CN113671446A - Radio frequency receiving and transmitting assembly and phased array radar - Google Patents
Radio frequency receiving and transmitting assembly and phased array radar Download PDFInfo
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- CN113671446A CN113671446A CN202110992614.2A CN202110992614A CN113671446A CN 113671446 A CN113671446 A CN 113671446A CN 202110992614 A CN202110992614 A CN 202110992614A CN 113671446 A CN113671446 A CN 113671446A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
Abstract
The invention discloses a radio frequency transceiver component and a phased array radar, which comprises a signal switching module, a transmitting module, a receiving module and an annular isolator, wherein the signal switching module is connected with a radio frequency connector, the transmitting module comprises a first gain temperature self-adjusting circuit in cascade connection, 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 which are 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 annular isolator is respectively connected with the first multi-stage amplifier and the limiter, and the annular isolator is further connected with an antenna interface. The invention is beneficial to improving the condition that the gain and the phase of the radio frequency transceiving component change along with the temperature.
Description
Technical Field
The invention relates to the technical field of radars, in particular to a radio frequency transceiving component and a phased array radar.
Background
Phased array radars use a large number of small antenna elements arranged to form an antenna array, where the antenna elements contain radio frequency transceiver components. Because the phased array radar works outdoors, the temperature change of the working environment is large, and the transmitting gain, the receiving gain, the transmitting phase and the receiving phase of the radio frequency transmitting and receiving component can change along with the temperature change.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a radio frequency transceiver module and a phased array radar, which can improve the condition that the gain and the phase of the radio frequency transceiver module change along with the temperature.
In a first aspect, a radio frequency transceiver module according to an embodiment of the present invention includes a signal switching module, which has a first signal end, a second signal end, and a third signal end, where 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 a channel between the second signal end and the third signal end; the transmitting module comprises a first gain temperature self-adjusting circuit, a first phase temperature self-adjusting circuit and a first multistage amplifier which are 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 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 which are connected in series, and the output end of 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; and the annular isolator is respectively connected with the output end of the first multistage amplifier and the input end of the amplitude limiter, and is also used for connecting an antenna interface.
The radio frequency transceiving component according to the embodiment of the invention has at least the following beneficial effects:
the first gain temperature self-adjusting circuit and the first phase temperature self-adjusting circuit are added on the transmitting module, and the second gain temperature self-adjusting circuit and the second phase temperature self-adjusting circuit are added on the receiving module, so that the self-adjustment of the gain and the phase of the transmitting signal and the receiving signal can be realized according to the temperature change condition, and the improvement of the condition that the gain and the phase of the radio frequency transceiving component change along with the temperature is facilitated.
According to some embodiments of the invention, the signal switching module comprises a first radio frequency switch and a second radio frequency switch, a digitally controlled attenuator, a first amplifier, a digitally controlled phase shifter and a third radio frequency switch connected in cascade; the first radio frequency switch, the second radio frequency switch and the third radio frequency switch are provided with a first end, a second end and a third end, and the first end can carry out channel switching between the second end and the third end; a first end of the first radio frequency switch is used as the first signal end, and a second end of the first radio frequency switch is connected with a second end of the second radio frequency switch; the third end of the second radio frequency switch is used as the second signal end, and the first end of the second radio frequency switch is connected with the numerical control attenuator; the first end of the third radio frequency switch is connected with the output end of the numerical control phase shifter, the second end of the third radio frequency switch is connected with the first end of the first radio frequency switch, and the third end of the third radio frequency switch is used as the third signal end.
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 division unit, a first diode unit, a first follower and a first current limiting filter unit, the first voltage division unit is connected to the first diode unit and grounded through the first diode unit, an input end of the first voltage division unit is connected to a first operating voltage, the first voltage division unit is connected to an input end of the first follower, and an output end of the first follower is connected to the first current limiting filter unit and connected to the gain control unit through the first current limiting filter unit.
According to some embodiments of the present invention, the gain control unit 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, a second end of the first coupling capacitor is used as a signal input end, and a second end of the second coupling capacitor is used as a signal output end.
According to some embodiments of the invention, the second gain temperature self-adjustment circuit has the same structure as the first gain temperature self-adjustment circuit.
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 division unit, a second diode unit, a second follower and a second current limiting filter unit, the second voltage division unit is connected to the second diode unit and grounded through the second diode unit, an input end of the second voltage division unit is connected to a second operating voltage, the second voltage division unit is connected to an input end of the second follower, and an output end of the second follower is connected to the second current limiting filter unit and connected to the phase control unit through the second current limiting filter unit.
According to some embodiments of the present invention, the phase control unit includes a 3dB bridge, a first varactor and a second varactor, a first end of the 3dB bridge is connected to a third coupling capacitor and receives a signal through the third coupling capacitor, the first end of the 3dB bridge is further connected to an output end of the second temperature compensation unit, a second end of the 3dB bridge is connected to a fourth coupling capacitor and outputs a signal through the fourth coupling capacitor, a third end and a fourth end of the 3dB bridge are respectively connected to the first varactor and the second varactor, and both the first varactor and the second varactor are grounded.
According to some embodiments of the invention, the second phase temperature self-adjustment circuit has the same structure as the first phase temperature self-adjustment circuit.
In a second aspect, a phased array radar according to an embodiment of the present invention includes the above radio frequency transceiving module.
The phased array radar according to the embodiment of the invention has at least the following beneficial effects:
the first gain temperature self-adjusting circuit and the first phase temperature self-adjusting circuit are added on the transmitting module, and the second gain temperature self-adjusting circuit and the second phase temperature self-adjusting circuit are added on the receiving module, so that the self-adjustment of the gain and the phase of the transmitting signal and the receiving signal can be realized according to the temperature change condition, and the improvement of the condition that the gain and the phase of the radio frequency transceiving component change along with the temperature is facilitated.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an RF transceiver module according to an embodiment of the invention;
FIG. 2 is a second schematic diagram of an RF transceiver module according to an embodiment of the invention;
fig. 3 is a schematic circuit diagram of a first gain temperature self-adjusting circuit of the rf transceiver module shown in fig. 1;
fig. 4 is a schematic circuit diagram of a first phase temperature self-adjusting circuit of the rf transceiver module shown in fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, "a plurality" means one or more, "a plurality" means two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and "greater than", "lower than", "inner", etc. are understood as including the present number. If the description of "first", "second", etc. is used for the purpose of distinguishing technical features, it is not intended to indicate or imply relative importance or to implicitly indicate the number of indicated technical features or to implicitly indicate the precedence of the indicated technical features.
In the description of the present invention, unless otherwise specifically limited, the terms "connected", "cascaded", and the like are to be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solutions.
The embodiment discloses a phased array radar which comprises a radio frequency transceiving component. Referring to fig. 1, the Radio Frequency transceiver module includes a signal switching module 100, a transmitter module 200, a receiver 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, Radio Frequency Connector), the first signal end can switch channels between the second signal end and the third signal end, a shared partial channel for transmitting signals and receiving signals can be realized, which is beneficial to simplifying a circuit structure, reducing circuit components, and reducing production cost. The transmitting module 200 includes a first gain temperature self-adjusting circuit 210, a first phase temperature self-adjusting circuit 220 and a first multistage amplifier 230, which are connected in cascade, wherein an input terminal of the first gain temperature self-adjusting circuit 210 is connected to the third signal terminal of the signal switching module 100, and it should be noted that, a cascade order of the first gain temperature self-adjusting circuit 210 and the first phase temperature self-adjusting circuit 220 may be adjusted, so that the input terminal of the first phase temperature self-adjusting circuit 220 is connected to the third signal terminal of the signal switching module 100. The receiving module 300 includes a limiter 310, a second multistage amplifier 320, a second phase temperature self-adjusting circuit 330, and a second gain temperature self-adjusting circuit 340, which are connected in cascade, wherein an output terminal of the second gain temperature self-adjusting circuit 340 is connected to the second signal terminal of the signal switching module 100, and it should be noted that, a cascade order of the second phase temperature self-adjusting circuit 330 and the second gain temperature self-adjusting circuit 340 may be adjusted, so that an output terminal of the second phase temperature self-adjusting circuit 330 is connected to the second signal terminal of the signal switching module 100. The first multistage amplifier 230 and the second multistage amplifier 320 each include a plurality of cascade-connected amplifiers, and in the present embodiment, the first multistage amplifier 230 and the second multistage amplifier 320 each include two stages of cascade-connected amplifiers. The ring isolator 400 is connected to the output terminal of the first multistage amplifier 230 and the input terminal of the limiter 310, respectively, the ring isolator 400 is used to isolate the transmitting signal and the receiving signal to avoid signal crosstalk, and the ring isolator 400 is also used to connect an Antenna interface (ANT) for transmitting or receiving signals.
In this embodiment, when signal transmission is required, a signal enters the signal switching module 100 through the radio frequency connector, the signal switching module 100 performs amplitude modulation and phase shift on the signal and outputs the signal to the transmitting module 200 through the third signal end, and the transmitting module 200 performs gain temperature compensation, phase temperature compensation and signal amplification on the signal and outputs the signal to the ring isolator 400 and the antenna interface for signal transmission; when a signal needs to be received, the signal enters the receiving module 300 through the antenna interface and the ring isolator 400, the receiving module 300 amplifies, phase temperature compensates and gain temperature compensates the signal and outputs the signal to the second signal end of the signal switching module 100, and the signal switching module 100 amplitude modulates and phase shifts the signal and outputs the signal to the radio frequency receiver through the first signal end. The first gain temperature self-adjusting circuit 210 and the first phase temperature self-adjusting circuit 220 are added to the transmitting module 200, and the second gain temperature self-adjusting circuit 340 and the second phase temperature self-adjusting circuit 330 are added to the receiving module 300, so that the self-adjustment of the gain and the phase of the transmitting signal and the receiving signal can be realized according to the temperature change condition, and the condition that the gain and the phase of the radio frequency transceiving component change along with the temperature change condition can be improved.
Referring to fig. 1 and fig. 2, the signal switching module 100 includes a first rf switch 110, 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, which are connected in cascade, where the digitally controlled attenuator 130 is used to adjust an amplification amplitude of a signal to meet an amplitude consistency requirement between output signals, and the digitally controlled phase shifter 150 is used to shift a phase of the signal to implement phased scanning of an 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 perform path switching between the second end and the third end, the first end of the first rf switch 110 is used as a 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 a 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, and the third end of the third rf switch 160 is used as a third signal end of the signal switching module 100. When signals need to be transmitted, the signals sequentially pass through the first radio frequency switch 110, the second radio frequency switch 120, the numerical control attenuator 130, the first amplifier 140, the numerical control phase shifter 150 and the third radio frequency switch 160 to enter the transmitting module 200, and when signals need to be received, the signals sequentially pass through the second radio frequency switch 120, the numerical control attenuator 130, the first amplifier 140, the numerical control phase shifter 150, the third radio frequency switch 160 and the first radio frequency switch 110 after entering from the receiving module 300 and are output through the radio frequency 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 of the first signal terminal of the signal switching module 100 between the second signal terminal and the third signal terminal can be realized.
Referring to fig. 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 division unit 2121, a first diode unit 2122, a first follower 2123 and a first current limiting filter unit 2124, the first voltage division unit 2121 is connected to the first diode unit 2122 and grounded via the first diode unit 2122, an input terminal of the first voltage division unit 2121 is connected to a first operating voltage, the first voltage division unit 2121 is connected to an input terminal of the first follower 2123, and an output terminal of the first follower 2123 is connected to the first current limiting filter unit 2124 and connected to the gain control unit 211 via the first current limiting filter unit 2124. In fig. 3, a resistor R1 and a resistor R2 form a first voltage dividing unit 2121, a diode D1 and a diode D2 form a first diode unit 2122, both the diode D1 and the diode D2 of the present embodiment use common diodes, the forward voltage drop of the diode temperature characteristic decreases with the temperature rise, and a reasonable number of common diodes are selected to realize the temperature control function. The input end of the follower U1 is connected to the resistor R1, the output end of the follower U1 is connected to the current limiting resistor R3, the resistor R3 and the inductor L1 form a first current limiting filter unit 2124, and the inductor L1 can reduce the influence of the high frequency signal of the gain control unit 211. The resistor R1 is connected to a positive voltage, when the temperature rises, the voltage of the diode D1 and the diode D2 drops, so that the input voltage of the follower U1 drops, the current flowing through the gain control unit 211 decreases due to the constant resistance of the resistor R3, the attenuation of the gain control unit 211 decreases, and the effect of compensating the gain is achieved. It should be noted that the number of stages of the first gain temperature self-adjusting circuit 210 may be multiple stages, so as to solve the problem that the full-temperature gain varies too much.
With reference to fig. 3, the gain control unit 211 includes a PIN diode attenuator, a first coupling capacitor and a second coupling capacitor, for example, a PIN diode Dp, a capacitor C1 and a capacitor C2 shown in fig. 3, the PIN diode attenuator is respectively connected to a first terminal of the first coupling capacitor, a first terminal of the second coupling capacitor and an output terminal of the first temperature compensation unit 212, a second terminal of the first coupling capacitor is used as a signal input terminal, and a second terminal of the second coupling capacitor is used as a signal output terminal. The signal is input from the first coupling capacitor, processed by the PIN diode attenuator, and output from the second coupling capacitor, wherein the current flowing through the PIN diode attenuator is controlled by the first temperature compensation unit 212, and therefore, the attenuation amplitude of the PIN diode attenuator can be controlled by the first temperature compensation unit 212, thereby realizing the self-adjustment of the gain.
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, and will not be described in detail herein. The first gain temperature self-adjusting circuit 210 and the second gain temperature self-adjusting circuit of the embodiment have simple structures and few components, and are beneficial to reducing the production cost.
Referring to fig. 4, the 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 division unit 2221, a second diode unit 2222, a second follower 2223 and a second current limiting filter unit 2224, the second voltage division unit 2221 is connected to the second diode unit 2222 and grounded through the second diode unit 2222, an input terminal of the second voltage division unit 2221 is connected to a second operating voltage, the second voltage division unit 2221 is connected to an input terminal of the second follower 2223, and an output terminal of the second follower 2223 is connected to the second current limiting filter unit 2224 and connected to the phase control unit 221 through the second current limiting filter unit 2224. In fig. 4, a resistor R4 and a resistor R5 form a second voltage division unit 2221, and a diode DD1 and a diode DD2 form a second diode unit 2222, wherein the diode DD1 and the diode DD2 both adopt common diodes, the forward voltage drop of the temperature characteristic of the diodes is reduced along with the increase of the temperature, and 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, 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 filtering 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 rises, the voltage of the diode DD1 and the voltage of the diode DD2 decrease, so that the input voltage of the follower U2 decreases, and the bias negative voltage supplied to the phase control unit 221 decreases because the resistance value of the resistor R6 does not change, so that the phase of the phase control unit 221 increases, and the phase compensation effect is achieved. The number of the first phase temperature self-adjusting circuits 220 may be multi-stage to solve the problem that the full temperature phase changes too much.
With reference to fig. 4, the phase control unit 221 includes a 3dB bridge, a first varactor diode, and a second varactor diode, for example, the device U3, the varactor diode DC1, and the varactor diode DC2 shown in fig. 4, a first end of the 3dB bridge is connected to a third coupling capacitor, for example, the capacitor C3, and receives a signal through the third coupling capacitor, the first end of the 3dB bridge is further connected to an output end of the second temperature compensation unit 222, a second end of the 3dB bridge is connected to a fourth coupling capacitor, for example, the capacitor C4, and outputs a signal through the fourth coupling capacitor, a third end and a fourth end of the 3dB bridge are respectively connected to the first varactor diode and the second varactor diode, and both the first varactor diode and the second varactor diode are grounded. The 3dB bridge, the first variable capacitance diode and the second variable capacitance diode form a reflection type phase shifter, when a signal is input from the first end of the 3dB bridge and is output from the second end, the third end and the fourth end of the 3dB bridge are both reflection ports, reflection signals of the third end and the fourth end are reversely offset at the 1 st end, the signal is output from the second end, the phase change can be realized by changing the impedance of the third end and the fourth end, and the larger the negative pressure of the variable capacitance diode is, the larger the capacitance value of the variable capacitance diode is. The phase control of the 3dB bridge can be realized by controlling the negative voltages of the first varactor diode and the second varactor diode through the second temperature compensation unit 222.
In the present 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, and will not be described in detail here. The first phase temperature self-adjusting circuit 220 and the second phase temperature self-adjusting circuit of the embodiment have simple structures and few components, and are beneficial to reducing the production cost.
It should be understood that since absolute constancy of gain and phase is difficult to achieve, the accuracy of gain temperature adjustment in the present 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 phased array radar using the radio frequency transceiving component of the embodiment is calibrated for the first time, the phased array radar does not need to be calibrated when the temperature changes, and the use convenience is improved.
The embodiments of the present invention have been described in detail 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 of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. A radio frequency transceiver module, comprising:
the signal switching module (100) is provided with 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 for being connected with 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 (200) comprising a first gain temperature self-adjusting circuit (210), a first phase temperature self-adjusting circuit (220) and a first multistage amplifier (230) which are 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 with a third signal end of the signal switching module (100);
a receiving module (300) comprising a cascade-connected 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), wherein an output end of the second gain temperature self-adjusting circuit (340) or the second phase temperature self-adjusting circuit (330) is connected with a second signal end of the signal switching module (100);
and the annular isolator (400) is respectively connected with the output end of the first multistage amplifier (230) and the input end of the amplitude limiter (310), and the annular isolator (400) is also used for connecting an antenna interface.
2. The radio frequency transceiver component of claim 1, wherein the signal switching module (100) comprises a first radio frequency switch (110) and a second radio frequency switch (120), a digitally controlled attenuator (130), a first amplifier (140), a digitally controlled phase shifter (150) and a third radio frequency switch (160) connected in cascade;
the first radio frequency switch (110), the second radio frequency switch (120) and the third radio frequency switch (160) each have a first terminal, a second terminal and a third terminal, the first terminal being capable of switching path between the second terminal and the third terminal;
a first terminal of the first radio frequency switch (110) is used as the first signal terminal, and a second terminal of the first radio frequency switch (110) is connected with a second terminal 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 with the numerical control attenuator (130);
a first end of the third radio frequency switch (160) is connected with an output end of the numerical control phase shifter (150), a second end of the third radio frequency switch (160) is connected with a 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 component of claim 1, wherein the first gain temperature self-adjustment circuit (210) comprises a gain control unit (211) and a first temperature compensation unit (212), the first temperature compensation unit (212) includes a first voltage division unit (2121), a first diode unit (2122), a first follower (2123), and a first current limiting filter unit (2124), the first voltage division unit (2121) is connected with the first diode unit (2122), and is grounded through the first diode unit (2122), the input end of the first voltage division unit (2121) is connected with a first working voltage, the first voltage division unit (2121) is connected with an input end of the first follower (2123), the output end of the first follower (2123) is connected with the first current-limiting filtering unit (2124), and is connected with the gain control unit (211) through the first current limiting filtering unit (2124).
4. The radio frequency transceiver component of claim 3, wherein the gain control unit (211) comprises a PIN diode attenuator, a first coupling capacitor and a second coupling capacitor, the PIN diode attenuator is connected to a first terminal of the first coupling capacitor, a first terminal of the second coupling capacitor and an output terminal of the first temperature compensation unit (212), respectively, a second terminal of the first coupling capacitor is used as a signal input terminal, and a second terminal of the second coupling capacitor is used as a signal output terminal.
5. The radio frequency transceiver component of claim 3 or 4, wherein the second gain temperature self-adjusting circuit (340) has the same structure as the first gain temperature self-adjusting circuit (210).
6. The radio frequency transceiver component of claim 1, wherein 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 division unit (2221), a second diode unit (2222), a second follower (2223) and a second current limiting filter unit (2224), the second voltage division unit (2221) is connected with the second diode unit (2222), and is grounded through the second diode unit (2222), the input end of the second voltage division unit (2221) is connected with a second working voltage, the second voltage division unit (2221) is connected with the input end of the second follower (2223), the output end of the second follower (2223) is connected with the second current-limiting filtering unit (2224), and is connected with the phase control unit (221) through the second current limiting filtering unit (2224).
7. The radio frequency transceiver component of claim 6, wherein the phase control unit (221) comprises a 3dB bridge, a first varactor and a second varactor, a first end of the 3dB bridge is connected to a third coupling capacitor and receives signals through the third coupling capacitor, the first end of the 3dB bridge is further connected to an output end of the second temperature compensation unit (222), a second end of the 3dB bridge is connected to a fourth coupling capacitor and outputs signals through the fourth coupling capacitor, a third end and a fourth end of the 3dB bridge are respectively connected to the first varactor and the second varactor, and both the first varactor and the second varactor are grounded.
8. The radio frequency transceiver component of claim 6 or 7, wherein the second phase temperature self-adjusting circuit (330) has the same structure as the first phase temperature self-adjusting circuit (220).
9. A phased array radar comprising a radio frequency transceiver module as claimed in any one of claims 1 to 8.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384479A (en) * | 2021-12-21 | 2022-04-22 | 广东纳睿雷达科技股份有限公司 | Phased array radar amplitude and phase calibration method and device and storage medium |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384479A (en) * | 2021-12-21 | 2022-04-22 | 广东纳睿雷达科技股份有限公司 | Phased array radar amplitude and phase calibration method and device and storage medium |
| CN114384479B (en) * | 2021-12-21 | 2023-03-24 | 广东纳睿雷达科技股份有限公司 | Phased array radar amplitude and phase calibration method and device and storage medium |
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