A WiFi band interference strategy generation device
Patent Information
- Application Number
- CN202522229717.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-10-22
AI Technical Summary
多数干扰设备难以全面覆盖常见的2.4GHz、5.2GHz和5.8GHz三个WiFi频段，仅能对单一或部分频段进行干扰，这样就无法有效阻止使用未被干扰频段的WiFi设备进行数据传输，难以满足特定场合下全面保障信息保密性和安全性的需求
本方案通过数字信号源模块生成多个频段的扫频信号源，这样能够全面覆盖当前常见的WiFi频段，相比仅能干扰单一频段的设备，在考场、保密场所等需要全面屏蔽WiFi信号的场景中适用性更强，可有效应对不同设备使用不同WiFi频段的情况；滤波模块对多个频段的扫频信号源进行带外抑制滤波，能大幅减少干扰信号中的带外杂波、噪声及无关信号，为后续功率放大模块提供纯净信号；功率放大模块对滤波后的信号进行高增益放大，结合天线模块的辐射放大，可提升干扰信号强度、扩大干扰覆盖范围，增强对目标WiFi频段信号的干扰压制能力；且数字信号源模块、滤波模块、功率放大模块、天线模块依次电连接，形成稳定的信号传输与处理链路，各模块分工明确、协同工作，减少信号传输过程中的损耗与干扰，提升设备整体工作可靠性与稳定性。
Smart Images
Figure CN224852290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of WiFi technology, and in particular to a WiFi band interference strategy generation device. Background Technology
[0002] WiFi technology (WiFi stands for Wireless Fidelity) has achieved large-scale application in consumer electronic terminals such as mobile phones and laptops due to its advantages of short-range transmission and high speed, and is now gradually penetrating into more fields such as the Internet of Things and virtual reality.
[0003] However, with the widespread adoption of WiFi wireless connectivity, unauthorized WiFi access in specific scenarios such as examination rooms, meeting rooms, and confidential locations may lead to information leaks and threaten information security. Therefore, it is necessary to interfere with and suppress WiFi signals. However, current methods of interfering with WiFi signals have the following drawbacks: Most jamming devices cannot fully cover the three common WiFi frequency bands of 2.4GHz, 5.2GHz and 5.8GHz. They can only interfere with one or some frequency bands. Therefore, they cannot effectively prevent WiFi devices using uninterrupted frequency bands from transmitting data, and cannot meet the needs of fully ensuring information confidentiality and security in specific situations. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a WiFi band interference strategy generation device that can effectively suppress and interfere with WiFi band signals in a region.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A WiFi band interference strategy generation device includes a digital signal source module, a filter module, a power amplifier module, and an antenna module that are electrically connected in sequence. The digital signal source module is used to generate multiple sweep frequency signal sources in different frequency bands; The filtering module is used to perform out-of-band suppression filtering on the multi-band swept frequency signal source generated by the digital signal source module; The power amplifier module is used to amplify the signal after the out-of-band rejection filtering process of the filter module at a high gain. The antenna module is used to radiate and amplify the signal after the power amplifier module has performed high-gain amplification.
[0006] The beneficial effects of this utility model are as follows: This solution generates a multi-band sweep signal source through a digital signal source module, thus comprehensively covering common WiFi frequency bands. Compared to devices that can only interfere with a single frequency band, it is more applicable in scenarios requiring complete WiFi signal shielding, such as examination rooms and confidential locations, and can effectively address situations where different devices use different WiFi frequency bands. The filtering module performs out-of-band suppression filtering on the multi-band sweep signal source, which can significantly reduce out-of-band clutter, noise, and irrelevant signals in the interference signal, providing a clean signal for the subsequent power amplification module. The power amplification module amplifies the filtered signal with high gain, and combined with the radiation amplification of the antenna module, it can improve the strength of the interference signal, expand the interference coverage, and enhance the ability to suppress interference signals of the target WiFi frequency band. Furthermore, the digital signal source module, filtering module, power amplification module, and antenna module are electrically connected in sequence to form a stable signal transmission and processing link. Each module has a clear division of labor and works collaboratively, reducing loss and interference during signal transmission and improving the overall reliability and stability of the equipment. Attached Figure Description
[0007] Figure 1 A block diagram showing the module connection of the WiFi band interference strategy generation device of this utility model; Figure 2 This is a schematic diagram of the WiFi band interference strategy generation device of this utility model. Figure 3 A schematic diagram of the digital signal source module of the WiFi band interference strategy generation device of this utility model; Label Explanation: 1. Digital signal source module; 11. FPGA chip; 12. Sweep signal source generation unit; 121. Digital-to-analog converter; 122. Up-converter; 123. First low-noise amplifier; 124. Second low-noise amplifier; 125. Attenuator; 13. Clock source controller; 14. Microcontroller; 2. Filtering module; 21. Filter; 3. Power amplifier module; 31. Power amplifier; 4. Antenna module; 41. Horizontal omnidirectional transmitting antenna; 5. Monitoring module; 6. Power supply module. Detailed Implementation
[0008] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0009] Please refer to Figure 1 A WiFi band interference strategy generation device includes a digital signal source module 1, a filter module 2, a power amplifier module 3, and an antenna module 4 connected in sequence. The digital signal source module 1 is used to generate multiple sweep frequency signal sources in different frequency bands; The filtering module 2 is used to perform out-of-band suppression filtering on the multi-band swept frequency signal source generated by the digital signal source module 1; The power amplifier module 3 is used to amplify the signal after the out-of-band rejection filtering process of the filter module 2 with high gain. The antenna module 4 is used to radiate amplify the signal after the power amplifier module 3 has undergone high-gain amplification.
[0010] As can be seen from the above description, the beneficial effects of this utility model are as follows: This solution generates a multi-band sweep signal source through the digital signal source module 1, which can comprehensively cover the common WiFi frequency bands. Compared with devices that can only interfere with a single frequency band, it is more applicable in scenarios where WiFi signals need to be completely blocked, such as examination rooms and confidential places, and can effectively deal with situations where different devices use different WiFi frequency bands. The filtering module 2 performs out-of-band suppression filtering on the multi-band sweep signal source, which can significantly reduce out-of-band clutter, noise and irrelevant signals in the interference signal, providing a clean signal for the subsequent power amplification module 3. The power amplification module 3 amplifies the filtered signal with high gain, and combined with the radiation amplification of the antenna module 4, it can improve the interference signal strength, expand the interference coverage, and enhance the interference suppression capability of the target WiFi frequency band signal. Moreover, the digital signal source module 1, filtering module 2, power amplification module 3 and antenna module 4 are electrically connected in sequence to form a stable signal transmission and processing link. Each module has a clear division of labor and works in concert, reducing loss and interference during signal transmission and improving the overall reliability and stability of the equipment.
[0011] For further details, please refer to Figure 2 and Figure 3 The digital signal source module 1 includes an FPGA chip 11 and three frequency sweep signal source generation units 12 of different frequency bands. The FPGA chip 11 is electrically connected to the three frequency sweep signal source generation units 12 respectively, and the three frequency sweep signal source generation units 12 are all electrically connected to the filter module 2.
[0012] As described above, the FPGA chip 11 possesses powerful digital signal processing capabilities and is electrically connected to three sweep frequency signal generation units 12. This allows for precise control of each sweep frequency signal generation unit 12, ensuring that the frequency accuracy and signal stability of the three different frequency band sweep frequency signal sources meet interference requirements and avoiding interference effects caused by signal parameter deviations. The three sweep frequency signal generation units 12 operate independently, generating sweep frequency signals for the 2.4GHz, 5.2GHz, and 5.8GHz WiFi frequency bands respectively. They can flexibly adjust the output parameters (such as signal strength and sweep frequency speed) of each frequency band signal according to the actual interference scenario requirements, achieving differentiated interference for different frequency bands and improving the flexibility and adaptability of the equipment.
[0013] For further details, please refer to Figure 3 The three frequency sweep signal generation units 12 have the same structure. Each frequency sweep signal generation unit 12 includes a digital-to-analog converter 121, an up-converter 122, a first low-noise amplifier 123, a second low-noise amplifier 124, and an attenuator 125. The digital-to-analog converter 121 is electrically connected to the FPGA chip 11 and the up-converter 122 respectively. The first low-noise amplifier 123 is electrically connected to the up-converter 122 and the attenuator 125 respectively. The second low-noise amplifier 124 is electrically connected to the attenuator 125 and the filter module 2 respectively.
[0014] As described above, the digital signal output from the FPGA chip 11 is converted into an analog signal by the digital-to-analog converter 121, then converted to the target frequency band by the up-converter 122, and then amplified by two stages of low-noise amplifiers to reduce noise introduction. Finally, the signal strength is adjusted by the attenuator 125, forming a complete and optimized signal processing flow, ensuring that the output sweep signal has high quality and appropriate strength. The attenuator 125 can accurately attenuate the analog signal, and can adjust the output strength of the sweep signal source according to the needs of different interference scenarios, avoiding energy waste caused by excessively strong signals or poor interference effect caused by excessively weak signals, thus improving the adaptability of the equipment in different scenarios.
[0015] For further details, please refer to Figure 3 The digital signal source module 1 further includes a clock source controller 13, which is electrically connected to the FPGA chip 11.
[0016] As can be seen from the above description, the clock source controller 13 is electrically connected to the FPGA chip 11, providing a stable clock signal to the FPGA chip 11. This ensures that the FPGA chip 11 can accurately perform digital signal processing and control the frequency sweep signal source generation unit 12 according to the preset timing sequence, avoiding abnormal operation of the FPGA chip 11 due to unstable clock signal, which would affect the frequency accuracy and signal stability of the frequency sweep signal source. This ensures the overall reliability and accuracy of the digital signal source module 1 and provides a stable signal input for subsequent modules.
[0017] For further details, please refer to Figure 3 The digital signal source module 1 further includes a microcontroller 14, which is connected to the FPGA chip 11 and three frequency sweep signal source generation units 12.
[0018] As described above, the microcontroller 14, connected to the FPGA chip 11 and the three sweep frequency signal generation units 12, can collect real-time operating status information of these components (such as operating voltage, current, temperature, and output signal parameters). When abnormal parameters are detected, timely adjustments and corrections can be made to ensure that each component is always in normal working condition, thereby improving the stability and anti-interference capability of the equipment. At the same time, by centrally controlling the FPGA chip 11 and the three sweep frequency signal generation units 12 through the microcontroller 14, the internal control logic of the equipment is simplified, the complexity of the control circuits between components is reduced, the probability of equipment failure is lowered, and it is also convenient for subsequent upgrades and maintenance of the equipment control program.
[0019] For further details, please refer to Figure 2 The filtering module 2 includes three filters 21, which are electrically connected to the output terminals of the three sweep frequency signal sources of the digital signal source module 1, respectively. All three filters 21 are electrically connected to the power amplifier module 3.
[0020] As described above, the three filters 21 in the filtering module 2 correspond one-to-one with the output terminals of the three sweep frequency signal sources in the digital signal source module 1. This allows for specialized out-of-band suppression filtering of sweep frequency signals in three different frequency bands: 2.4GHz, 5.2GHz, and 5.8GHz. Compared to a single filter 21 processing three frequency bands simultaneously, this method can more accurately suppress out-of-band signals in each band, further improving the purity of interference signals in each band and reducing interference from out-of-band signals to other devices. Furthermore, each filter 21 processes a signal in one frequency band, ensuring that the signals in the three frequency bands are independent during the filtering stage. This avoids mutual interference between signals in different frequency bands and ensures that the filtering effect of each frequency band is not affected by signals in other frequency bands, providing a high-quality single-band signal for the subsequent power amplifier module 3.
[0021] For further details, please refer to Figure 2The power amplifier module 3 includes three power amplifiers 31, which are electrically connected to three filters 21 respectively, and all three power amplifiers 31 are electrically connected to the antenna module 4.
[0022] As described above, the three power amplifiers 31 of the power amplifier module 3 correspond one-to-one with the three filters 21, and can perform high-gain amplification of the filtered 2.4GHz, 5.2GHz, and 5.8GHz single-band signals. They can precisely adjust the amplification parameters according to the characteristics and interference requirements of each band signal to achieve efficient amplification of each band signal and ensure that the interference signal of each band can reach the required strength. Each power amplifier 31 independently processes the signal of its corresponding band, avoiding mutual interference between different band signals during the amplification process, preventing poor amplification effect or the generation of additional noise signals due to signal crosstalk, ensuring the quality and strength of the interference signal of each band, and improving the overall interference effect of the equipment.
[0023] For further details, please refer to Figure 2 The antenna module 4 includes three horizontal omnidirectional transmitting antennas 41, and the three horizontal omnidirectional transmitting antennas 41 are electrically connected to the three power amplifiers 31 respectively.
[0024] As described above, the three horizontal omnidirectional transmitting antennas 41 of the antenna module 4 correspond to the three power amplifiers 31 respectively. This type of antenna radiates uniformly in a 360° horizontal pattern, which can radiate the amplified interference signals of the three frequency bands uniformly in all directions. Compared with directional antennas, it can significantly expand the coverage of interference signals and ensure that all directions in a specific area can be effectively interfered with by WiFi frequency bands. At the same time, the horizontal omnidirectional transmitting antennas 41 have high power handling capacity and high gain, and can stably radiate high-power interference signals, avoiding excessive signal attenuation or unstable radiation due to insufficient antenna performance, ensuring the strength and stability of the interference signal within the coverage area, and ensuring the consistency of the interference effect.
[0025] For further details, please refer to Figure 1 It also includes a monitoring module 5, which is electrically connected to the digital signal source module 1 and the power amplifier module 3 respectively.
[0026] As described above, the monitoring module 5 is electrically connected to the digital signal source module 1 and the power amplifier module 3, respectively. It can collect the operating status information of these two key modules in real time, such as the frequency, bandwidth, and intensity of the output signal of the digital signal source module 1, and the output power and standing wave ratio of the power amplifier module 3. Through the monitoring module 5, the staff can understand the equipment operation status in a timely manner. When the monitoring module 5 detects abnormal operating parameters of these two modules, it can issue an alarm signal in a timely manner, which can facilitate the staff to quickly find the fault and carry out troubleshooting and repair, reduce the impact of equipment failure on interference work, and improve the maintenance efficiency and reliability of the equipment. In addition, the monitoring module 5 can also remotely or locally adjust the operating parameters of the digital signal source module 1 and the power amplifier module 3, such as adjusting the interference pattern, signal bandwidth, and output power, so that the equipment can flexibly adapt to changes in the actual interference scenario, improving the practicality and flexibility of the equipment.
[0027] For further details, please refer to Figure 1 It also includes a power supply module 6, which is electrically connected to the digital signal source module 1, the filter module 2, the power amplifier module 3 and the antenna module 4 respectively.
[0028] As described above, the power module 6 can convert external AC power into DC voltage and current required for the operation of each module inside the device, providing stable and continuous power support for the digital signal source module 1, filter module 2, power amplifier module 3, and antenna module 4. This prevents abnormal operation of each module due to unstable power supply and ensures the normal operation of the entire device. Furthermore, different modules have different requirements for power supply voltage and current. The power module 6 can provide corresponding DC power according to the specific needs of each module, ensuring that each module can work under optimal power supply conditions, improving the working performance and service life of each module, and thus ensuring the overall working efficiency and reliability of the device.
[0029] Please refer to Figures 1 to 3 As shown, Embodiment 1 of this utility model is as follows: Please refer to Figure 1 A WiFi band interference strategy generation device includes a digital signal source module 1, a filter module 2, a power amplifier module 3, and an antenna module 4 connected in sequence. The digital signal source module 1 is used to generate three frequency sweep signal sources with different frequency bands. The WiFi frequency bands of the three frequency sweep signal sources are 2.4GHz (the specific frequency range is usually between 2400MHz and 2500MHz), 5.2GHz (the specific frequency range is usually between 5100MHz and 5350MHz), and 5.8GHz (the specific frequency range is usually between 5700MHz and 5850MHz). The filtering module 2 is used to perform out-of-band suppression filtering on the three frequency band sweep signal sources generated by the digital signal source module 1. The power amplifier module 3 is used to amplify the signal after the out-of-band rejection filtering process of the filter module 2 with high gain. The antenna module 4 is used to radiate amplify the signal after the power amplifier module 3 has undergone high-gain amplification.
[0030] Please refer to Figure 2 and Figure 3 The digital signal source module 1 includes an FPGA chip 11 (model XC7K325T-2FFG900I) and three frequency sweep signal source generation units 12 of different frequency bands. The FPGA chip 11 is electrically connected to the three frequency sweep signal source generation units 12 respectively, and the three frequency sweep signal source generation units 12 are all electrically connected to the filter module 2.
[0031] Please refer to Figure 3 The three frequency sweep signal generation units 12 have the same structure. Each frequency sweep signal generation unit 12 includes a digital-to-analog converter 121 (model ECR8668), an up-converter 122 (model PCF8563T), a first low-noise amplifier 123 (model SKY65015-70LF), a second low-noise amplifier 124 (model SKY65015-70LF), and an attenuator 125 (model PE4306). The digital-to-analog converter 121 is electrically connected to the FPGA chip 11 and the up-converter 122 respectively. The first low-noise amplifier 123 is electrically connected to the up-converter 122 and the attenuator 125 respectively. The second low-noise amplifier 124 is electrically connected to the attenuator 125 and the filter module 2 respectively.
[0032] Please refer to Figure 3 The digital signal source module 1 also includes a clock source controller 13 (model DL5801ACPZ), which is electrically connected to the FPGA chip 11.
[0033] Please refer to Figure 3 The digital signal source module 1 also includes a microcontroller 14 (model STM32F407VET6), which is connected to the FPGA chip 11 and three sweep frequency signal source generation units 12.
[0034] Please refer to Figure 2 The filtering module 2 includes three filters 21 (the three filters 21 are of the same model, all of which are DAC3484IZAY). The three filters 21 are electrically connected to the output terminals of the three sweep frequency signal sources of the digital signal source module 1, respectively. The three filters 21 are all electrically connected to the power amplifier module 3.
[0035] Please refer to Figure 2The power amplifier module 3 includes three power amplifiers 31 (the three models are BLC9G27XS-380AVT, GNQ8018L and GNC6061LW respectively). The three power amplifiers 31 are electrically connected to the three filters 21 one by one, and the three power amplifiers 31 are all electrically connected to the antenna module 4.
[0036] The antenna module 4 includes three horizontal omnidirectional transmitting antennas 41 (all three horizontal omnidirectional transmitting antennas 41 are WIFI 2.4G and 5.8G dual-band antennas), and the three horizontal omnidirectional transmitting antennas 41 are electrically connected to the three power amplifiers 31 in a one-to-one correspondence.
[0037] Please refer to Figure 1 It also includes a monitoring module 5 (including a chip with model number STM32F407VET6), which is electrically connected to the digital signal source module 1 and the power amplifier module 3 respectively.
[0038] Please refer to Figure 1 It also includes a power supply module 6 (including a chip with the model number RT6242BHGQUF), which is electrically connected to the digital signal source module 1, the filter module 2, the power amplifier module 3 and the antenna module 4 respectively.
[0039] The working principle of the aforementioned WiFi band interference strategy generation device is as follows: The WiFi band interference strategy generation device designed in this scheme revolves around signal generation, processing, amplification, and radiation. The various modules work together to effectively interfere with the target WiFi band signal. The specific process is as follows: The first stage is signal generation. After the power module 6 starts up, it supplies power to the digital signal source module 1. Under the stable clock signal provided by the clock source controller 13, the FPGA chip 11 in the digital signal source module 1 generates digital control signals according to the preset interference strategy and transmits them to the three sweep frequency signal source generation units 12 respectively. At the same time, the microcontroller 14 monitors and controls the FPGA chip 11, the digital-to-analog converter 121 and the up-converter 122 in real time. In each sweep frequency signal source generation unit 12, the digital-to-analog converter 121 first converts the digital signal output by the FPGA chip 11 into an analog signal. The up-converter 122 converts the analog signal to the target frequency band (2.4GHz or 5.2GHz or 5.8GHz). Then, the analog signal is amplified by the first low-noise amplifier 123 to reduce noise. Then, the signal strength is adjusted by the attenuator 125 and then amplified by the second low-noise amplifier 124 to further reduce noise. Finally, three sweep frequency signal sources with different frequency bands that meet the requirements are generated.
[0040] Next comes the signal filtering stage. The three frequency sweep signals generated by the digital signal source module 1 are transmitted to the three corresponding filters 21 in the filtering module 2. Each filter 21 only allows signals of the corresponding target frequency band to pass through, effectively suppressing and attenuating clutter, noise and irrelevant signals outside the frequency band. After out-of-band suppression filtering, clean frequency sweep signals of each frequency band are obtained, providing high-quality signal input for subsequent signal amplification and avoiding out-of-band signal interference with other devices.
[0041] Then comes the signal amplification stage. The clean sweep signal obtained after filtering enters the three corresponding power amplifiers 31 in the power amplification module 3. The power amplifiers 31 adopt a high linearity and high efficiency amplification method to amplify the input small radio frequency signal with high gain, so that the signal power is increased to the range of 10-50W, which meets the strength requirements of the interference signal covering a specific area and ensures that the target WiFi frequency band signal can be effectively suppressed.
[0042] Finally, in the signal radiation and monitoring stage, the high-power signal, after being amplified by high gain, is transmitted to the three corresponding horizontal omnidirectional transmitting antennas 41 in the antenna module 4. The antennas radiate the signal into the surrounding space in a 360° uniform manner, achieving interference suppression of WiFi signals in the 2.4GHz, 5.2GHz, and 5.8GHz frequency bands within a specific area. During this process, the monitoring module 5 collects parameters such as interference pattern, signal bandwidth, and frequency sweep speed from the digital signal source module 1 in real time, as well as operating status information such as output power and standing wave ratio of the power amplifier module 3. Staff can query this information through the relevant interface of the monitoring module 5. If abnormal parameters are found, they can be adjusted in time. At the same time, the device will upload status information periodically and automatically alarm when a fault occurs, so that staff can troubleshoot and repair in time, ensuring that the device can continuously and stably play a comprehensive interference role against the three WiFi frequency bands.
[0043] In summary, the WiFi band interference strategy generation device provided by this utility model generates multiple frequency band sweep signal sources through a digital signal source module. This comprehensively covers common WiFi frequency bands. Compared with devices that can only interfere with a single frequency band, it is more applicable in scenarios requiring complete WiFi signal shielding, such as examination rooms and confidential locations, and can effectively address situations where different devices use different WiFi frequency bands. The filtering module performs out-of-band suppression filtering on the multiple frequency band sweep signal sources, which can significantly reduce out-of-band clutter, noise, and irrelevant signals in the interference signal, providing a clean signal for the subsequent power amplification module. The power amplification module amplifies the filtered signal with high gain, and combined with the radiation amplification of the antenna module, it can improve the interference signal strength, expand the interference coverage, and enhance the interference suppression capability against the target WiFi frequency band signal. Furthermore, the digital signal source module, filtering module, power amplification module, and antenna module are electrically connected in sequence to form a stable signal transmission and processing link. Each module has a clear division of labor and works collaboratively, reducing signal loss and interference during transmission and improving the overall reliability and stability of the device.
[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A WiFi band interference strategy generation device, characterized in that, It includes a digital signal source module, a filter module, a power amplifier module, and an antenna module that are connected in sequence. The digital signal source module is used to generate multiple sweep frequency signal sources in different frequency bands; The filtering module is used to perform out-of-band suppression filtering on the multi-band swept frequency signal source generated by the digital signal source module; The power amplifier module is used to amplify the signal after the out-of-band rejection filtering process of the filter module at a high gain. The antenna module is used to radiate and amplify the signal after the power amplifier module has performed high-gain amplification.
2. The WiFi band interference strategy generation device according to claim 1, characterized in that, The digital signal source module includes an FPGA chip and three frequency sweep signal source generation units with different frequency bands. The FPGA chip is electrically connected to the three frequency sweep signal source generation units respectively, and the three frequency sweep signal source generation units are all electrically connected to the filtering module.
3. The WiFi band interference strategy generation device according to claim 2, characterized in that, The three frequency sweep signal generation units have the same structure, and each frequency sweep signal generation unit includes a digital-to-analog converter, an up-converter, a first low-noise amplifier, a second low-noise amplifier, and an attenuator; The digital-to-analog converter is electrically connected to the FPGA chip and the upconverter, the first low-noise amplifier is electrically connected to the upconverter and the attenuator, and the second low-noise amplifier is electrically connected to the attenuator and the filter module.
4. The WiFi band interference strategy generation device according to claim 2, characterized in that, The digital signal source module also includes a clock source controller, which is electrically connected to the FPGA chip.
5. The WiFi band interference strategy generation device according to claim 2, characterized in that, The digital signal source module also includes a microcontroller, which is electrically connected to the FPGA chip and three sweep frequency signal source generation units.
6. The WiFi band interference strategy generation device according to claim 1, characterized in that, The filtering module includes three filters, which are electrically connected to the output terminals of the three sweep frequency signal sources of the digital signal source module, respectively. All three filters are electrically connected to the power amplifier module.
7. The WiFi band interference strategy generation device according to claim 6, characterized in that, The power amplifier module includes three power amplifiers, each of which is electrically connected to one of the three filters, and all three power amplifiers are electrically connected to the antenna module.
8. The WiFi band interference strategy generation device according to claim 7, characterized in that, The antenna module includes three horizontal omnidirectional transmitting antennas, and the three horizontal omnidirectional transmitting antennas are electrically connected to the three power amplifiers respectively.
9. The WiFi band interference strategy generation device according to claim 1, characterized in that, It also includes a monitoring module, which is electrically connected to the digital signal source module and the power amplifier module respectively.
10. The WiFi band interference strategy generation device according to claim 1, characterized in that, It also includes a power supply module, which is electrically connected to the digital signal source module, the filter module, the power amplifier module and the antenna module respectively.