RF transceiver components and phased array radar

Abstract

The present invention discloses a radio frequency transceiver assembly and a phased array radar, comprising a signal switching module, a transmitting module, a receiving module and a ring isolator, wherein the signal switching module is connected with a radio frequency connector, the transmitting module comprises a first gain temperature self-adjusting circuit, a first phase temperature self-adjusting circuit and a first multi-stage amplifier connected in cascade, the first gain temperature self-adjusting circuit or the first phase temperature self-adjusting circuit is connected with the third signal end of the signal switching module, the receiving module comprises a limiter, a second multi-stage amplifier, a second phase temperature self-adjusting circuit and a second gain temperature self-adjusting circuit connected in cascade, the second gain temperature self-adjusting circuit or the second phase temperature self-adjusting circuit is connected with the second signal end of the signal switching module, the ring isolator is respectively connected with the first multi-stage amplifier and the limiter, and the ring isolator is also connected with an antenna interface. The present invention is conducive to improving the situation that the gain and phase of the radio frequency transceiver assembly change with temperature.

Description

Technical Field

[0001] The present invention relates to the field of radar technology, and in particular to a radio frequency transceiver component and a phased array radar. Background Art

[0002] Phased array radar uses a large number of small antenna units to form an antenna array, where the antenna unit contains RF transceiver components. Since phased array radar works outdoors, the temperature of the working environment varies greatly, and the transmission gain, reception gain, transmission phase, and reception phase of the RF transceiver components will change with temperature changes. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a radio frequency transceiver component and a phased array radar, which can improve the gain and phase of the radio frequency transceiver component changing with temperature.

[0004] In the first aspect, a radio frequency transceiver component according to an embodiment of the present invention includes a signal switching module having a first signal end, a second signal end and a third signal end, wherein the first signal end of the signal switching module is used to connect to a radio frequency connector, and the first signal end can switch channels between the second signal end and the third signal end; a transmitting module includes a first gain temperature self-adjusting circuit, a first phase temperature self-adjusting circuit and a first multi-stage amplifier connected in cascade, wherein the input end of the first gain temperature self-adjusting circuit or the input end of the first phase temperature self-adjusting circuit is connected to the third signal end of the signal switching module; a receiving module includes a limiter, a second multi-stage amplifier, a second phase temperature self-adjusting circuit and a second gain temperature self-adjusting circuit connected in cascade, wherein the output end of the second gain temperature self-adjusting circuit or the output end of the second phase temperature self-adjusting circuit is connected to the second signal end of the signal switching module; and a ring isolator is connected to the output end of the first multi-stage amplifier and the input end of the limiter, respectively, and the ring isolator is also used to connect to an antenna interface.

[0005] The radio frequency transceiver assembly according to the embodiment of the present invention has at least the following beneficial effects:

[0006] By adding a first gain temperature self-adjusting circuit and a first phase temperature self-adjusting circuit to the transmitting module and adding a second gain temperature self-adjusting circuit and a second phase temperature self-adjusting circuit to the receiving module, the gain and phase of the transmitting signal and the receiving signal can be self-adjusted according to the temperature change, which is beneficial to improving the gain and phase of the RF transceiver component changing with temperature.

[0007] According to some embodiments of the present invention, the signal switching module includes a first RF switch and a second RF switch, a digitally controlled attenuator, a first amplifier, a digitally controlled phase shifter and a third RF switch connected in cascade; the first RF switch, the second RF switch and the third RF switch each have a first end, a second end and a third end, and the first end is capable of switching paths between the second end and the third end; the first end of the first RF switch is used as the first signal end, and the second end of the first RF switch is connected to the second end of the second RF switch; the third end of the second RF switch is used as the second signal end, and the first end of the second RF switch is connected to the digitally controlled attenuator; the first end of the third RF switch is connected to the output end of the digitally controlled phase shifter, the second end of the third RF switch is connected to the first end of the first RF switch, and the third end of the third RF switch is used as the third signal end.

[0008] According to some embodiments of the present invention, the first gain temperature self-adjusting circuit includes a gain control unit and a first temperature compensation unit, the first temperature compensation unit includes a first voltage divider unit, a first diode unit, a first follower and a first current limiting filter unit, the first voltage divider unit is connected to the first diode unit and is grounded through the first diode unit, the input end of the first voltage divider unit is connected to a first working voltage, the first voltage divider unit is connected to the input end of the first follower, the output end of the first follower is connected to the first current limiting filter unit, and is connected to the gain control unit through the first current limiting filter unit.

[0009] According to some embodiments of the present invention, the gain control unit includes a PIN diode attenuator, a first coupling capacitor and a second coupling capacitor, the PIN diode attenuator is respectively connected to the first end of the first coupling capacitor, the first end of the second coupling capacitor and the output end of the first temperature compensation unit, the second end of the first coupling capacitor is used as a signal input end, and the second end of the second coupling capacitor is used as a signal output end.

[0010] According to some embodiments of the present invention, the structure of the second gain temperature self-adjusting circuit is the same as that of the first gain temperature self-adjusting circuit.

[0011] According to some embodiments of the present invention, the first phase temperature self-adjusting circuit includes a phase control unit and a second temperature compensation unit, the second temperature compensation unit includes a second voltage divider unit, a second diode unit, a second follower and a second current limiting filter unit, the second voltage divider unit is connected to the second diode unit and grounded through the second diode unit, the input end of the second voltage divider unit is connected to a second working voltage, the second voltage divider unit is connected to the input end of the second follower, the output end of the second follower is connected to the second current limiting filter unit, and is connected to the phase control unit through the second current limiting filter unit.

[0012] According to some embodiments of the present invention, the phase control unit includes a 3dB bridge, a first varactor diode and a second varactor diode, the first end of the 3dB bridge is connected to a third coupling capacitor, and a signal is received through the third coupling capacitor, the first end of the 3dB bridge is also connected to the output end of the second temperature compensation unit, the second end of the 3dB bridge is connected to a fourth coupling capacitor, and a signal is output through the fourth coupling capacitor, the third end and the fourth end of the 3dB bridge are respectively connected to the first varactor diode and the second varactor diode, and the first varactor diode and the second varactor diode are both grounded.

[0013] According to some embodiments of the present invention, the structure of the second phase temperature self-adjusting circuit is the same as that of the first phase temperature self-adjusting circuit.

[0014] In a second aspect, a phased array radar according to an embodiment of the present invention includes the above-mentioned radio frequency transceiver component.

[0015] The phased array radar according to the embodiment of the present invention has at least the following beneficial effects:

[0016] By adding a first gain temperature self-adjusting circuit and a first phase temperature self-adjusting circuit to the transmitting module and adding a second gain temperature self-adjusting circuit and a second phase temperature self-adjusting circuit to the receiving module, the gain and phase of the transmitting signal and the receiving signal can be self-adjusted according to the temperature change, which is beneficial to improving the gain and phase of the RF transceiver component changing with temperature.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1This is one of the principle diagrams of the radio frequency transceiver component of an embodiment of the present invention;

[0020] Figure 2 This is the second schematic diagram of the radio frequency transceiver assembly according to an embodiment of the present invention;

[0021] Figure 3 for Figure 1 The circuit schematic diagram of the first gain temperature self-adjusting circuit of the radio frequency transceiver assembly is shown;

[0022] Figure 4 for Figure 1 A circuit schematic diagram of a first phase temperature self-adjusting circuit of a radio frequency transceiver component is shown. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, words such as “connection” and “cascade” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0026] This embodiment discloses a phased array radar, including a radio frequency transceiver component. Figure 1The radio frequency transceiver assembly includes a signal switching module 100, a transmitting module 200, a receiving module 300 and a ring isolator 400. The signal switching module 100 has a first signal end, a second signal end and a third signal end. The first signal end of the signal switching module 100 is used to connect a radio frequency connector (RFC). The first signal end can switch channels between the second signal end and the third signal end, so that the transmitting signal and the receiving signal can share part of the channel, which is conducive to simplifying the circuit structure, reducing circuit components, and thus reducing production costs. The transmitting module 200 includes a first gain temperature self-adjusting circuit 210, a first phase temperature self-adjusting circuit 220 and a first multi-stage amplifier 230 connected in cascade. The input end of the first gain temperature self-adjusting circuit 210 is connected to the third signal end of the signal switching module 100. It should be noted that the cascade order of the first gain temperature self-adjusting circuit 210 and the first phase temperature self-adjusting circuit 220 can be adjusted so that the input end of the first phase temperature self-adjusting circuit 220 is connected to the third signal end of the signal switching module 100. The receiving module 300 includes a limiter 310, a second multi-stage amplifier 320, a second phase temperature self-adjusting circuit 330, and a second gain temperature self-adjusting circuit 340 connected in cascade. The output end of the second gain temperature self-adjusting circuit 340 is connected to the second signal end of the signal switching module 100. It should be noted that the cascade sequence of the second phase temperature self-adjusting circuit 330 and the second gain temperature self-adjusting circuit 340 can be adjusted so that the output end of the second phase temperature self-adjusting circuit 330 is connected to the second signal end of the signal switching module 100. The first multi-stage amplifier 230 and the second multi-stage amplifier 320 both include a plurality of amplifiers connected in cascade. In the present embodiment, the first multi-stage amplifier 230 and the second multi-stage amplifier 320 both include two-stage cascaded amplifiers. The annular isolator 400 is respectively connected to the output end of the first multi-stage amplifier 230 and the input end of the limiter 310. The annular isolator 400 is used to isolate the transmit signal and the receive signal to avoid signal crosstalk. The annular isolator 400 is also used to connect the antenna interface (ANT, Antennahardware interface) for signal transmission or reception.

[0027] In this embodiment, when signal transmission is required, the signal enters the signal switching module 100 through the RF connector, the signal switching module 100 modulates the signal, shifts the phase, and outputs it to the transmitting module 200 through the third signal terminal, the transmitting module 200 performs gain temperature compensation, phase temperature compensation, and amplifies the signal, and then outputs it to the annular isolator 400 and the antenna interface for signal transmission; when signal reception is required, the signal enters the receiving module 300 through the antenna interface and the annular isolator 400, the receiving module 300 amplifies the signal, performs phase temperature compensation and gain temperature compensation, and then outputs it to the second signal terminal of the signal switching module 100, the signal switching module 100 modulates the signal, shifts the phase, and then outputs it to the RF receiver through the first signal terminal. By adding a first gain temperature self-adjusting circuit 210 and a first phase temperature self-adjusting circuit 220 to the transmitting module 200, and adding a second gain temperature self-adjusting circuit 340 and a second phase temperature self-adjusting circuit 330 to the receiving module 300, the gain and phase of the transmitting signal and the receiving signal can be self-adjusted according to the temperature change, which is beneficial to improving the gain and phase of the RF transceiver component changing with temperature.

[0028] Please refer to Figure 1 and Figure 2The signal switching module 100 includes a first RF switch 110 and a second RF switch 120, a digitally controlled attenuator 130, a first amplifier 140, a digitally controlled phase shifter 150 and a third RF switch 160 connected in cascade, wherein the digitally controlled attenuator 130 is used to adjust the amplification amplitude of the signal to meet the amplitude consistency requirement between the output signals, and the digitally controlled phase shifter 150 is used to shift the phase of the signal to achieve phase-controlled scanning of the antenna beam. The first RF switch 110, the second RF switch 120 and the third RF switch 160 each have a first end, a second end and a third end. The first end can switch paths between the second end and the third end. The first end of the first RF switch 110 is used as the first signal end of the signal switching module 100. The second end of the first RF switch 110 is connected to the second end of the second RF switch 120. The third end of the second RF switch 120 is used as the second signal end of the signal switching module 100. The first end of the second RF switch 120 is connected to the digitally controlled attenuator 130. The first end of the third RF switch 160 is connected to the output end of the digitally controlled phase shifter 150. The second end of the third RF switch 160 is connected to the first end of the first RF switch 110. The third end of the third RF switch 160 is used as the third signal end of the signal switching module 100. When it is necessary to transmit a signal, the signal sequentially passes through the first RF switch 110, the second RF switch 120, the digitally controlled attenuator 130, the first amplifier 140, the digitally controlled phase shifter 150 and the third RF switch 160 to enter the transmitting module 200. When it is necessary to receive a signal, the signal enters the receiving module 300 and sequentially passes through the second RF switch 120, the digitally controlled attenuator 130, the first amplifier 140, the digitally controlled phase shifter 150, the third RF switch 160 and the first RF switch 110, and is output through the RF connector. By adjusting the switching states of the first RF switch 110, the second RF switch 120 and the third RF switch 160, the channel switching between the second signal terminal and the third signal terminal of the signal switching module 100 can be realized.

[0029] Please refer to Figure 3 The first gain temperature self-adjusting circuit 210 includes a gain control unit 211 and a first temperature compensation unit 212. The first temperature compensation unit 212 includes a first voltage divider unit 2121, a first diode unit 2122, a first follower 2123 and a first current limiting filter unit 2124. The first voltage divider unit 2121 is connected to the first diode unit 2122 and is grounded through the first diode unit 2122. The input end of the first voltage divider unit 2121 is connected to the first working voltage, the first voltage divider unit 2121 is connected to the input end of the first follower 2123, the output end of the first follower 2123 is connected to the first current limiting filter unit 2124, and is connected to the gain control unit 211 through the first current limiting filter unit 2124. Figure 3The resistor R1 and the resistor R2 form the first voltage divider unit 2121, and the diode D1 and the diode D2 form the first diode unit 2122. The diode D1 and the diode D2 of this embodiment are both ordinary diodes. The forward voltage drop of the diode temperature characteristic decreases as the temperature increases. The temperature control function can be realized by selecting a reasonable number of ordinary diodes. The input end of the follower U1 is connected to the resistor R1, and the output end of the follower U1 is connected to the current limiting resistor R3. The resistor R3 and the inductor L1 form the first current limiting filter unit 2124. The inductor L1 can reduce the influence of the high-frequency signal of the gain control unit 211. The resistor R1 is connected to the positive voltage. When the temperature increases, the voltage of the diode D1 and the diode D2 decreases, thereby reducing the input voltage of the follower U1. Since the resistance value of the resistor R3 remains unchanged, the current flowing through the gain control unit 211 decreases, and the attenuation of the gain control unit 211 decreases, thereby playing a role in compensating the gain. It should be noted that the number of stages of the first gain temperature self-adjusting circuit 210 can be multiple stages to solve the problem of too large full temperature gain changes.

[0030] Please continue to refer to Figure 3 , the gain control unit 211 includes a PIN diode attenuator, a first coupling capacitor and a second coupling capacitor, for example, Figure 3 The PIN diode Dp, capacitor C1 and capacitor C2 shown in the figure, the PIN diode attenuator is connected to the first end of the first coupling capacitor, the first end of the second coupling capacitor and the output end of the first temperature compensation unit 212 respectively, the second end of the first coupling capacitor is used as a signal input end, and the second end of the second coupling capacitor is used as a signal output end. The signal is input from the first coupling capacitor, processed by the PIN diode attenuator, and then output from the second coupling capacitor, wherein the current flowing through the PIN diode attenuator is controlled by the first temperature compensation unit 212, therefore, the attenuation amplitude of the PIN diode attenuator can be controlled by the first temperature compensation unit 212, thereby realizing self-adjustment of the gain.

[0031] In this embodiment, the structure of the second gain temperature self-adjusting circuit 340 is the same as that of the first gain temperature self-adjusting circuit 210, which will not be described again. The first gain temperature self-adjusting circuit 210 and the second gain self-adjusting circuit of this embodiment have simple structures and fewer components, which is conducive to reducing production costs.

[0032] Please refer to Figure 4The first phase temperature self-adjusting circuit 220 includes a phase control unit 221 and a second temperature compensation unit 222. The second temperature compensation unit 222 includes a second voltage divider unit 2221, a second diode unit 2222, a second follower 2223 and a second current limiting filter unit 2224. The second voltage divider unit 2221 is connected to the second diode unit 2222 and is grounded through the second diode unit 2222. The input end of the second voltage divider unit 2221 is connected to the second working voltage, the second voltage divider unit 2221 is connected to the input end of the second follower 2223, the output end of the second follower 2223 is connected to the second current limiting filter unit 2224, and is connected to the phase control unit 221 through the second current limiting filter unit 2224. Figure 4 The resistor R4 and the resistor R5 in the circuit form a second voltage divider unit 2221, and the diode DD1 and the diode DD2 form a second diode unit 2222, wherein the diode DD1 and the diode DD2 are both ordinary diodes, and the forward voltage drop of the diode temperature characteristic decreases as the temperature increases. The temperature control function can be realized by selecting a reasonable number of PIN diodes. The input end of the follower U2 is connected to the resistor R4, and the output end of the follower U2 is connected to the resistor R6. The resistor R6 and the inductor L2 form a second current limiting filter unit 2224, and the inductor L2 can reduce the influence of the high-frequency signal of the phase control unit 221. The resistor R4 is connected to a negative voltage. When the temperature increases, the voltage of the diode DD1 and the diode DD2 decreases, so that the input voltage of the follower U2 decreases. Since the resistance value of the resistor R6 remains unchanged, the bias negative voltage provided to the phase control unit 221 decreases, so that the phase of the phase control unit 221 increases, thereby playing a phase compensation role. The number of the first phase temperature self-adjusting circuit 220 can be multiple levels to solve the problem of too large phase change at all temperatures.

[0033] Please continue to refer to Figure 4 , the phase control unit 221 includes a 3dB bridge, a first varactor diode and a second varactor diode, for example Figure 4The device U3, the varactor diode DC1 and the varactor diode DC2 shown in the figure, the first end of the 3dB bridge is connected to a third coupling capacitor, such as capacitor C3, and the signal is received through the third coupling capacitor, the first end of the 3dB bridge is also connected to the output end of the second temperature compensation unit 222, the second end of the 3dB bridge is connected to a fourth coupling capacitor, such as capacitor C4, and the signal is output through the fourth coupling capacitor, the third end and the fourth end of the 3dB bridge are respectively connected to the first varactor diode and the second varactor diode, and the first varactor diode and the second varactor diode are both grounded. Among them, the 3dB bridge, the first varactor diode and the second varactor diode form a reflective phase shifter, when the signal is input from the first end of the 3dB bridge and output from the second end, the third end and the fourth end of the 3dB bridge are both reflection ports, the reflected signals of the third end and the fourth end are reversely offset at the first end, and the signal is all output from the second end, and the impedance of the third end and the fourth end can be changed to achieve phase change, and the greater the negative pressure of the varactor diode, the greater its capacitance. The second temperature compensation unit 222 controls the negative voltage of the first varactor diode and the second varactor diode, thereby achieving phase control of the 3dB bridge.

[0034] In this embodiment, the structure of the second phase temperature self-adjusting circuit 330 is the same as that of the first phase temperature self-adjusting circuit 220, which will not be described again. The first phase temperature self-adjusting circuit 220 and the second phase self-adjusting circuit of this embodiment have simple structures and fewer components, which is conducive to reducing production costs.

[0035] It is worth understanding that, since absolute constancy of gain and phase is difficult to achieve, the accuracy of gain temperature adjustment in this embodiment is consistent with the accuracy of the digitally controlled attenuator 130, and the accuracy of phase temperature adjustment is consistent with the accuracy of the digitally controlled phase shifter 150. After the first calibration of the phased array radar using the RF transceiver assembly of this embodiment, no further calibration is required when the temperature changes, which is conducive to improving the convenience of use.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A radio frequency transceiver component, characterized in that: include: A signal switching module (100) having a first signal end, a second signal end and a third signal end, the first signal end of the signal switching module (100) being used to connect to a radio frequency connector, and the first signal end being capable of switching channels between the second signal end and the third signal end; A transmitting module (200) comprising a first gain temperature self-adjusting circuit (210), a first phase temperature self-adjusting circuit (220) and a first multi-stage amplifier (230) connected in cascade, wherein an input end of the first gain temperature self-adjusting circuit (210) or an input end of the first phase temperature self-adjusting circuit (220) is connected to a third signal end of the signal switching module (100); A receiving module (300) comprising a limiter (310), a second multi-stage amplifier (320), a second phase temperature self-adjusting circuit (330), and a second gain temperature self-adjusting circuit (340) connected in cascade connection, wherein an output end of the second gain temperature self-adjusting circuit (340) or the second phase temperature self-adjusting circuit (330) is connected to a second signal end of the signal switching module (100); The annular isolator (400) is respectively connected to the output end of the first multi-stage amplifier (230) and the input end of the limiter (310), and the annular isolator (400) is also used to connect to an antenna interface.

2. The radio frequency transceiver assembly according to claim 1, characterized in that: The signal switching module (100) comprises a first radio frequency switch (110), and a second radio frequency switch (120) connected in cascade, a digitally controlled attenuator (130), a first amplifier (140), a digitally controlled phase shifter (150), and a third radio frequency switch (160); The first radio frequency switch (110), the second radio frequency switch (120) and the third radio frequency switch (160) all have a first end, a second end and a third end, and the first end is capable of switching a path between the second end and the third end; The first end of the first radio frequency switch (110) is used as the first signal end, and the second end of the first radio frequency switch (110) is connected to the second end of the second radio frequency switch (120); The third end of the second radio frequency switch (120) is used as the second signal end, and the first end of the second radio frequency switch (120) is connected to the digitally controlled attenuator (130); A first end of the third radio frequency switch (160) is connected to the output end of the digitally controlled phase shifter (150), a second end of the third radio frequency switch (160) is connected to the first end of the first radio frequency switch (110), and a third end of the third radio frequency switch (160) is used as the third signal end.

3. The radio frequency transceiver assembly according to claim 1, characterized in that: The first gain temperature self-adjusting circuit (210) comprises a gain control unit (211) and a first temperature compensation unit (212); the first temperature compensation unit (212) comprises a first voltage divider unit (2121), a first diode unit (2122), a first follower (2123) and a first current limiting filter unit (2124); the first voltage divider unit (2121) is connected to the first diode unit (2122) and is grounded through the first diode unit (2122); an input end of the first voltage divider unit (2121) is connected to a first working voltage; the first voltage divider unit (2121) is connected to an input end of the first follower (2123); an output end of the first follower (2123) is connected to the first current limiting filter unit (2124), and is connected to the gain control unit (211) through the first current limiting filter unit (2124).

4. The radio frequency transceiver assembly according to claim 3, characterized in that: The gain control unit (211) comprises a PIN diode attenuator, a first coupling capacitor and a second coupling capacitor. The PIN diode attenuator is respectively connected to a first end of the first coupling capacitor, a first end of the second coupling capacitor and an output end of the first temperature compensation unit (212). The second end of the first coupling capacitor is used as a signal input end, and the second end of the second coupling capacitor is used as a signal output end.

5. The radio frequency transceiver assembly according to claim 3 or 4, characterized in that: The structure of the second gain temperature self-adjusting circuit (340) is the same as that of the first gain temperature self-adjusting circuit (210).

6. The radio frequency transceiver assembly according to claim 1, characterized in that: The first phase temperature self-adjusting circuit (220) comprises a phase control unit (221) and a second temperature compensation unit (222); the second temperature compensation unit (222) comprises a second voltage divider unit (2221), a second diode unit (2222), a second follower (2223) and a second current limiting filter unit (2224); the second voltage divider unit (2221) is connected to the second diode unit (2222) and is grounded via the second diode unit (2222); an input end of the second voltage divider unit (2221) is connected to a second working voltage; the second voltage divider unit (2221) is connected to an input end of the second follower (2223); an output end of the second follower (2223) is connected to the second current limiting filter unit (2224), and is connected to the phase control unit (221) via the second current limiting filter unit (2224).

7. The radio frequency transceiver assembly according to claim 6, characterized in that: The phase control unit (221) comprises a 3dB bridge, a first varactor diode and a second varactor diode, the first end of the 3dB bridge is connected to a third coupling capacitor, and signals are received through the third coupling capacitor, the first end of the 3dB bridge is also connected to the output end of the second temperature compensation unit (222), the second end of the 3dB bridge is connected to a fourth coupling capacitor, and signals are output through the fourth coupling capacitor, the third end and the fourth end of the 3dB bridge are respectively connected to the first varactor diode and the second varactor diode, and the first varactor diode and the second varactor diode are both grounded.

8. The radio frequency transceiver assembly according to claim 6 or 7, characterized in that: The structure of the second phase temperature self-adjusting circuit (330) is the same as that of the first phase temperature self-adjusting circuit (220).

9. A phased array radar, characterized in that: The invention comprises a radio frequency transceiver assembly as described in any one of claims 1 to 8.

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