, wherein the output of the frequency hopping filter i is connected with the digital phase shifter i and then mutually connected, and the digital phase shifter i shifts the phase

2. The ultrashort wave pilot frequency power combiner of claim 1, wherein the digital phase shifter i adopts a diode as a switch to realize the loading or the disconnection of a two-stage capacitor array, comprises two loaded capacitor arrays bridge, any capacitor arrays are composed of 11 capacitors C0-C10, and are realized by adopting 11 independent diodes D0-D10 switches, and the capacitor C is realized by adopting a diode D0-D10 switch_jDiode D_jN pole of (2), diode D_jP electrode of (2) is grounded, and a capacitor C_jFollowing the 90 degree bridge, j is any integer from 0 to 10.

3. The ultrashort wave pilot frequency power combiner of claim 2, wherein: diode D_jThe bias circuit comprises a triode Q03, a triode Q01 and a triode Q05; a voltage stabilizing diode D02, a diode D01, a capacitor C01, a resistor R01, a resistor R02, a resistor R03, a resistor R04 and a resistor R05;

complementary level control level V_CTRL+And V_CTRL-The base electrode of the triode Q03 and the N electrode of the voltage stabilizing diode D02 are respectively connected; the emitter of the triode Q03 is grounded, and the collector of the triode Q03 is connected with the base of the triode Q01 and is connected with a 60VDC power supply through a resistor R04; the P electrode of the voltage stabilizing diode D02 is connected with the base electrode of the triode Q02 and is connected with a-3.3 VDC power supply through a resistor R05;

an emitter of the transistor Q01 and an emitter of the transistor Q2 are respectively connected with a 60VDC power supply and a-3.3 VDC power supply, a collector of the transistor Q01 is connected with a collector of the transistor Q2 and is connected with an N pole of the diode D01 through the resistor R03, a P pole of the diode D01 is respectively connected with an end of the resistor R01 and the resistor R02, the other end of the resistor R01 is grounded, the other end of the resistor R02 is grounded through the capacitor C01, and a lead is led out from a common end connected with the capacitor C01 and the resistor R02 and is connected with a common end connected with the N poles of the resistor R03 and the diode D01.

4. The ultrashort wave pilot frequency power combiner of claim 2, wherein: the 11 capacitors C0-C10 have values of 1pF, 2pF, 4pF and … 1024pF respectively.

Technical Field

The invention relates to the field of power combiners, in particular to an ultra-short wave pilot frequency power combiner.

Background

Modern high data rate, high security communications place higher demands on channel selectivity and electromagnetic compatibility. Particularly, in military secret communication, land communication command equipment, large naval vessel equipment and the like, various wireless communication equipment with high power, multiple frequency bands, frequency hopping, spread spectrum and the like are integrated and co-located, so that a severe test is brought to the electromagnetic compatibility of the system. These electromagnetic interference problems include: 1) EMI problems with adjacent signals: cross modulation, reciprocal mixing, bottom noise of the transmitter; 2) EMI problems with out-of-band signals: clutter emission of a transmitter, distortion response of a receiver; 3) intermodulation products: including structural intermodulation products, transmitter intermodulation, receiver intermodulation, etc. The radio frequency band-pass filter is the most effective measure for solving out-of-band interference, the filter allows useful signals to pass through, and filters other useless signals, namely self-interference signals or intentional interference signals of the station, so that the radio frequency band-pass filter plays a vital role in normal work of communication equipment. Modern communication requires adjustable radio frequency due to confidentiality, so that the filter is required to have tunable capability, and the filtering frequency band can be automatically adjusted according to the working frequency of a communication system to realize dynamic filtering.

The multiplexer is a combination of a plurality of filters working in different filter frequency bands, can realize a combiner of multi-frequency signals, can also be used as a frequency division system to realize the separation of receiving and transmitting signals of different frequencies, each component filter of the frequency hopping multiplexer is an electrically adjustable filter, can realize the arbitrary superposition of a plurality of different frequencies, has high synthesis efficiency, small loss and the like, the frequency hopping multiplexer can efficiently synthesize transmitters and receivers of a plurality of communication systems, shares antennas to realize multi-frequency communication, realizes that the microwave multiplexer has a plurality of design schemes, applies more star point type structure multiplexing schemes, multi-head line coupling multiplexing schemes, 90 DEG directional coupler multiplexing schemes, adjustable phaser multiplexing schemes, circulator multiplexing schemes, directional filter multiplexing schemes and the like, documents [ 1 ] (travel, King-Tuo-Leng, Song-Gaxing, the synthesis and design of the electronic multiplexer, 2013,26 (6): 153-.

Because the realization difficulty of the frequency hopping filter and the frequency hopping multiplexer is high, the design of the current electrically tunable filter and the frequency hopping multiplexer is only concentrated on a low-frequency band, and no mature product exists at present in a microwave frequency band.

Disclosure of Invention

The invention provides ultrashort wave pilot frequency power combiners aiming at the problems that the current frequency-hopping filter and frequency-hopping multiplexer are difficult to realize, the current electrically tunable filter and frequency-hopping multiplexer are only designed in a low-frequency band, and no mature product exists in a microwave frequency band at present.

The technical scheme adopted by the invention for realizing the technical purpose is that ultrashort wave pilot frequency power combiners comprise a frequency hopping filter 1, a frequency hopping filter 2 and a … frequency hopping filter n, a digital phase shifter 1, a digital phase shifter 2 and a … digital phase shifter n, the outputs of the frequency hopping filter i are connected with the digital phase shifter i and then are connected with each other, and the digital phase shifter i shifts the phase

Determining the parallel impedance of the other frequency-hopping filters at the total port at frequency f_iWhere should be infinite; f. of_iIs the central frequency point of the frequency hopping filter i; where n is a natural number not less than 2, and i is any number from 1 to n.

The invention realizes ultrashort wave band high-power phase shifters, wherein the high-power phase shifter adopts a digital phase shifting framework, adopts 11 two-level capacitor banks to realize an 11-bit digital phase shifter, and shifts the phase at the maximum of 140 degrees at 30MHz, and the phase shifter is a circuit matched with a phase matching core and matched with a frequency hopping filter, so that the synthesis of N paths of pilot frequency radio frequency power can be realized, and the phase shifter is used for occasions where a plurality of radio frequency radio stations share antennas.

, the digital phase shifter i adopts diode as switch to realize the loading or breaking of two-stage capacitor array, including two loaded capacitor arrays bridge, any capacitor arrays are composed of 11 capacitors C0-C10, and are realized by 11 independent diodes D0-D10 switch, and the capacitor C is connected with the capacitor C_jDiode D_jN pole of (2), diode D_jP electrode of (2) is grounded, and a capacitor C_jFollowing the 90 degree bridge, j is any integer from 0 to 10.

, the ultrashort wave pilot frequency power combiner includes a diode D_jThe bias circuit comprises a triode Q03, a triode Q01 and a triode Q05; a voltage stabilizing diode D02, a diode D01, a capacitor C01, a resistor R01, a resistor R02, a resistor R03, a resistor R04 and a resistor R05;

complementary level control level V_CTRL+And V_CTRL-The base electrode of the triode Q03 and the N electrode of the voltage stabilizing diode D02 are respectively connected; the emitter of the triode Q03 is grounded, and the collector of the triode Q03 is connected with the base of the triode Q01 and is connected with a 60VDC power supply through a resistor R04; the P electrode of the voltage stabilizing diode D02 is connected with the base electrode of the triode Q02 and is connected with a-3.3 VDC power supply through a resistor R05;

an emitter of the transistor Q01 and an emitter of the transistor Q2 are respectively connected with a 60VDC power supply and a-3.3 VDC power supply, a collector of the transistor Q01 is connected with a collector of the transistor Q2 and is connected with an N pole of the diode D01 through the resistor R03, a P pole of the diode D01 is respectively connected with an end of the resistor R01 and the resistor R02, the other end of the resistor R01 is grounded, the other end of the resistor R02 is grounded through the capacitor C01, and a lead is led out from a common end connected with the capacitor C01 and the resistor R02 and is connected with a common end connected with the N poles of the resistor R03 and the diode D01.

, in the ultra-short wave pilot frequency power combiner, the 11 capacitors C0-C10 have values of 1pF, 2pF, 4pF and … 1024pF respectively.

The invention is further described with reference to the following figures and detailed description.

Drawings

Fig. 1 is a structural diagram of an inter-frequency two-hybrid according to an embodiment of the present invention.

Fig. 2 is a diagram of the pilot frequency two-hybrid frequency response of embodiment of the present invention.

Fig. 3 is a structural diagram of a pilot frequency three-way combiner according to a second embodiment of the present invention.

Fig. 4 is a frequency response diagram of a second pilot frequency and third combiner according to an embodiment of the invention.

Fig. 5 is a structure diagram of a pilot frequency four-hybrid according to a third embodiment of the present invention.

Fig. 6 is a frequency response diagram of a pilot frequency four-combiner according to a third embodiment of the present invention.

Fig. 7 is a diagram of a digital phase shifter architecture according to the present invention.

Fig. 8 is a circuit for biasing the switching diode of the present invention.

Detailed Description