CN219611781U - 2GHz-18GHz microwave transceiver module - Google Patents

Abstract

The utility model provides a 2GHz-18GHz microwave transceiver module, which comprises a 2GHz down-conversion link, a 2GHz up-conversion link and a local oscillator generation link, wherein the local oscillator generation link is respectively connected with the 2GHz down-conversion link and the 2GHz up-conversion link in a signal manner, and the 2GHz down-conversion link and the 2GHz up-conversion link are both in communication connection with an external baseband processing module. The utility model has the beneficial effects that: the module is more stable and reliable, and the technology is independently controllable. The minimum and lightest army-grade board-grade receiving and transmitting module meeting the environmental requirements in China at present is realized, and the device is based on radio frequency signal simulation test equipment, has certain expansibility and supports customization.

Description

2GHz-18GHz microwave transceiver module

Technical Field

The utility model belongs to the field of radio frequency detection equipment, and particularly relates to a 2GHz-18GHz microwave transceiver module.

Background

At present, domestic advanced equipment such as active phased array radars, comprehensive electronic countermeasure systems and the like is equipped for domestic airplanes, and the system has the technical characteristics of multiple working modes, wide instantaneous bandwidth, high frequency hopping speed, high performance index and the like, and provides higher requirements for comprehensive, miniaturized and standardized development of radio frequency detection equipment. The utility model designs a special 2-18 GHz microwave transceiver module for realizing the transceiving and up-down conversion of the wave band signals based on the miniaturized universal radio frequency detection equipment as a background under the design thought of equipment system level integration, miniaturization, standardization and universalization.

Disclosure of Invention

In view of this, the present utility model is directed to a 2GHz-18GHz microwave transceiver module for implementing the transceiving and up-down conversion of the band signals of the 2GHz-18GHz microwave transceiver module.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the 2GHz-18GHz microwave transceiver module comprises a 2-18 GHz down-conversion link, a 2-18 GHz up-conversion link and a local oscillator generation link, wherein the local oscillator generation link is respectively connected with the 2-18 GHz down-conversion link and the 2-18 GHz up-conversion link through signals, and the 2-18 GHz down-conversion link and the 2-18 GHz up-conversion link are both in communication connection with an external baseband processing module;

the 2-18 GHz down-conversion link comprises a first down-conversion amplifier, a first down-conversion mixer, a first down-conversion filter, a first down-conversion numerical control attenuator, a second down-conversion amplifier, a second down-conversion mixer, a second down-conversion filter, a third down-conversion amplifier, a down-conversion power divider and SDLVA, wherein the output end of the first down-conversion amplifier sequentially passes through the first down-conversion mixer, the first down-conversion filter, the first down-conversion numerical control attenuator, the second down-conversion amplifier, the second down-conversion mixer, the second down-conversion filter, the third down-conversion amplifier and the down-conversion power divider, the down-conversion power divider is respectively in communication connection with an external baseband processing module and the SDLVA, and the first down-conversion mixer and the second down-conversion mixer are in communication connection with a local oscillator.

Further, the 2-18 GHz up-conversion link comprises a first up-conversion filter, a first up-conversion amplifier, a first up-conversion mixer, a second up-conversion filter, a second up-conversion amplifier, a first up-conversion digital control attenuator, a second up-conversion mixer, a third up-conversion filter, a third up-conversion amplifier, a second up-conversion digital control attenuator, a fourth up-conversion amplifier, a third up-conversion digital control attenuator, a fifth up-conversion amplifier, a fourth up-conversion digital control attenuator and a sixth up-conversion amplifier, wherein the input end of the first up-conversion filter is in communication connection with an external baseband processing module, and the output end of the first up-conversion filter is sequentially connected with the first up-conversion amplifier, the first up-conversion mixer, the second up-conversion filter, the second up-conversion amplifier, the first up-conversion digital control attenuator, the second up-conversion mixer, the third up-conversion filter, the third up-conversion amplifier, the second up-conversion digital control attenuator, the fourth up-conversion amplifier, the fourth up-conversion digital control attenuator, the third up-conversion amplifier, the fifth up-conversion amplifier, the fourth up-conversion digital control attenuator and the sixth up-conversion amplifier, and the fourth up-conversion amplifier are in communication connection with the fourth up-conversion amplifier.

Furthermore, the local oscillator generating link comprises a dot frequency signal generating circuit and a frequency agile signal generating circuit, wherein the dot frequency signal generating circuit is in communication connection with the frequency agile signal generating circuit, the dot frequency signal generating circuit is also in communication connection with the second down-conversion mixer and the second up-conversion mixer respectively, and the frequency agile signal generating circuit is also in communication connection with the first down-conversion mixer and the first up-conversion mixer respectively.

Furthermore, the frequency agile signal generating circuit comprises a DDS signal generating circuit, a frequency mixing circuit, a frequency spreading circuit, a frequency doubling circuit and an FPGA chip, wherein the FPGA chip is respectively in communication connection with the DDS signal generating circuit, the frequency mixing circuit and the frequency doubling circuit, the DDS signal generating circuit, the frequency mixing circuit and the frequency spreading circuit are respectively in communication connection with the point frequency signal generating circuit, the DDS signal generating circuit is sequentially in communication connection with the frequency doubling circuit through the frequency mixing circuit and the frequency spreading circuit, and the output end of the frequency doubling circuit is respectively in communication connection with the first down-conversion mixer and the first up-conversion mixer.

Further, the point frequency signal generating circuit comprises a first point frequency power divider, a comb spectrum generator, a first phase-locked loop controller, a second point frequency power divider, a third point frequency power divider, an intermediate frequency local oscillation module, a first point frequency filter, a second point frequency filter, a third point frequency filter, a first point frequency mixer, a fourth point frequency filter, a fifth point frequency filter and a fourth point frequency power divider, wherein the first point frequency power divider is respectively in communication connection with the input end of the comb spectrum generator, the input end of the first phase-locked loop controller and the input end of the intermediate frequency local oscillation module, the output end of the intermediate frequency local oscillation module is in communication connection with the input end of the mixer circuit, the output end of the comb spectrum generator is in communication connection with the input end of the second point frequency power divider, the output end of the second point frequency power divider is respectively in communication connection with the input end of the first point frequency filter, the input end of the second point frequency filter, the input end of the third point frequency filter, the output end of the second point frequency filter is in communication connection with the fourth point frequency filter, the output end of the second point frequency filter is in communication connection with the output end of the third point frequency filter, the third point frequency filter is in communication connection with the third point frequency filter, the output end of the third point frequency filter is in communication connection with the third point frequency filter, the third point frequency filter is in communication with the input end of the third point frequency filter, the third point frequency filter is in communication connection with the third point frequency filter;

the intermediate frequency local oscillation module comprises a second phase-locked loop controller, a third phase-locked loop controller and an SPDT, wherein the second phase-locked loop controller and the third phase-locked loop controller are both in communication connection with the input end of the SPDT, and the output end of the SPDT is in communication connection with the mixing circuit.

Furthermore, the DDS signal generating circuit and the mixer circuit comprise a direct digital frequency synthesizer, a DDS filter, a first MIX mixer, a first single-pole four-throw switch, a first MIX filter, a second MIX filter, a third MIX filter, a fourth MIX filter, a second single-pole four-throw switch and a mixer amplifier, wherein the direct digital frequency synthesizer sequentially passes through the DDS filter and the first MIX mixer to be in communication connection with the input end of the first single-pole four-throw switch, the output end of the first single-pole four-throw switch is respectively in communication connection with the input end of the first MIX filter, the input end of the second MIX filter, the input end of the third MIX filter and the input end of the fourth MIX filter, the output end of the first MIX filter, the output end of the second MIX filter, the output end of the third MIX filter and the output end of the fourth MIX filter are all in communication connection with the input end of the second single-pole four-throw switch, the output end of the second single-pole four-throw switch is respectively in communication connection with the input end of the mixer amplifier, and the output end of the mixer amplifier is in communication connection with the frequency expander circuit.

Further, the spread spectrum circuit comprises a first spread spectrum amplifier, a first spread spectrum mixer, a first spread spectrum single-pole double-throw switch, a first spread spectrum filter, a second spread spectrum single-pole double-throw switch, a second spread spectrum amplifier, a third spread spectrum single-pole double-throw switch, a fourth spread spectrum single-pole double-throw switch, a third spread spectrum amplifier, a third spread spectrum filter, a second spread spectrum mixer, a fifth spread spectrum single-pole double-throw switch, a fourth spread spectrum filter, a fifth spread spectrum filter, a sixth spread spectrum single-pole double-throw switch, a fourth spread spectrum amplifier, wherein the input end of the first spread spectrum amplifier is in communication connection with the output end of the second spot spread spectrum filter, the output end of the first spread spectrum amplifier is in communication connection with the input end of the first spread spectrum single-pole double-throw switch through the first spread spectrum mixer, the input end of the fourth spread spectrum mixer is also in communication connection with the mixer amplifier, the input end of the first spread spectrum single-pole double-throw switch is in communication with the third spread spectrum mixer, the second spread spectrum single-pole double-throw switch is in communication with the input end of the third spread spectrum mixer, the second spread spectrum single-pole double-throw filter is also connected with the input end of the third spread spectrum amplifier, the first spread spectrum single-pole double-throw filter is in communication with the second spread spectrum single-throw filter, the second single-pole double-throw switch is in communication with the output end of the second spread spectrum filter, the second single-pole double-throw filter is connected with the input end of the third spread spectrum filter, the input end of the first spread spectrum single-pole double-throw filter is in communication connection with the input filter, the input filter is in communication connection with the input filter, and the input filter single-pole double-pole single-throw filter is, the fifth spread spectrum filter is connected to the input end of a sixth spread spectrum single-pole double-throw switch, the output end of the sixth spread spectrum single-pole double-throw switch is connected to the input end of a fourth spread spectrum single-pole double-throw switch through a fourth spread spectrum amplifier, and the output end of the fourth spread spectrum single-pole double-throw switch is connected to the frequency doubling circuit.

Further, the frequency doubling circuit comprises a first frequency doubling single pole double throw switch, a first frequency doubling amplifier, a first frequency doubling device, a first frequency doubling filter, a second frequency doubling amplifier, a second frequency doubling device, a second frequency doubling filter, a second frequency doubling single pole double throw switch, a second power divider, a third frequency doubling amplifier and a fourth frequency doubling amplifier, wherein the input end of the first frequency doubling single pole double throw switch is connected with the output end of the fourth frequency doubling single pole double throw switch, the output end of the first frequency doubling single pole double throw switch is respectively connected with the input end of the first frequency doubling amplifier and the input end of the second frequency doubling amplifier, the output end of the first frequency doubling amplifier is sequentially connected to the input end of the second frequency doubling single pole double throw switch through the first frequency doubling device and the first frequency doubling filter, the output end of the second frequency doubling amplifier is sequentially connected to the input end of the second frequency doubling single pole double throw switch through the second frequency doubling device and the second frequency doubling filter, the output end of the second frequency doubling single pole double throw switch is connected to the input end of the second power divider, the output end of the second frequency doubling single pole double throw switch is respectively connected to the input end of the first frequency doubling amplifier and the second frequency doubling amplifier, the output end of the second frequency doubling single pole double throw switch is connected with the input end of the frequency doubling amplifier in communication mode, and the frequency doubling amplifier is connected with the output end of the frequency doubling amplifier.

Compared with the prior art, the 2GHz-18GHz microwave transceiver module has the following advantages:

the 2GHz-18GHz microwave transceiver module is more stable, reliable and technically independently controllable. The minimum and lightest army-grade board-grade receiving and transmitting module meeting the environmental requirements in China at present is realized, and the device is based on radio frequency signal simulation test equipment, has certain expansibility and supports customization.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of a 2-18 GHz transceiver module according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the down-conversion principle between 2GHz and 18GHz according to the embodiment of the utility model;

FIG. 3 is a schematic diagram of the 2GHz-18GHz up-conversion principle according to the embodiment of the utility model;

fig. 4 is a schematic diagram of a local oscillator generation link according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a dot frequency signal generating circuit according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a DDS signal generating and mixing circuit according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of a spread spectrum and mixing circuit according to an embodiment of the utility model.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 7, a 2GHz-18GHz microwave transceiver module is configured to perform radar target signal simulation in a 2GHz-18GHz frequency band, electronic countermeasure radio frequency simulation, and 4GHz instantaneous bandwidth signal generation.

The 2-18 GHz receiving and transmitting module consists of a 2-18 GHz down-conversion link, a 2-18 GHz up-conversion link and a local oscillator generation link, as shown in figure 1.

2-18 GHz down-conversion link

The 2-18 GHz receiving and transmitting module receives an externally input 2-18 GHz radio frequency excitation signal through a wire feeder, outputs an intermediate frequency signal of 0.6-2.6 GHz through digital control attenuation, low noise amplification, radio frequency switching, radio frequency down conversion, intermediate frequency down conversion, AGC and other processes, and provides the intermediate frequency signal to the baseband processing module (namely, the baseband processing unit in FIG. 1, wherein the baseband processing module is in the prior art). Meanwhile, the power is divided into two paths of signals, one path of signals is transmitted to a frequency measuring module (in the prior art) for frequency measurement, and the other path of signals is transmitted to the SDLVA for power detection.

A detailed schematic block diagram is shown in fig. 2.

Firstly, mixing the 2-18 GHz signals with 26-42 GHz of the agile local oscillation signals to obtain 24+/-1 GHz signals; and then filtering and amplifying, carrying out second-stage mixing, obtaining an intermediate frequency signal of 0.6-2.6 GHz (1.6+/-1 GHz) after mixing, and finally outputting the intermediate frequency signal to a baseband processing module for AD sampling after filtering and amplifying. The down-conversion process frequency conversion is shown in table 1.

TABLE 1 Down-conversion frequency conversion Process Table

2-18 GHz up-conversion link

The up-conversion module up-converts the signal generated by the baseband processing module to 2GHz-18GHz for output.

The 2-18 GHz receiving and transmitting module receives the 0.6-2.6 GHz baseband signal output by the baseband processing module, and outputs a 2-18 GHz radio frequency signal through filtering, mixing, amplifying, attenuating, power and the like.

A detailed schematic block diagram is shown in fig. 3.

After 0.6-2.6 GHz output by the baseband processing module enters the 2-18 GHz receiving and transmitting module, the baseband processing module firstly passes through a primary filter and then mixes with a 22.4GHz fixed local oscillator signal to obtain a 23-25 GHz signal, filters and amplifies the 23-25 GHz signal, then mixes with a 26-42 GHz agile local oscillator signal to obtain a 2-18 GHz signal, and three paths of power-division output are performed after filtering, amplifying and power adjustment. The frequency conversion of the up-conversion process is shown in table 2.

Table 2 up-conversion frequency conversion process table

Sequence number	Input frequency	Input local oscillator frequency	Output frequency
				1	0.6～2.6GHz	22.4Hz	24±1GHz
2	24±1GHz	26～42GHz	2～18GHz

Local oscillator generation link

The local oscillation generating link provides fixed local oscillation signals and agile local oscillation signals required by frequency conversion for the up-down frequency conversion link. The local oscillation generating link consists of a point frequency signal generating circuit and a frequency agile signal generating circuit, and the functional principle block diagram is shown in figure 4.

The point frequency signal generating circuit receives an externally input 100MHz reference signal and generates a 22.4GHz fixed local oscillator signal required by up-down conversion and 2.4GHz, 2.7/3.2GHz, 16/17/18GHz and 4GHz point frequency signals required by the agile local oscillator circuit.

The frequency agile signal generating circuit consists of a DDS signal generating circuit, a mixing circuit, a spread spectrum circuit and a frequency doubling circuit, receives various point frequency signals input by the point frequency signal generating circuit, and finally outputs 26 GHz-42 GHz frequency agile local oscillation signals, wherein the frequency step is 1MHz.

Point frequency signal generating circuit

The 100MHz reference signal generates 2.7GHz/3.2GHz, 2.4GHz, 22.4GHz, 4GHz, 16/17/18GHz and other point frequency signals in a phase-locked loop or frequency multiplication mode. The schematic block diagram is shown in fig. 5, where (spdt is a double pole switch).

The specific implementation way and application of each point frequency signal are as follows:

2.7GHz/3.2GHz:100MHz enters an intermediate frequency local oscillation module, provides reference signals for two phase-locked loops (LTC 6946), generates 2.7GHz signals and 3.2GHz signals respectively, and then is switched through a single-pole double-throw switch to be finally output to a frequency mixing circuit to be used as local oscillation signals;

2.4GHz:100MHz provides a reference signal for a phase-locked loop (LTC 6946) to generate a 2.4GHz signal, and then the power is divided into two paths, wherein 1 path of the signal is sent to a DDS signal generating circuit to be used as a sampling clock, and the other 1 path of signal is sent to be mixed with 20 GHz;

22.4GHz: the 100MHz signal enters a comb spectrum generator to generate a 20GHz signal, the 20GHz signal is filtered and mixed with 2.4GHz to obtain a 22.4GHz signal, and the 22.4GHz signal is filtered and divided into two paths to perform up-down frequency conversion to obtain a fixed local oscillation signal;

4GHz, 16/17/18GHz: the 100MHz signal enters a comb spectrum generator to generate 4GHz and 16/17/18GHz signals, and the signals are filtered and then output to a spread spectrum module to be used as local oscillation signals.

Frequency agile signal generating circuit

The frequency agility local oscillation circuit receives various point frequency signals, and finally outputs 26 GHz-42 GHz frequency agility local oscillation signals, and the frequency step is 1MHz. Each circuit module is designed as follows.

DDS signal generating circuit and mixer circuit

The DDS signal generating circuit receives a 2.4GHz sampling clock, and then outputs 300-800 MHz signals according to the control of the FPGA, and the frequency steps by 500KHz. The frequency mixing circuit receives 300-800 MHz and 2.7/3.2GHz signals, mixes the signals, filters the signals to output 3-4 GHz signals, and steps the frequency by 500KHz. The schematic block diagram is shown in fig. 6.

Spread spectrum circuit and frequency multiplication circuit

The spread spectrum circuit receives the 3-4 GHz signals output by the frequency mixing, mixes the 3-4 GHz signals with the 16/17/18GHz signals to generate 13-15 GHz and 19-21 GHz signals, mixes the 13-15 GHz and 19-21 GHz signals with the 4GHz signals to generate 15-19 GHz signals, and finally outputs 13-21 GH signals through switch switching. The frequency of 13-21 GHz is multiplied, filtered and divided in a frequency multiplication module to generate two paths of 26-42 GHz signals, and the frequency step is 1MHz. The functional block diagram is shown in fig. 7.

The module is more stable and reliable, and the technology is independently controllable. The minimum and lightest army-grade board-grade receiving and transmitting module meeting the environmental requirements in China at present is realized, and the device is based on radio frequency signal simulation test equipment, has certain expansibility and supports customization.

The module is a self-grinding module, and a more reliable, stable and miniaturized transceiver module is designed through modeling simulation of circuits such as a 2-18 GHz down-conversion link, a 2-18 GHz up-conversion link, a local oscillator generation link, a point frequency signal generation circuit, a agile frequency signal generation circuit and the like, so that the receiving and transmitting of radio frequency signals in the wave band and the radio frequency signal interaction with other modules in the system are realized.

Example 1

The module is applied to a certain type/multi-type radio frequency signal simulation test device, can realize the receiving and transmitting of signals in a frequency range of 2-18 GHz and up-down conversion of baseband signals in an air feed and line feed mode, and finally realizes the function and performance inspection of equipment such as an aircraft airborne radar, electronic countermeasure, communication identification and the like, and gives consideration to the daily guarantee requirement of an outfield line; meanwhile, the device can be used for solving the testing problems in scientific research, test and production.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a 2GHz-18GHz microwave transceiver module which characterized in that: the system comprises a 2-18 GHz down-conversion link, a 2-18 GHz up-conversion link and a local oscillator generation link, wherein the local oscillator generation link is respectively connected with the 2-18 GHz down-conversion link and the 2-18 GHz up-conversion link through signals, and the 2-18 GHz down-conversion link and the 2-18 GHz up-conversion link are both in communication connection with an external baseband processing module;

the 2-18 GHz down-conversion link comprises a first down-conversion amplifier, a first down-conversion mixer, a first down-conversion filter, a first down-conversion numerical control attenuator, a second down-conversion amplifier, a second down-conversion mixer, a second down-conversion filter, a third down-conversion amplifier, a down-conversion power divider and SDLVA, wherein the output end of the first down-conversion amplifier sequentially passes through the first down-conversion mixer, the first down-conversion filter, the first down-conversion numerical control attenuator, the second down-conversion amplifier, the second down-conversion mixer, the second down-conversion filter, the third down-conversion amplifier and the down-conversion power divider, the down-conversion power divider is respectively in communication connection with an external baseband processing module and the SDLVA, and the first down-conversion mixer and the second down-conversion mixer are in communication connection with a local oscillator.

2. A 2GHz-18GHz microwave transceiver module as in claim 1, wherein: the 2-18 GHz up-conversion link comprises a first up-conversion filter, a first up-conversion amplifier, a first up-conversion mixer, a second up-conversion filter, a second up-conversion amplifier, a first up-conversion numerical control attenuator, a second up-conversion mixer, a third up-conversion filter, a third up-conversion amplifier, a second up-conversion numerical control attenuator, a fourth up-conversion amplifier, a third up-conversion numerical control attenuator, a fifth up-conversion amplifier, a fourth up-conversion numerical control attenuator and a sixth up-conversion amplifier, wherein the input end of the first up-conversion filter is in communication connection with an external baseband processing module, and the output end of the first up-conversion filter sequentially passes through the first up-conversion amplifier, the first up-conversion mixer, the second up-conversion filter, the second up-conversion amplifier, the first up-conversion numerical control attenuator, the second up-conversion mixer, the third up-conversion filter, the third up-conversion amplifier, the second up-conversion attenuator, the fourth up-conversion numerical control amplifier, the fourth up-conversion amplifier, the third up-conversion numerical control attenuator, the fifth up-conversion attenuator, the fourth up-conversion attenuator and the sixth up-conversion amplifier, and the fourth up-conversion amplifier are in communication connection with the second up-conversion amplifier.

3. A 2GHz-18GHz microwave transceiver module as in claim 2, wherein: the local oscillator generating link comprises a point frequency signal generating circuit and a frequency agile signal generating circuit, wherein the point frequency signal generating circuit is in communication connection with the frequency agile signal generating circuit, the point frequency signal generating circuit is also in communication connection with a second down-conversion mixer and a second up-conversion mixer respectively, and the frequency agile signal generating circuit is also in communication connection with the first down-conversion mixer and the first up-conversion mixer respectively.

4. A 2GHz-18GHz microwave transceiver module as in claim 3, wherein: the frequency agile signal generating circuit comprises a DDS signal generating circuit, a frequency mixing circuit, a frequency spreading circuit, a frequency doubling circuit and an FPGA chip, wherein the FPGA chip is respectively in communication connection with the DDS signal generating circuit, the frequency mixing circuit and the frequency doubling circuit, the DDS signal generating circuit, the frequency mixing circuit and the frequency spreading circuit are respectively in communication connection with the point frequency signal generating circuit, the DDS signal generating circuit is sequentially in communication connection with the frequency doubling circuit through the frequency mixing circuit and the frequency spreading circuit, and the output end of the frequency doubling circuit is respectively in communication connection with the first down-conversion mixer and the first up-conversion mixer.

5. The 2GHz-18GHz microwave transceiver module of claim 4, wherein: the point frequency signal generating circuit comprises a first point frequency power divider, a comb spectrum generator, a first phase-locked loop controller, a second point frequency power divider, a third point frequency power divider, an intermediate frequency local oscillation module, a first point frequency filter, a second point frequency filter, a third point frequency filter, a first point frequency mixer, a fourth point frequency filter, a fifth point frequency filter and a fourth point frequency power divider, wherein the first point frequency power divider is respectively in communication connection with the input end of the comb spectrum generator, the input end of the first phase-locked loop controller and the input end of the intermediate frequency local oscillation module, the output end of the intermediate frequency local oscillation module is in communication connection with the input end of the frequency mixing circuit, the output end of the comb spectrum generator is in communication connection with the input end of the second point frequency power divider, the output end of the second point frequency power divider is respectively in communication connection with the input end of the first point frequency filter, the input end of the second point frequency filter, the input end of the third point frequency filter, the output end of the fourth point frequency filter, the output end of the second point frequency filter is in communication connection with the spread spectrum filter, the output end of the third point frequency filter, the third point frequency filter is in communication connection with the output end of the third point frequency mixer, the third point frequency filter is in communication connection with the fourth point frequency mixer, the third point frequency filter and the third point frequency filter;

the intermediate frequency local oscillation module comprises a second phase-locked loop controller, a third phase-locked loop controller and an SPDT, wherein the second phase-locked loop controller and the third phase-locked loop controller are both in communication connection with the input end of the SPDT, and the output end of the SPDT is in communication connection with the mixing circuit.

6. A 2GHz-18GHz microwave transceiver module as in claim 5, wherein: the DDS signal generating circuit and the mixing circuit comprise a direct digital frequency synthesizer, a DDS filter, a first MIX mixer, a first single-pole four-throw switch, a first mixing filter, a second mixing filter, a third mixing filter, a fourth mixing filter, a second single-pole four-throw switch and a mixing amplifier, wherein the direct digital frequency synthesizer is in communication connection with the input end of the first single-pole four-throw switch through the DDS filter and the first MIX mixer in sequence, the output end of the first single-pole four-throw switch is in communication connection with the input end of the first mixing filter, the input end of the second mixing filter, the input end of the third mixing filter and the input end of the fourth mixing filter respectively, the output end of the first mixing filter, the output end of the second mixing filter, the output end of the third mixing filter and the output end of the fourth mixing filter are all in communication connection with the input end of the second single-pole four-throw switch respectively, the output end of the second single-pole four-throw switch is in communication connection with the input end of the mixing amplifier, and the output end of the mixing amplifier is in communication connection with the frequency expanding circuit.

7. The 2GHz-18GHz microwave transceiver module of claim 6, wherein: the spread spectrum circuit comprises a first spread spectrum amplifier, a first spread spectrum mixer, a first spread spectrum single-pole double-throw switch, a first spread spectrum filter, a second spread spectrum single-pole double-throw switch, a second spread spectrum amplifier, a third spread spectrum single-pole double-throw switch, a fourth spread spectrum single-pole double-throw switch, a third spread spectrum amplifier, a third spread spectrum filter, a second spread spectrum mixer, a fifth spread spectrum single-pole double-throw switch, a fourth spread spectrum filter, a fifth spread spectrum filter, a sixth spread spectrum single-pole double-throw switch and a fourth spread spectrum amplifier, wherein the input end of the first spread spectrum amplifier is in communication connection with the output end of the second point spread spectrum filter, the output end of the first spread spectrum amplifier is in communication connection with the input end of the first spread spectrum single-pole double-throw switch through the first spread spectrum mixer, the input end of the first spread spectrum mixer is also in communication connection with the mixer, the output end of the first spread spectrum single-pole double-throw switch is respectively connected to the input end of a second spread spectrum single-pole double-throw switch through a first spread spectrum filter and a second spread spectrum filter, the output end of the second spread spectrum single-pole double-throw switch is connected to the input end of a third spread spectrum single-pole double-throw switch through a second spread spectrum amplifier, the output end of the third spread spectrum single-pole double-throw switch is respectively in communication connection with a fourth spread spectrum single-pole double-throw switch and a third spread spectrum amplifier, the output end of the third spread spectrum amplifier is connected to the input end of a second spread spectrum mixer through a third spread spectrum filter, the input end of the second spread spectrum mixer is also in communication connection with a first spot spectrum filter, the output end of the second spread spectrum mixer is connected to the input end of a fifth spread spectrum single-pole double-throw switch, the output end of the fifth spread spectrum single-pole double-throw switch is respectively connected to the input end of a sixth spread spectrum single-pole double-throw switch through a fourth spread spectrum filter and a fifth spread spectrum single-throw filter, the output end of the sixth spread spectrum single-pole double-throw switch is connected to the input end of the fourth spread spectrum single-pole double-throw switch through a fourth spread spectrum amplifier, and the output end of the fourth spread spectrum single-pole double-throw switch is connected to the frequency doubling circuit.

8. A 2GHz-18GHz microwave transceiver module as in claim 7, wherein: the frequency doubling circuit comprises a first frequency doubling single-pole double-throw switch, a first frequency doubling amplifier, a first frequency doubling device, a first frequency doubling filter, a second frequency doubling amplifier, a second frequency doubling device, a second frequency doubling filter, a second frequency doubling single-pole double-throw switch, a second power divider, a third frequency doubling amplifier and a fourth frequency doubling amplifier, wherein the input end of the first frequency doubling single-pole double-throw switch is connected with the output end of the fourth frequency doubling single-pole double-throw switch, the output end of the first frequency doubling single-pole double-throw switch is respectively connected with the input end of the first frequency doubling amplifier and the input end of the second frequency doubling amplifier, the output end of the first frequency doubling amplifier is sequentially connected to the input end of the second frequency doubling single-pole double-throw switch through the first frequency doubling device and the first frequency doubling filter, the output end of the second frequency doubling amplifier is sequentially connected to the input end of the second frequency doubling single-pole double-throw switch through the second frequency doubling device and the second frequency doubling filter, the output end of the second frequency doubling single-pole double-throw switch is connected to the input end of the second power divider, and the output end of the second frequency doubling single-pole double-throw switch is respectively connected to the input end of the second frequency doubling amplifier and the frequency doubling amplifier, the output end of the second frequency doubling single-pole double-throw switch is connected to the frequency-up-frequency doubling amplifier and the frequency-doubling amplifier.