Microwave module and microwave system

Abstract

The application discloses a microwave module and a microwave system, and relates to the field of radio frequency technology.The microwave module comprises a harmonic generator, the harmonic generator is used for converting a fundamental frequency signal into a multiple harmonic signal; a first switch chip, an input end of the first switch chip is electrically connected with an output end of the harmonic generator, and the first switch chip is used for connecting the input end of the first switch chip with a first target output end of a plurality of output ends of the first switch chip in response to a first control instruction; a plurality of first filter modules, input ends of the plurality of first filter modules are electrically connected with the plurality of output ends of the first switch chip in one-to-one correspondence; the first filter module is used for filtering the received multiple harmonic signal to obtain a first target frequency signal, and the center frequencies of the plurality of first filter modules are different; and a second switch chip, a plurality of input ends of the second switch chip are electrically connected with the input ends of the plurality of first filter modules in one-to-one correspondence.According to the embodiment of the application, the frequency range of the microwave module can be effectively optimized.

Description

Technical Field

[0001] This application belongs to the field of radio frequency technology, and in particular relates to a microwave module and a microwave system. Background Technology

[0002] In the use of receivers and transmitters, in order to perform frequency mixing processing on received or transmitted signals of different frequencies, it is usually necessary to use a microwave module to generate a local oscillator signal for the frequency range corresponding to the received or transmitted signals to be processed. Microwave modules in related technologies mainly use DACs (Digital-to-Analog Converters) to generate local oscillator signals.

[0003] However, with the development of communication technology, the frequency range of the received and transmitted signals that need to be processed has also changed. The frequency range of signals that DAC-based microwave modules can process is limited, resulting in poor frequency range selectivity in current microwave modules. Utility Model Content

[0004] This application provides a microwave module and microwave system that can effectively optimize the frequency range of the microwave module.

[0005] In a first aspect, embodiments of this application provide a microwave module, the microwave module comprising: A harmonic generator is used to receive the input fundamental frequency signal and convert it into multiple harmonic signals. The first switching chip has its input terminal electrically connected to the output terminal of the harmonic generator. The first switching chip is used to respond to a first control command and connect its input terminal to a first target output terminal among the multiple output terminals of the first switching chip. Multiple first filtering modules are provided, with their input terminals electrically connected one-to-one to the multiple output terminals of the first switching chip. The first filtering modules are used to filter the received multiple harmonic signals to obtain the first target frequency signal. The center frequencies of the multiple first filtering modules are different. The second switch chip has multiple input terminals that are electrically connected one-to-one with the input terminals of multiple first filter modules. The second switch chip is used to respond to the second control command to connect the first target input terminal among the multiple input terminals of the second switch chip with the output terminal of the second switch chip, so as to output the first target frequency signal.

[0006] In some possible implementations, at least one first filtering module includes: The input terminal of the first-stage filter is electrically connected to the corresponding output terminal of the first-stage switching chip. The second-stage filter has its input terminal electrically connected to the output terminal of the first-stage filter, and its output terminal electrically connected to the corresponding input terminal in the second switching chip. The first-stage and second-stage filters are used to perform graded filtering of multiple harmonic signals.

[0007] In some possible implementations, at least one first filtering module further includes: The attenuator has its input terminal electrically connected to the output terminal of the first-stage filter, and its output terminal electrically connected to the input terminal of the second-stage filter. The output terminal of the first-stage filter is also electrically connected to the input terminal of the second-stage filter through the attenuator. An attenuator is used to reduce the standing wave of the frequency signal transmitted from the first-stage filter to the second-stage filter.

[0008] In some possible implementations, the microwave module further includes: The first amplifier has its output terminal electrically connected to the input terminal of the harmonic generator. The first amplifier is used to receive the input fundamental frequency signal and adjust the power of the fundamental frequency signal before outputting it. The harmonic generator is used to receive the power-adjusted baseband signal and convert it into multiple harmonic signals.

[0009] In some possible implementations, the microwave module further includes: The second amplifier has its input terminal electrically connected to the output terminal of the second switching chip. The second amplifier is used to receive the first target frequency signal and adjust the power of the first target frequency signal before outputting it.

[0010] In some possible implementations, the microwave module further includes: A power divider, the input terminal of which is electrically connected to the output terminal of a harmonic generator, and the first output terminal of at least two output terminals of the power divider is electrically connected to the input terminal of a first switching chip; The power divider is used to distribute multiple harmonic signals to at least two outputs.

[0011] In some possible implementations, the microwave module further includes: The third switch chip has its input terminal electrically connected to the second output terminal of at least two output terminals of the power divider. The third switch chip is used to connect the input terminal of the third switch chip to the second target output terminal of at least one output terminal of the third switch chip in response to a third control command. At least one second filtering module is provided, and the input terminal of the at least one second filtering module is electrically connected to at least one output terminal of the third switching chip in a one-to-one correspondence; the second filtering module is used to filter the received multiple harmonic signals to obtain a second target frequency signal, wherein the center frequencies of the at least one second filtering module are different. The fourth switch chip has at least one input terminal electrically connected to at least one input terminal of the second filter module. The fourth switch chip is used to respond to the fourth control command to connect the second target input terminal of at least one input terminal of the fourth switch chip with the output terminal of the fourth switch chip to output the second target frequency signal.

[0012] In some possible implementations, the microwave module further includes: The third amplifier has its input terminal electrically connected to the third output terminal of at least two output terminals of the power divider, and its output terminal is electrically connected to the harmonic signal detection port. The third amplifier is used to adjust the power of the multiple harmonic signals and transmit the power-adjusted multiple harmonic signals to the harmonic signal detection port for detection.

[0013] In some possible implementations, the frequency range of the multiple harmonic signals generated by the harmonic generator covers the frequency range of the S-band; The center frequencies of multiple first filter modules are within the S-band frequency range.

[0014] Based on the same inventive concept, in a second aspect, embodiments of this application provide a microwave system that includes a microwave module as described in any of the foregoing embodiments of this application.

[0015] As described above, the microwave module and system provided in this application, through a combination of a harmonic generator, a first switching chip, multiple first filtering modules, and a second switching chip, can generate multiple signals of specific frequencies from a single baseband signal. The first switching chip, multiple first filtering modules, and the second switching chip then select a first target frequency signal for output. Compared to signal generation based on a DAC in related technologies, this application effectively converts the baseband signal into a comb spectrum signal using a harmonic generator, and achieves rapid frequency selection through the first switching chip, the second switching chip, and the corresponding frequency band first filtering module. This significantly optimizes the signal generation method, reducing chip cost and logic programming time when using a DAC, and expanding the frequency range usable by the microwave module. This microwave module in this application, based on a harmonic generator design, can cover a wider frequency band, especially for high-frequency applications, to meet the development needs of communication technology. Furthermore, the design in this embodiment of the application has high flexibility and frequency selectivity. The first and second switching chips in the microwave module can also be selected from switching chips with faster switching times, which is suitable for application scenarios that require fast frequency switching and multiple frequency selection. It can better meet the needs of wider frequency bands and more complex applications, and realize the optimization of the frequency range of the microwave module. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a microwave module provided in one embodiment of this application; Figure 2 This is a schematic diagram showing the correspondence between harmonic power and harmonic order of a harmonic generator provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a microwave module provided in another embodiment of this application; Figure 4 This is a bandwidth diagram of a filter provided in one embodiment of this application; Figure 5 This is a working bandwidth diagram of a filter provided in another embodiment of this application; Figure 6 This is a working bandwidth diagram of a filter provided in another embodiment of this application; Figure 7 This is a working bandwidth diagram of a filter provided in another embodiment of this application; Figure 8 This is a schematic diagram of the structure of a microwave module provided in another embodiment of this application; Figure 9 This is a schematic diagram of the structure of a microwave module provided in another embodiment of this application; Figure 10 This is a schematic diagram of the structure of an amplifier provided in one embodiment of this application; Figure 11 This is a schematic diagram of the structure of a microwave module provided in another embodiment of this application; Figure 12 This is a schematic diagram of the structure of a microwave module provided in another embodiment of this application; Figure 13 This is a schematic diagram of the structure of a microwave module provided in another embodiment of this application; Figure 14 This is a schematic diagram of the overall dimensions of a microwave module provided in one embodiment of this application; Figure 15 This is a schematic diagram of a finished microwave module provided in one embodiment of this application; Figure 16 This is a schematic diagram of the structure of a microwave system provided in an embodiment of this application.

[0018] In the attached image: 100. Microwave module; 10. Harmonic generator; 20. First switch chip; 30. First filter module; 40. Second switch chip; 50. Power divider; 60. Third switch chip; 70. Second filter module; 80. Fourth switch chip; 31. First-stage filter; 32. Second-stage filter; 33. Attenuator; OP1. First amplifier; OP2. Second amplifier; OP3. Third amplifier; OP4. Fourth amplifier; out1. First output terminal; out2. Second output terminal; out3. Third output terminal; TP. Harmonic signal detection port; 1000. Microwave system. Detailed Implementation

[0019] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0021] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] In the embodiments of this application, the term "electrical connection" can refer to a direct electrical connection between two components, or it can refer to an electrical connection between two components via one or more other components.

[0023] In the embodiments of this application, the first node, the second node, and the third node are defined only for the convenience of describing the circuit structure, and the first node, the second node, and the third node are not actual circuit units.

[0024] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0025] Before describing the technical solutions provided in the embodiments of this application, in order to facilitate understanding of the embodiments of this application, this application first specifically explains the problems existing in the related technologies: In this application, a comb spectrum signal is a signal containing multiple equally spaced frequency components, whose spectrum resembles the teeth of a comb. Comb spectrum signals have a wide bandwidth, covering multiple frequency points. Comb spectrum signals can be applied in applications such as frequency measurement, frequency calibration, and multi-carrier communication.

[0026] Specifically, the inventors of this application have discovered that in conventional microwave systems, the receiver and transmitter are the core modules. The receiver's main function is to receive the useful signal and, through mixing with the local oscillator signal, convert the higher-frequency signal into a lower-frequency signal for input to the baseband for signal processing. The transmitter is responsible for mixing the lower-frequency signal processed by the baseband with the local oscillator signal, and finally transmitting the higher-frequency signal. This operating mode is widely used in various communication systems.

[0027] In the use of receivers and transmitters in the aforementioned microwave systems, it is typically necessary to generate a local oscillator signal (LOS) using a microwave module, based on the frequency range corresponding to the received or transmitted signal to be processed. The LOS can generate and freely switch between multiple frequencies to meet the requirements of the microwave system. Therefore, the microwave module capable of outputting a comb spectrum signal plays a crucial role in the composition of a microwave system, as it characterizes the bandwidth range of frequency adjustment and the frequency switching time of the microwave system.

[0028] Current microwave systems utilize various frequency bands, such as L-band (1-2 GHz), S-band (2-4 GHz), C-band (4-8 GHz), X-band (8-12 GHz), Ku-band (12-18 GHz), K-band (18-27 GHz), and Ka-band (27-40 GHz). Optimizing the frequency range and structural performance of microwave modules is crucial for meeting the demands of higher frequency bands and more complex applications in different scenarios. The choice of different bands varies. For example, the S-band, due to its good propagation performance and relatively suitable bandwidth, has wide applications in civilian and scientific fields, such as satellite communication, radar systems, and navigation systems. Therefore, the demand for microwave modules used in bands such as the S-band is increasing.

[0029] However, further research by the inventors of this application revealed that, with the development of communication technology, during the evolution of 2G, 3G, and 4G, the main application frequencies of microwave modules were concentrated in lower frequency bands, and the structural design of microwave modules was only suitable for specific operating frequency ranges. In today's era, in order to meet the wider frequency bands and more complex application requirements of bands such as the aforementioned S-band, optimizing the frequency range and structural performance of microwave modules capable of generating comb spectrum signals has become crucial.

[0030] Currently, microwave modules in related technologies mainly include a DAC (Digital Converter), which converts digital signals into analog signals to generate the local oscillator signal, modulation signal, or other reference signal required by the microwave module. In existing solutions, because the signal generated by the DAC is a point-frequency signal, the spectrum of which is concentrated at a single frequency point, it cannot directly provide multiple discrete frequency components, resulting in a very narrow bandwidth for the point-frequency signal. This limits the frequency range coverage of existing microwave modules. Therefore, current microwave modules suffer from poor frequency range selectivity, and the frequency range of microwave modules still needs optimization. Furthermore, the aforementioned existing microwave modules also suffer from high DAC chip costs and long logic programming times when using DACs.

[0031] Furthermore, the inventors of this application have also discovered that the designs of most existing microwave modules capable of generating comb spectrum signals have the following obvious defects: (1) Most existing microwave modules have a delay during frequency switching, which cannot meet the requirements for rapid frequency switching. Therefore, they cannot meet the current user's requirement for rapid frequency switching of microwave systems, thus limiting the overall performance of the system. (2) Due to the design of most microwave modules capable of generating comb spectrum signals in microwave systems, when using a single signal, existing microwave modules have poor suppression of other useless signals, resulting in increased spurious signal interference, affecting signal quality, and potentially reducing the reliability and anti-interference capability of the system. Therefore, they cannot meet the user's requirements for spurious performance of microwave systems. (3) The design of many existing microwave modules has not fully considered the miniaturization requirements, resulting in a large module size. In modern applications, especially in portable devices and miniaturized systems, size and weight are important considerations, and existing microwave modules are difficult to meet these requirements.

[0032] In view of the above, in order to solve the above technical problems one by one, the embodiments of this application provide a microwave module and a microwave system that can better meet the application requirements of wider frequency bands and more complex applications, and optimize the frequency range and structural performance of the microwave module.

[0033] The microwave module provided in the embodiments of this application will be described below.

[0034] Figure 1 This is a schematic diagram of the structure of a microwave module 100 provided in one embodiment of this application. Figure 1 As shown, this application embodiment provides a microwave module 100, such as... Figure 1 As shown, the microwave module 100 in this embodiment includes: Harmonic generator 10 is used to receive the input fundamental frequency signal and convert the fundamental frequency signal into multiple harmonic signals; The first switch chip 20 has its input terminal electrically connected to the output terminal of the harmonic generator 10. The first switch chip 20 is used to respond to a first control command to connect the input terminal of the first switch chip 20 with the first target output terminal among the multiple output terminals of the first switch chip 20. Multiple first filter modules 30 are provided, and the input terminals of the multiple first filter modules 30 are electrically connected to the multiple output terminals of the first switch chip 20 in a one-to-one correspondence. The first filter modules 30 are used to filter the received multiple harmonic signals to obtain the first target frequency signal. The center frequencies of the multiple first filter modules 30 are different. The second switch chip 40 has multiple input terminals that are electrically connected to the input terminals of multiple first filter modules 30 in a one-to-one correspondence. The second switch chip 40 is used to respond to the second control command to connect the first target input terminal among the multiple input terminals of the second switch chip 40 with the output terminal of the second switch chip 40 to output the first target frequency signal.

[0035] In this application, the harmonic generator 10 is used to convert an input fundamental frequency signal into a multiple harmonic signal containing multiple harmonic components, for generating a comb spectrum signal. The multiple harmonic signal contains multiple frequency components that are integer multiples of the input fundamental frequency signal. The fundamental frequency signal is, for example, a 250MHz signal. The multiple harmonic signals are, for example, the 1st to 49th harmonics of the fundamental frequency signal.

[0036] The first switch chip 20 can select between its input terminal and any one of its multiple output terminals, and the second switch chip 40 can select between any one of its multiple input terminals and its output terminal. The first switch chip 20 and / or the second switch chip 40 can be selected as switch chips with high switching speeds, thereby facilitating rapid frequency switching.

[0037] It is understood that the first switch chip 20 and / or the second switch chip 40 should be interpreted broadly. They can be switch chips composed of discrete circuits built from multiple electronic components (such as resistors, switches, capacitors, diodes, etc.) or switch chips composed of integrated circuits.

[0038] The aforementioned first control instruction can come from an external controller such as a microcontroller or an FPGA (Field-Programmable Gate Array), and is used to dynamically select the first target output terminal connected to the input terminal of the first switch chip 20, and to dynamically select the first filter module 30 required for the subsequent stage. The output terminals of the first switch chip 20, excluding the first target output terminal, can be disconnected from the input terminals of the first switch chip 20 in this operation.

[0039] The aforementioned second control command can also originate from an external controller such as a microcontroller or FPGA, used to dynamically select the first target input terminal connected to the output terminal of the second switch chip 40, thereby dynamically selecting the desired output frequency signal. The input terminals of the second switch chip 40, excluding the first target input terminal, can be disconnected from its output terminal in this operation. In practical applications, the external controller can select different switch control signals according to different scenarios to control harmonic outputs of different frequencies.

[0040] The first filtering module 30 described above can use a high-order filter or a bandpass filter to improve frequency selectivity. In some embodiments, the first filtering module 30 can also be a combined filtering structure of multiple cascaded filters, thereby improving filtering accuracy and reliability, and enhancing the suppression effect on spurious signals.

[0041] Furthermore, each first filter module 30 can be designed with a different center frequency to selectively pass specific harmonic frequencies. In some more specific applications, the center frequency of each first filter module 30 can be a different sub-band within the S-band. By selecting multiple commonly used frequency points as the center frequencies of the multiple first filter modules 30, it is helpful to meet the user's signal output requirements.

[0042] The aforementioned first target frequency signal is a specific frequency signal after filtering, specifically related to the center frequency of the first filtering module 30 selected by the first control command and the second control command.

[0043] In a specific implementation, the harmonic generator 10 converts the input fundamental frequency signal into a multiple harmonic signal containing multiple harmonic components to generate a comb spectrum signal. For example, the harmonic generator 10 is a SICG257SP3 model. When the fundamental frequency of the input signal is 250MHz, the relationship between the harmonic power and harmonic order output by the harmonic generator 10 is as follows: Figure 2 As shown, by Figure 2 It can be seen that the harmonic order range of the harmonic generator 10 can range from 1 to 49. Since the fundamental frequency of the input signal of the microwave module 100 is 250MHz, the harmonic generator 10 can output a frequency range of 250MHz to 9.8GHz. This frequency range can cover the S-band mentioned above, and when the signal passes through the harmonic generator 10, it realizes the function of generating a comb spectrum signal.

[0044] After the harmonic generator 10 generates the aforementioned multiple harmonic signals, it needs to output the required single signal under different scenarios. Therefore, the output terminal of the harmonic signal module is electrically connected to the input terminal of the first switch chip 20. Under the control of the first control command, the first switch chip 20 connects its input terminal to the first target output terminal among its multiple output terminals. The multiple harmonic signals are transmitted from the input terminal of the first switch chip 20 to the first target output terminal of the first switch chip 20, and then to the input terminal of the first filter module 30 corresponding to the first target output terminal.

[0045] Next, the first filtering module 30 filters the multiple harmonic signals using its own center frequency, suppressing unwanted signals in the multiple harmonic signals to obtain the first target frequency signal. Under the control of the second control command, the second switching chip 40 connects the first target input terminal, which is connected to the aforementioned first filtering module 30, to the output terminal of the second switching chip 40. In this way, the first target frequency signal obtained through specific filtering can be output through the output terminal of the second switching chip 40, and can subsequently participate in signal transmission and modulation. The specific function of this first target frequency signal may depend on the design goals and system requirements of the microwave module 100, and is not limited here.

[0046] In some application examples of this application, considering that most microwave modules 100 capable of generating comb spectrum signals have long switching times and do not achieve fast frequency switching, they cannot meet the current user demand for fast frequency switching in microwave systems. Therefore, the first switch chip 20 and / or the second switch chip 40 are selected, for example, as the HMC241ALP3E, operating from 100MHz to 4GHz, with a switching time of 30~100ns. By selecting a switch chip with a fast switching speed to meet the requirement of rapid frequency switching, the microwave module 100 achieves the function of fast frequency switching.

[0047] It should be added that, by combining the switching chip port selection functions of the first switching chip 20 and the second switching chip 40, the port integration of the front-end harmonic generator 10 and the output of the rear stage is fully realized in this application, which avoids the waste of port resources and the duplication of device settings caused by the need to connect ports between the front and rear stages, and avoids the increase in cost and module size.

[0048] This application provides a microwave module 100 that, through a combination of a harmonic generator 10, a first switching chip 20, multiple first filtering modules 30, and a second switching chip 40, can generate multiple signals of specific frequencies from a single baseband signal. The first switching chip 20, multiple first filtering modules 30, and the second switching chip 40 select a first target frequency signal for output. Compared to DAC-based signal generation in related technologies, this application effectively converts the baseband signal into a comb spectrum signal using the harmonic generator 10, and achieves rapid frequency selection through the first switching chip 20, the second switching chip 40, and the corresponding frequency band first filtering modules 30. This significantly optimizes the signal generation method, reducing chip cost and logic programming time when using a DAC, and expanding the frequency range usable by the microwave module 100.

[0049] The microwave module 100 in this embodiment, based on the harmonic generator 10, can cover a wider frequency band, especially for high-frequency applications, to meet the development needs of communication technology. Furthermore, this design offers high flexibility and frequency selectivity. The first switching chip 20 and the second switching chip 40 in the microwave module 100 can also be selected from those with faster switching times, making it suitable for applications requiring rapid frequency switching and multiple frequency selection. This better meets the needs of wider frequency bands and more complex applications, thus optimizing the frequency range of the microwave module 100.

[0050] Optionally, according to some embodiments of this application, in conjunction with Figure 3 As shown, considering that the design of microwave modules 100 in most microwave systems, which are capable of generating comb-spectrum signals, results in poor suppression of other unwanted signals when using a single signal, thus failing to meet the user's requirements for spurious emission performance in microwave systems. Therefore, at least one first filter module 30 may include: The first-stage filter 31 has its input terminal electrically connected to the corresponding output terminal in the first switch chip 20. The second-stage filter 32 has its input terminal electrically connected to the output terminal of the first-stage filter 31, and its output terminal electrically connected to the corresponding input terminal of the second switch chip 40. The first-stage filter 31 and the second-stage filter 32 are used to perform graded filtering on multiple harmonic signals.

[0051] In the same first filtering module 30, the center frequencies of the first-stage filter 31 and the second-stage filter 32 can be the same; in different first filtering modules 30, the center frequencies of the first-stage filter 31 and the second-stage filter 32 can be different. Referring to the foregoing examples, in some practical applications, each filter stage corresponds to an S-band frequency selection channel with a different center frequency, and the center frequencies of each filter cover different sub-frequency bands within the S-band.

[0052] In a specific application example, the microwave module 100 uses multiple filters to select the useful frequency, namely filter 1, filter 2, filter 3, and filter 4. Filters 1, 2, 3, and 4 each belong to different first-stage filtering modules 30. The filters can be either the first-stage filter 31 or the second-stage filter 32 mentioned above. The corresponding filter models are TA1187B, TA2472A, TA2820AA3110, and TK0003AA2862.

[0053] The TA1187B has a center frequency of 2235MHz, and its operating bandwidth is shown in the figure below. Figure 4 As shown. The center frequency of the TA2472A is 2500MHz, and its operating bandwidth is shown in the figure. Figure 5 As shown. The center frequency of the TA2820AA3110 is 2725MHz, and its operating bandwidth is shown in the figure. Figure 6 As shown; the center frequency of TK0003AA2862 is 3500MHz, and its operating bandwidth is as follows. Figure 7 As shown, by Figure 4 , Figure 5 , Figure 6 as well as Figure 7 It can be seen that the operating frequency bands of the above filters all belong to the S-band.

[0054] In this embodiment, considering that in practical applications, a single filtering step may not be sufficient to completely suppress spurious signals, a multi-stage filter structure is employed to optimize signal processing, thereby improving signal quality.

[0055] Specifically, at least one first filtering module 30 includes two sets of filters: a first-stage filter 31 and a second-stage filter 32. The input terminal of the first-stage filter 31 is electrically connected to the corresponding output terminal of the first switching chip 20, while the input terminal of the second-stage filter 32 is electrically connected to the output terminal of the first-stage filter 31, and its output terminal is further electrically connected to the corresponding input terminal of the second switching chip 40.

[0056] In this way, the hierarchical filtering design of this embodiment allows the two-stage filter to process multiple harmonic signals step by step, thereby more effectively selecting useful signals and suppressing unwanted signals. This not only improves the flexibility of signal processing but also enhances the selectivity for signals of specific frequencies. Through the synergistic effect of the multi-stage filter, the frequency characteristics of the signal can be controlled more precisely, improving the ability to suppress unwanted signals.

[0057] Therefore, in this embodiment, multi-stage filtering is used to improve filter design and signal processing technology, thereby enhancing the ability to suppress unwanted signals, reducing spurious signal interference, and improving signal quality, thus better meeting the stringent requirements of microwave systems for spurious performance indicators.

[0058] It should be added that the first filtering module 30 may also include multiple filters in series, such as third-stage filters, fourth-stage filters, and other filters. These filters are cascaded in series to further improve the filtering accuracy of the first filtering module 30.

[0059] Optionally, according to some embodiments of this application, such as Figure 8 As shown, in the design of the microwave module 100, in order to further optimize signal transmission performance and improve system reliability, at least one first filter module 30 may further include: Attenuator 33, the input terminal of attenuator 33 is electrically connected to the output terminal of the first-stage filter 31, the output terminal of attenuator 33 is electrically connected to the input terminal of the second-stage filter 32, and the output terminal of the first-stage filter 31 is electrically connected to the input terminal of the second-stage filter 32 through attenuator 33; Attenuator 33 is used to reduce the standing wave of the frequency signal transmitted from the first-stage filter 31 to the second-stage filter 32.

[0060] In this embodiment, at least one first filtering module 30 may further include an attenuator 33. The input terminal of the attenuator 33 is electrically connected to the output terminal of the first-stage filter 31, while its output terminal is electrically connected to the input terminal of the second-stage filter 32. This allows the output signal of the first-stage filter 31 to pass through the attenuator 33 before entering the second-stage filter 32, thereby helping to optimize the power balance of the signal and significantly improving the signal transmission characteristics.

[0061] Specifically, attenuator 33 can be used to optimize the standing wave characteristics of the signal. By adding attenuator 33 between the first-stage filter 31 and the second-stage filter 32 to optimize the standing wave, signal transmission efficiency can be effectively improved, signal distortion and interference can be reduced, and the stability and reliability of signal transmission can be improved, thereby improving the overall performance and reliability of the microwave module 100. Furthermore, attenuator 33 can be used to adjust the power level of the output signal of the first-stage filter 31, thereby ensuring that the signal has a suitable power range when transmitted to the second-stage filter 32. This prevents signal overload and protects subsequent circuit components.

[0062] It should be added that the attenuator 33 can be set in the filtering module, before the first filter, or after the second filter, etc. This application does not make specific restrictions on the setting position of the attenuator 33 in the first filtering module 30.

[0063] Optionally, according to some embodiments of this application, such as Figure 9 As shown, in order to further improve the performance of the microwave module 100 and ensure the stability and consistency of the signal during transmission and processing, the microwave module 100 may further include: The first amplifier OP1 is electrically connected to the input of the harmonic generator 10. The first amplifier OP1 is used to receive the input baseband signal and adjust the power of the baseband signal before outputting it. The harmonic generator 10 is used to receive the power-adjusted baseband signal and convert the baseband signal into multiple harmonic signals.

[0064] Specifically, in microwave systems, the stability and consistency of signal power are crucial to system performance. Using only harmonic generator 10 will result in variations in the harmonic power of the output harmonic signal, which may adversely affect subsequent signal processing and transmission.

[0065] Therefore, by adding a first amplifier OP1 before the input of the harmonic generator 10, the power of the input fundamental frequency signal can be appropriately adjusted to ensure that the signal received by the harmonic generator 10 has a suitable power level. The first amplifier OP1 optimizes the signal transmission characteristics and signal-to-noise ratio, thereby improving the overall performance of the microwave module 100.

[0066] For example, a first amplifier OP1 with a saturation power of 19dBm and a gain of 20dB is selected. For signals with an input of 0~10dBm, its output is 19dBm. This ensures that the power of the fundamental frequency signal received by the harmonic generator 10 remains consistent, thereby providing a stable and consistent input signal for the harmonic generator 10 and improving the signal processing capability and reliability of the entire microwave module 100.

[0067] In one application example, the amplifier chip selected for the first amplifier OP1 is PMA3-83LN+, which operates in the 0.5~8GHz frequency band, covering the S-band. The amplifier has a standard gain of 20dB, an operating voltage of +5V, and an operating current of 60mA. A schematic diagram of the amplifier's package is shown below. Figure 10 As shown, the amplifier chip contains 12 pins and a grounded paddle. RF-IN is the signal input pin, RF-OUT and DC-IN are the signal output and power supply pins, the paddle is grounded, and the remaining pins are floating.

[0068] From a technical perspective, adding a first amplifier OP1 before the input of the harmonic generator 10 has significant advantages. First, the amplifier ensures that the signal input to the harmonic generator 10 has sufficient power, thereby optimizing the performance of the harmonic generator 10. Second, by adjusting the power of the input signal, the amplifier ensures that the harmonic signal output by the harmonic generator 10 has a stable and consistent power level, thus improving the signal processing capability and reliability of the entire microwave module 100. Furthermore, this design optimizes the signal-to-noise ratio, further enhancing the overall system performance.

[0069] Therefore, by adding a first amplifier OP1 before the input of the harmonic generator 10, this embodiment can not only optimize the power level and signal-to-noise ratio of the signal, but also improve the overall performance and reliability of the microwave module 100.

[0070] Optionally, according to some embodiments in this application, the following continues... Figure 9 As shown, in order to further improve the performance of the microwave module 100 and ensure that the power of the output signal can meet the user's needs, the microwave module 100 may further include: The second amplifier OP2 has its input terminal electrically connected to the output terminal of the second switch chip 40. The second amplifier OP2 is used to receive the first target frequency signal and output the signal after adjusting its power.

[0071] Specifically, in microwave systems, the power of a signal may attenuate after undergoing multiple processing stages (such as filtering and switching selection), or the power of the output signal may be inconsistent due to power differences among different frequency components. Therefore, in this embodiment, the microwave module 100 may further include a second amplifier OP2. The input terminal of the second amplifier OP2 is electrically connected to the output terminal of the second switching chip 40, and can be used to receive the first target frequency signal after filtering and frequency selection, and adjust the power of the signal before outputting it.

[0072] In this way, by adding a second amplifier OP2 after the output of the second switch chip 40, the power of the first target frequency signal can be appropriately adjusted to ensure that the power of the output signal is stable and consistent. This optimizes the signal-to-noise ratio, ensures that the power of the output signal can meet the user's needs, and improves the overall performance and reliability of the microwave module 100.

[0073] For example, selecting a second amplifier OP2 with a saturation power of 19dBm and a gain of 20dB ensures that the output power remains consistent for signals with an input power of 0-10dBm. In a specific application example, the amplifier chip selected for the second amplifier OP2 is the PMA3-83LN+, which operates in the 0.5-8GHz frequency band, covering the S-band.

[0074] Therefore, by adding the second amplifier OP2 after the output of the second switch chip 40, not only can the power level and signal-to-noise ratio of the signal be optimized, but the overall performance and reliability of the microwave module 100 can also be improved, ensuring that the power of the output signal can meet the user's needs.

[0075] Optionally, according to some embodiments of this application, such as Figure 11 As shown, to further enhance the flexibility and adaptability of the microwave module 100, the microwave module 100 may further include: The power divider 50 has its input terminal electrically connected to the output terminal of the harmonic generator 10, and the first output terminal out1 of at least two output terminals of the power divider 50 is electrically connected to the input terminal of the first switching chip 20. The power divider 50 is used to distribute multiple harmonic signals to at least two outputs.

[0076] Specifically, the input terminal of the power divider 50 is electrically connected to the output terminal of the harmonic generator 10, and the first output terminal out1 of its at least two output terminals is electrically connected to the input terminal of the first switching chip 20. The power divider 50 can be used to distribute the multiple harmonic signals output by the harmonic generator 10 to at least two outputs. Through the multiple outputs of the power divider 50, the system can flexibly configure the processing path of the multiple harmonic signals according to different usage environments and requirements.

[0077] Therefore, by expanding the number of multiple harmonic signal output channels through the power divider 50, multiple frequency signals can be flexibly selected and processed according to different usage environments and requirements. For example, in some application scenarios, it may be necessary to process multiple harmonic signals differently. By adding the power divider 50 after the output of the harmonic generator 10, multiple harmonic signals can be distributed to multiple different processing paths, thereby improving the overall performance and adaptability of the microwave module 100.

[0078] Optionally, according to some embodiments of this application, such as Figure 12 As shown, to further enhance the frequency selectivity and adaptability of the microwave module 100 to meet the needs of wider frequency bands and more frequency selections, the microwave module 100 may further include: The third switch chip 60 has its input terminal electrically connected to the second output terminal out2 of at least two output terminals of the power divider 50. The third switch chip 60 is used to connect the input terminal of the third switch chip 60 to the second target output terminal of at least one output terminal of the third switch chip 60 in response to a third control command. At least one second filter module 70, the input terminal of the at least one second filter module 70 is electrically connected to at least one output terminal of the third switch chip 60 in a one-to-one correspondence; the second filter module 70 is used to filter the received multiple harmonic signals to obtain a second target frequency signal, wherein the center frequencies of at least one second filter module 70 are different. The fourth switch chip 80 has at least one input terminal electrically connected to at least one input terminal of the second filter module 70. The fourth switch chip 80 is used to respond to the fourth control command to connect the second target input terminal of at least one input terminal of the fourth switch chip 80 with the output terminal of the fourth switch chip 80 to output the second target frequency signal.

[0079] Specifically, based on the second output terminal out2 provided by the power divider 50, a third switch chip 60, at least one second filter module 70, and a fourth switch chip 80 are further added to achieve comb spectrum signal selection. The functions and implementation methods of the third switch chip 60, at least one second filter module 70, and the fourth switch chip 80 are similar to those of the first switch chip 20, the first filter module 30, and the second switch chip 40 mentioned above, and will not be described in detail here.

[0080] In this embodiment, based on the added third switch chip 60, at least one second filter module 70 and fourth switch chip 80, the microwave module 100 can output more selectable signal frequencies, and the number of selectable signal frequencies can be increased and the frequency range can be set wider, thereby meeting the needs of microwave systems with wider frequency bands and improving the flexibility and adaptability of the microwave module 100.

[0081] Therefore, in practical applications, the microwave module 100 provided in this embodiment can more flexibly select and output signals of different frequencies, thereby better adapting to the bandwidth requirements of different microwave systems and other usage environments.

[0082] It should be added that, in combination Figure 12As shown, the microwave module 100 may further include a fourth amplifier OP4. The input terminal of the fourth amplifier OP4 is electrically connected to the output terminal of the fourth switching chip 80. The fourth amplifier OP4 is used to receive the second target frequency signal and adjust the power of the second target frequency signal before outputting it. It is understood that the function and implementation of the fourth amplifier OP4 are similar to those of the second amplifier OP2 mentioned above, and will not be described in detail here.

[0083] It should also be added that, in some other embodiments, a second filter module 70 can be directly connected after the second output terminal out2 of the power divider 50 to achieve filtering and output of a fixed single signal frequency point.

[0084] Optionally, according to some embodiments of this application, such as Figure 13 As shown, to further improve the performance of the microwave module 100 and ensure effective detection and processing of multiple harmonic signals, the microwave module 100 may further include: The third amplifier OP3 has its input terminal electrically connected to the third output terminal out3 of at least two output terminals of the power divider 50, and its output terminal electrically connected to the harmonic signal detection port TP. The third amplifier OP3 is used to adjust the power of the multiple harmonic signals and transmit the power-adjusted multiple harmonic signals to the harmonic signal detection port TP for detection.

[0085] In this embodiment, the third amplifier OP3 can be used to adjust the power of multiple harmonic signals and transmit the power-adjusted multiple harmonic signals to the harmonic signal detection port TP to ensure that the signal received by the detection port has a sufficient power level so that these signals can be accurately detected in the future.

[0086] Furthermore, in this embodiment, the harmonic generation signal is transmitted to the harmonic signal detection port TP. The harmonic signal detection port TP is used to monitor the characteristics of multiple harmonic signals output by the harmonic generator 10 in real time. This helps to diagnose and maintain the microwave module 100 through signal detection, or to perform operations such as debugging and calibration of the microwave module 100.

[0087] Therefore, by adding a third amplifier OP3 connected to the harmonic signal detection port TP after the power divider 50, not only is the power level of multiple harmonic signals optimized, but the detection capability and reliability of the microwave module 100 are also improved.

[0088] Optionally, according to some embodiments of this application, in combination with actual application requirements, in order to ensure that the microwave module 100 can work effectively in the S-band and meet specific frequency requirements, the frequency range of the multiple harmonic signals generated by the harmonic generator 10 covers the frequency range of the S-band. The center frequencies of the multiple first filter modules 30 are within the S-band frequency range.

[0089] In this embodiment, the frequency range of the multiple harmonic signals generated by the harmonic generator 10 is designed to cover the S-band frequency range (2~4GHz). The frequency range of the multiple harmonic signals covers the S-band frequency range, thereby providing the microwave module 100 with a wide frequency selection capability.

[0090] Furthermore, the center frequencies of the multiple first filter modules 30 are designed to be within the S-band frequency range, enabling these first filter modules 30 to precisely select signals of specific frequencies for filtering and output. For example, the center frequency of one first filter module 30 may be 2.5 GHz, and the center frequency of another first filter module 30 may be 3.2 GHz. These filter modules can precisely select and output the required frequency signals, thereby meeting the specific requirements of the S-band.

[0091] Therefore, by using a harmonic generator 10 covering the S-band and a first filter module 30 with a center frequency located within the S-band frequency range in the microwave module 100, the overall operating frequency of the microwave module 100 is in the S-band, thereby meeting the frequency band requirements frequently used in current microwave systems.

[0092] In some feasible embodiments, since most microwave modules 100 capable of generating comb-spectrum signals are not designed with miniaturization in mind, they cannot meet users' miniaturization requirements. Therefore, in this application embodiment, the overall size and shape of the microwave module 100 are designed in conjunction with… Figure 14 As shown, the microwave module 100 is mounted on a PCB board with dimensions of approximately 98.66mm × 58.45mm × 0.8mm, forming a compact layout to achieve selective output of multi-channel comb spectrum, which is much smaller than the previous S-band microwave module 100.

[0093] Please combine Figure 15The schematic diagram of the finished module shown includes a first amplifier OP1, a harmonic generator 10, a power divider 50, a first switching chip 20, a second switching chip 40, multiple first filter modules 30 (including multiple cascaded filters), and a second amplifier OP2, etc. Since a module may contain multiple units of one type of device, not all are described; only some components are shown. The microwave module 100 includes multiple mounting holes, a metal grounding structure, and isolation zones for the harmonic generator 10, power divider 50, first switching chip 20, second switching chip 40, and multiple filters to reduce coupling between different devices. Through the rational placement of components and the use of advanced integrated circuit technology and compact packaging design, the overall size, volume, and weight of the microwave module 100 are reduced, thus meeting current miniaturization requirements and making it more suitable for portable devices and miniaturized systems.

[0094] Alternatively or optionally, when drawing the PCB (Printed Circuit Board) diagram of the microwave module 100, this application can separate electrical signals and radio frequency (RF) signals. For example, the RF signal-related parts can be placed on the front side, and the electrical signal-related parts on the back side, thereby improving electromagnetic compatibility while miniaturizing the microwave module 100. Furthermore, the impedance matching requirements can be met by controlling the width of the microstrip lines used. In addition, multiple ground vias can be used to allow the ground to contact the metal cavity for heat dissipation, thereby optimizing the thermal management of the microwave module 100.

[0095] Overall, this embodiment proposes a microwave module 100 that forms a continuous link for comb spectrum signal generation and frequency selection through a harmonic generator 10, an amplifier, multiple filters, and switches, enabling independent output of a single harmonic. This design not only optimizes the signal generation and processing process but also improves the performance and adaptability of the microwave module 100.

[0096] In this embodiment, by selecting a chip model corresponding to the appropriate frequency band, the microwave module 100 operates at the S-band, thus meeting the frequency band requirements frequently used in current microwave systems. Furthermore, the microwave module 100 employs a harmonic generator 10, enabling it to generate comb-spectrum signals. By using an amplifier and attenuator 33, the signal transmitted in the microwave module 100 meets user requirements. Through the use of a corresponding S-band filter and a fast-switching switching chip, the microwave module 100 can quickly switch and select useful frequencies, fulfilling the requirement for rapid frequency selection.

[0097] Furthermore, by rationally arranging the components, the overall size of the microwave module 100 is reduced, thus meeting the current requirements for miniaturization. Therefore, this microwave module is of great significance to the development of a miniaturized microwave module 100 that can operate in the S-band and generate comb spectrum signals, which is in line with the current demand.

[0098] It is understood that the above are all examples and do not serve as a substantial limitation on the microwave module 100 protected by this application.

[0099] Based on the microwave module 100 provided in the foregoing embodiments, correspondingly, this application provides a microwave system 1000. Please refer to the following... Figure 16 , Figure 16 This is a schematic diagram of the structure of a microwave system 1000 provided in one embodiment of this application. For example... Figure 16 As shown, the microwave system 1000 includes a microwave module 100 as described in any of the preceding embodiments of this application.

[0100] It should be understood that the microwave system 1000 provided in this application embodiment has the beneficial effects of the microwave module 100 provided in this application embodiment. For details, please refer to the specific description of the microwave module 100 in the above embodiments. This embodiment will not repeat the description here.

[0101] In practical applications, the microwave system 1000 of this application may include one or more microwave modules 100. For example, the microwave system 1000 includes a receiver and a transmitter. The receiver is used to receive useful signals, and the transmitter is used to transmit useful signals in the system. The receiver mixes higher-frequency signals with a local oscillator signal to output a lower-frequency signal, which is then input to the baseband for signal processing. The transmitter mixes the lower-frequency signal processed by the baseband with the local oscillator signal to transmit a higher-frequency signal. In conjunction with the embodiments of this application, both the receiver and the transmitter may include microwave modules 100, thereby fully meeting the operational requirements of the microwave system 1000.

[0102] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0103] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0104] It should be clarified that the various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. According to the embodiments described above, these embodiments do not exhaustively describe all details, nor do they limit this application to only the specific embodiments described. Obviously, many modifications and variations can be made based on the above description. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to make good use of this application and modifications based on it. This application is limited only by the claims and their full scope and equivalents.

[0105] Those skilled in the art will understand that the above embodiments are exemplary and not restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on a study of the drawings, specification, and claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other structures; the quantity refers to "one" but does not exclude multiple; the terms "first" and "second" are used to identify names and not to indicate any particular order. Any reference numerals in the claims should not be construed as limiting the scope of protection. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

[0106] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are merely for the purpose of helping to understand the method and core ideas of this application. The above are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this application to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A microwave module, characterized in that, The microwave module includes: A harmonic generator, which receives an input fundamental frequency signal and converts the fundamental frequency signal into multiple harmonic signals; A first switching chip, the input terminal of the first switching chip is electrically connected to the output terminal of the harmonic generator, and the first switching chip is used to connect the input terminal of the first switching chip to a first target output terminal among the plurality of output terminals of the first switching chip in response to a first control command. Multiple first filtering modules are provided, and the input terminals of the multiple first filtering modules are electrically connected one-to-one with the multiple output terminals of the first switching chip. The first filtering modules are used to filter the received multiple harmonic signals to obtain a first target frequency signal, wherein the center frequencies of the multiple first filtering modules are different. The second switching chip has multiple input terminals that are electrically connected one-to-one with the input terminals of the multiple first filtering modules. The second switching chip is used to respond to the second control command to connect the first target input terminal among the multiple input terminals of the second switching chip with the output terminal of the second switching chip, so as to output the first target frequency signal.

2. The microwave module according to claim 1, characterized in that, At least one of the first filtering modules includes: The first-stage filter has its input terminal electrically connected to the corresponding output terminal of the first switching chip. The second-stage filter has its input terminal electrically connected to the output terminal of the first-stage filter, and its output terminal electrically connected to the corresponding input terminal of the second-stage switch chip. The first-stage filter and the second-stage filter are used to perform graded filtering on the multiple harmonic signals.

3. The microwave module according to claim 2, characterized in that, At least one of the first filtering modules further includes: An attenuator is provided, wherein the input terminal of the attenuator is electrically connected to the output terminal of the first-stage filter, the output terminal of the attenuator is electrically connected to the input terminal of the second-stage filter, and the output terminal of the first-stage filter is electrically connected to the input terminal of the second-stage filter through the attenuator. The attenuator is used to generate a standing wave (SWR) of the frequency signal transmitted from the first-stage filter to the second-stage filter.

4. The microwave module according to claim 1, characterized in that, The microwave module also includes: A first amplifier, the output of which is electrically connected to the input of the harmonic generator, is used to receive the input fundamental frequency signal and adjust the power of the fundamental frequency signal before outputting it. The harmonic generator is used to receive the power-adjusted fundamental frequency signal and convert the fundamental frequency signal into the multiple harmonic signals.

5. The microwave module according to claim 1, characterized in that, The microwave module also includes: The second amplifier has its input terminal electrically connected to the output terminal of the second switching chip. The second amplifier is used to receive the first target frequency signal and adjust the power of the first target frequency signal before outputting it.

6. The microwave module according to claim 1, characterized in that, The microwave module also includes: A power divider, wherein the input terminal of the power divider is electrically connected to the output terminal of the harmonic generator, and the first output terminal of at least two output terminals of the power divider is electrically connected to the input terminal of the first switching chip; The power divider is used to distribute the multiple harmonic signals to at least two outputs.

7. The microwave module according to claim 6, characterized in that, The microwave module also includes: A third switching chip, wherein the input terminal of the third switching chip is electrically connected to the second output terminal of at least two output terminals of the power divider, and the third switching chip is used to connect the input terminal of the third switching chip to the second target output terminal of at least one output terminal of the third switching chip in response to a third control command; At least one second filtering module is provided, wherein the input terminal of the at least one second filtering module is electrically connected to at least one output terminal of the third switching chip in a one-to-one correspondence; the second filtering module is used to filter the received multiple harmonic signals to obtain a second target frequency signal, wherein the center frequencies of at least one second filtering module are different. A fourth switch chip, wherein at least one input terminal of the fourth switch chip is electrically connected to the input terminal of the at least one second filter module in a one-to-one correspondence, and the fourth switch chip is used to respond to a fourth control command to connect the second target input terminal of the at least one input terminal of the fourth switch chip with the output terminal of the fourth switch chip to output the second target frequency signal.

8. The microwave module according to claim 6, characterized in that, The microwave module also includes: The third amplifier, the input terminal of which is electrically connected to the third output terminal of at least two output terminals of the power divider, and the output terminal of which is electrically connected to the harmonic signal detection port; The third amplifier is used to adjust the power of the multiple harmonic signals and transmit the power-adjusted multiple harmonic signals to the harmonic signal detection port for detection.

9. The microwave module according to any one of claims 1-8, characterized in that, The frequency range of the multiple harmonic signals generated by the harmonic generator covers the S-band frequency range. The center frequencies of the plurality of first filter modules are within the frequency range of the S-band.

10. A microwave system, characterized in that, The microwave system includes the microwave module as described in any one of claims 1-9.

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