A miniature radar jamming device based on digital radio frequency memory technology

Abstract

The utility model belongs to the technical field of electronic interference, specifically disclose a kind of miniature radar interference device based on digital radio frequency storage technology.The device includes: three-dimensional integrated arrangement and the DRFM digital circuit unit and analog circuit unit connected in sequence;The DRFM digital circuit unit includes multiway storage frequency interference branch, for generating the modulated signal of different frequency of multiple ways according to input radio frequency signal;The analog circuit unit is used to carry out power synthesis according to the modulated signal of different frequency of multiple ways, and after signal synthesis, local oscillation signal is mixed, and the interference signal of target frequency range is output. Through the utility model, can obtain the interference signal of wider frequency range, improve the device interference ability, and greatly improve the miniaturization level of device, integrated level is high, device is more reliable.

Description

Technical Field

[0001] This utility model belongs to the field of electronic interference technology, and more specifically, relates to a miniature radar jamming device based on digital radio frequency storage technology. Background Technology

[0002] Traditional radar jamming devices typically use magnetrons or klystrons as their core transmitters. These devices have narrow tuning ranges, and the jamming signals they generate usually only cover specific frequency bands, resulting in a limited frequency range and thus limited jamming capabilities. Furthermore, because traditional radar jamming devices are mostly planar in layout, their digital circuits, analog circuits, and power supplies occupy a significant amount of physical space. Therefore, the planar layout of traditional radar jamming devices makes miniaturization difficult, limiting their application in the field of electronic warfare.

[0003] Therefore, how to better implement radar jamming devices has become a technical problem that the industry urgently needs to solve. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to better realize the application of radar jamming devices, and to solve the problems of limited interference signal frequency range and difficulty in miniaturization of traditional radar jamming devices.

[0005] To achieve the above objectives, this utility model provides a miniature radar jamming device based on digital radio frequency storage technology, comprising: DRFM digital circuit units and analog circuit units are arranged in three dimensions and connected sequentially. The DRFM digital circuit unit includes multiple frequency storage interference branches, which are used to generate multiple modulation signals of different frequencies based on the input radio frequency signal; The analog circuit unit is used to perform power synthesis based on the multiple modulation signals of different frequencies, and to mix the synthesized signal with the local oscillation signal to output an interference signal within the target frequency range.

[0006] Optionally, the DRFM digital circuit unit further includes a first mixer and a power divider connected in sequence, wherein the multiple output terminals of the power divider are connected one-to-one with the input terminals of the multiple frequency storage interference branches; The first mixer is used to mix the radio frequency signal with the local oscillator signal; The power divider is used to output a second mixing signal with multiple target powers based on a first mixing signal output by the mixer; the target power is less than the power of the first mixing signal. Each of the aforementioned frequency storage interference branches is used to generate a modulation signal of the corresponding frequency based on the second mixing signal of the input target power.

[0007] Optionally, each of the frequency storage interference branches includes a first filter, an analog-to-digital converter, a memory, and a digital-to-analog converter connected in sequence; the filtering frequency band of the first filter in each of the frequency storage interference branches is different. The first filter is used to filter the second mixer signal of the input target power; The analog-to-digital converter is used to convert the filtered signal output by the first filter into a corresponding digital signal; The memory is used to store the digital signal; The digital-to-analog converter is used to convert the digital signal forwarded by the memory into a modulated signal of the corresponding frequency.

[0008] Optionally, the analog circuit unit includes a multiplexed second filter, a power combiner, a local oscillator, and a second mixer; The input terminals of the multi-channel second filter are connected one-to-one with the output terminals of the multi-channel frequency storage interference branch; the output terminals of the multi-channel second filter are connected one-to-one with the multiple input terminals of the power combiner; the output terminal of the power combiner is connected to the first input terminal of the second mixer; and the output terminal of the local oscillator is connected to the second input terminal of the second mixer. The multi-channel second filter is used to filter and denoise each of the modulated signals to obtain the denoised signals of each channel. The power combiner is used to combine the denoised signals from each channel to obtain the combined signal; The second mixer is used to mix the synthesized signal with the local oscillation signal output by the local oscillator, and output an interference signal in the target frequency range.

[0009] Optionally, it also includes a power supply circuit unit; The power supply circuit unit is vertically arranged between the analog circuit unit and the DRFM digital circuit unit in a three-dimensional integrated manner; the analog circuit unit and the DRFM digital circuit unit are respectively electrically connected to the power supply circuit unit. The power supply circuit unit is used to supply power to the analog circuit unit and the DRFM digital circuit unit respectively.

[0010] Optionally, both the analog circuit unit and the power supply circuit unit are loss circuits with power lower than the target power value.

[0011] Optionally, the circuit boards used in the DRFM digital circuit unit, the power supply circuit, and the analog circuit unit are all microstrip circuit boards.

[0012] Optionally, the connection between the circuit board of the power supply circuit unit and the circuit board of the DRFM digital circuit unit and the circuit board of the analog circuit unit is a via connection.

[0013] Optionally, the device further includes a developable circuit unit; the developable circuit unit is vertically arranged directly above the analog circuit unit in a three-dimensional integrated manner; the developable circuit unit is connected to the analog circuit unit.

[0014] Optionally, the DRFM digital circuit unit, the power supply circuit, the analog circuit unit, and the developable circuit unit are assembled and cured using a curing agent.

[0015] In summary, the technical solutions conceived by this utility model have the following beneficial effects compared with the prior art: (1) This utility model provides a miniature radar jamming device based on digital radio frequency storage technology. By introducing DRFM technology, multiple frequency storage jamming branches are designed to generate multiple modulation signals of different frequencies. Combined with the power synthesis and mixing functions of the analog circuit unit, signal processing is performed to obtain jamming signals with a wider frequency range, thereby improving the device's jamming capability. (2) By adopting the three-dimensional integrated multi-layer stacking assembly technology, the DRFM digital circuit unit and analog circuit unit are set up in layers, which can greatly reduce the space occupied by the circuit module, greatly improve the miniaturization level of the device, and make the device more reliable. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of a miniature radar jamming device based on digital radio frequency storage technology provided in this embodiment of the present invention; Figure 2 This is a schematic diagram of an existing interference circuit structure based on DRFM technology provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the circuit structure of the miniature radar jamming device provided in this embodiment of the present invention; Figure 4 This is the second schematic diagram of the structure of the miniature radar jamming device based on digital radio frequency storage technology provided in this embodiment of the present invention; Figure 5 This is the third schematic diagram of the structure of the miniature radar jamming device based on digital radio frequency storage technology provided in this embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] The terms "first" and "second," etc., used in the specification and claims of this utility model are used to distinguish different objects, not to describe a specific order of the objects. For example, "first mixer" and "second mixer," etc., are used to distinguish different mixers, not to describe a specific order of the mixers.

[0019] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0020] In the description of the embodiments of this utility model, unless otherwise stated, "multi-channel" means two or more channels. For example, multi-channel frequency storage interference branch means two or more frequency storage interference branches.

[0021] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0022] Figure 1 This is one of the structural schematic diagrams of a miniature radar jamming device based on digital radio frequency storage technology provided in this embodiment of the present invention, such as... Figure 1 As shown, it includes: The DRFM digital circuit unit 1 and analog circuit unit 2 are arranged in three dimensions and connected in sequence. The DRFM digital circuit unit 1 includes a multi-channel frequency storage interference branch 11, which is used to generate multiple modulation signals of different frequencies according to the input radio frequency signal; Analog circuit unit 2 is used to perform power synthesis based on multiple modulation signals of different frequencies, and mix the synthesized signal with the local oscillation signal to output an interference signal within the target frequency range.

[0023] Specifically, in the embodiments of this utility model, the vertical interconnection technology of three-dimensional integrated micro-assembly is used to integrate and assemble the DRFM digital circuit unit and the analog circuit unit, which can greatly reduce the space occupied by the equipment and realize the miniaturization and micro-miniaturization of the radar jamming device.

[0024] In the embodiments of this utility model, digital and analog circuits of a miniature radar jamming device are designed by introducing digital radio frequency memory (DRFM) technology.

[0025] It should be noted that DRFM technology can realize the functions of radio frequency signal storage and forwarding. In jamming applications, DRFM performs high-speed sampling, storage, jamming modulation processing and replication of received signals, which can realize the flexibility of jamming technology.

[0026] To counter the threat of electronic attacks, the introduction of DRFM technology is expected to improve the electronic countermeasures and self-protection capabilities of equipment. While commonly used DRFM equipment can partially solve the electronic protection problem of attack targets, it is of little effect against multi-target, multi-frequency electronic countermeasures.

[0027] like Figure 2 As shown, in existing technologies, in interference simulation circuits based on DRFM technology, after the RF transceiver component receives the radar RF signal, it is sent to the FPGA signal processing board. An analog-to-digital converter (A / D converter) performs A / D signal conversion, followed by storage, delay, and interference loading. Then, a digital-to-analog converter (D / A converter) converts the signal back into an analog signal, which is finally transmitted, forming suppression or deceptive interference. More specifically, the DRFM circuit unit includes: a mixer, a filter, an A / D converter, a memory, and a D / A converter. The RF signal is mixed with a fixed-frequency local oscillator signal to obtain the detection frequency achievable by the A / D conversion. This signal is then stored in the memory. During application, a computer (or signal processor) retrieves the stored digital signal based on the characteristics of the simulated target, converts it back into an analog signal via the D / A converter, and mixes the same local oscillator signal output from the system's local oscillator and the DRFM local oscillator. The resulting delayed signal, restoring the original RF signal characteristics, is then transmitted. It can also be amplified as needed before transmission. However, due to limitations in circuit structure design, the interference band of the interference signal obtained by this method is still limited, and it cannot solve the problems of limited frequency range of interference signal and limited capability of interference device.

[0028] In embodiments of this invention, to obtain a wider interference bandwidth, more deception or suppression interference links are integrated within a limited space by broadening the signal frequency diversity. This invention employs a three-dimensional assembly technology integrating several interference links, which can obtain interference signals over a wider frequency range.

[0029] In the embodiments of this utility model, improvements are made based on DRFM technology. The designed DRFM digital circuit unit includes multiple frequency storage interference branches. By introducing multiple frequency storage interference branches, more signal frequency diversity is broadened, so that the digital circuit can generate multiple modulation signals of different frequencies according to the input radio frequency signal.

[0030] Figure 3 This is a schematic diagram of the circuit structure of the miniature radar jamming device provided in this embodiment of the present invention, as shown below. Figure 3 As shown, in an embodiment of this utility model, the DRFM digital circuit unit 1 further includes a first mixer 12 and a power divider 13 connected in sequence, with the multiple output terminals of the power divider 13 corresponding to the input terminals of the multiple frequency storage interference branches 11. The first mixer 12 is used to mix the radio frequency signal with the local oscillation signal; The power divider 13 is used to output a second mixing signal with multiple target powers based on the first mixing signal output by the mixer; the target power is less than the power of the first mixing signal; Each frequency storage interference branch 11 is used to generate a modulation signal of the corresponding frequency based on the second mixing signal of the input target power.

[0031] Specifically, in an embodiment of this utility model, the DRFM digital circuit unit can be composed of a first mixer, a power divider, and multiple frequency storage interference branches. The multiple output terminals of the power divider are connected one-to-one with the input terminals of the multiple frequency storage interference branches. That is, the number of multiple frequency storage interference branches can be set to be the same as the number of output ports of the power divider, and each output terminal of the power divider is connected to one of the multiple frequency storage interference branches.

[0032] In an embodiment of this invention, after receiving an input radio frequency (RF) signal, the first mixer mixes the RF signal with an oscillation signal generated by a local oscillator and outputs a mixed signal to a power divider. The power divider can then divide the power of the first mixed signal output by the mixer into multiple channels of second mixed signals with target power. It is understood that the target power is less than the power of the first mixed signal.

[0033] Furthermore, each frequency storage interference branch can receive the second mixing signal of its respective target power input. Through filtering, analog-to-digital conversion, storage, and digital-to-analog conversion, each frequency storage interference branch can finally generate a modulation signal of the corresponding frequency.

[0034] Continue to refer to Figure 3As an optional embodiment, each frequency storage interference branch 11 includes a first filter 111, an analog-to-digital converter 112, a memory 113, and a digital-to-analog converter 114 connected in sequence; the filtering frequency band of the first filter 111 in each frequency storage interference branch 11 is different. The first filter 111 is used to filter the second mixing signal of the input target power; The analog-to-digital converter 112 is used to convert the filtered signal output from the first filter into a corresponding digital signal; Memory 113 is used to store digital signals; The digital-to-analog converter 114 is used to convert the digital signal forwarded by the memory 113 into a modulated signal of the corresponding frequency.

[0035] Specifically, in the embodiments of this utility model, each frequency storage interference branch includes a first filter, an A / D converter, a memory, and a D / A converter connected in sequence. The filtering frequency bands of the first filters in each frequency storage interference branch are different, but the superposition of the filtering frequency bands of the various first filters can cover a wide frequency range.

[0036] In an embodiment of this invention, the first filter in each frequency storage interference branch filters the second mixing signal of its respective input target power to obtain a second mixing signal of the corresponding frequency. Furthermore, the analog-to-digital converter in each frequency storage interference branch converts the filtered signal output from its respective first filter into a corresponding digital signal and stores it in its respective memory. During interference, these digital signals can be extracted and converted into a modulation signal of the corresponding frequency by a D / A converter to initiate processing by the analog circuit unit.

[0037] Continue to refer to Figure 3 As an optional embodiment, the analog circuit unit 2 includes a multiplexed second filter 21, a power combiner 22, a local oscillator 23, and a second mixer 24; The input terminals of the multi-channel second filter 21 are connected one-to-one with the output terminals of the multi-channel frequency storage interference branch 11; the output terminals of the multi-channel second filter 21 are connected one-to-one with the multiple input terminals of the power combiner 22; the output terminal of the power combiner 22 is connected to the first input terminal of the second mixer 24, and the output terminal of the local oscillator 23 is connected to the second input terminal of the second mixer 24. The multi-channel second filter 21 is used to filter and denoise each modulation signal to obtain the denoised signal of each channel. The power combiner 22 is used to combine the denoised signals from each channel to obtain the combined signal; The second mixer 24 is used to mix the synthesized signal with the local oscillation signal output by the local oscillator 23, and output an interference signal within the target frequency range.

[0038] Specifically, in the embodiments of this utility model, the analog circuit unit can be composed of a multi-channel second filter, a power combiner, a local oscillator, and a second mixer. The input terminals of the multi-channel second filter are connected one-to-one with the output terminals of the multi-channel frequency storage interference branches; the output terminals of the multi-channel second filter are connected one-to-one with the multiple input terminals of the power combiner. Here, the number of output ports of the power divider, the number of multi-channel frequency storage interference branches, and the number of multiple input terminals of the multi-channel second filter and the power combiner can be set to the same number.

[0039] Furthermore, in the embodiments of this utility model, each second filter can filter and denoise its respective input modulation signal, and output the denoised signal to the power combiner. The power combiner synthesizes the input denoised signals and outputs the synthesized signal to the second mixer. The second mixer finally mixes the synthesized signal with the local oscillation signal output by the local oscillator, and finally outputs the interference signal in the target frequency range.

[0040] Here, the interference signal in the target frequency range is used to characterize the interference signal in a wider frequency range. The target frequency range can be reasonably designed according to actual application requirements, and this utility model does not make specific limitations in this regard.

[0041] Figure 4 This is a second schematic diagram of the structure of the miniature radar jamming device based on digital radio frequency storage technology provided in this embodiment of the present invention, as shown below. Figure 4 As shown, by employing miniaturized three-dimensional integrated fabrication technology, the DRFM digital circuit unit 1 and analog circuit unit 2 are layered, assembled, and connected, greatly reducing the size of the device.

[0042] A typical digital circuit component of a DRFM module is non-volatile memory and a processor or field-programmable gate array (FPGA). To handle multi-target interference under dense signals, high gigabyte storage capacity is typically required, but this leads to increased size. By employing 3D integration technology with vertical stacking and interconnection of multiple memory devices, up to 85% of 2D board space can be saved compared to discrete planar arrays. Using a 3D packaging scheme, up to 18 memory cell devices can be integrated into a single high-reliability module, weighing less than 500g, supporting the needs of most processing-intensive applications.

[0043] The system's radio frequency transceiver components can be implemented using miniature radio frequency multi-chip module (MCM) technology. The package size of this module is less than 1 / 4 the size of traditional radio frequency analog circuits, and it weighs less than 500g.

[0044] Figure 5This is the third schematic diagram of the structure of the miniature radar jamming device based on digital radio frequency storage technology provided in this embodiment of the present invention, as shown below. Figure 5 As shown in the embodiment of this utility model, the miniature radar jamming device further includes a power supply circuit unit 3. The power supply circuit unit 3 is vertically arranged between the analog circuit unit 2 and the DRFM digital circuit unit 1 in a three-dimensional integrated manner; the analog circuit unit 2 and the DRFM digital circuit unit 1 are electrically connected to the power supply circuit unit 2 respectively. The power supply circuit unit 2 is used to supply power to the analog circuit unit 2 and the DRFM digital circuit unit 1 respectively.

[0045] Continue to refer to Figure 5 In an embodiment of this utility model, the miniature radar jamming device further includes a developable circuit unit 4; the developable circuit unit 4 is vertically arranged above the analog circuit unit 2 in a three-dimensional integrated manner; the developable circuit unit 4 is connected to the analog circuit unit 2.

[0046] In embodiments of this utility model, such as Figure 5 As shown, a vertically stacked three-dimensional digital frequency storage interference device is provided. This device includes: a DRFM digital circuit unit, an analog circuit unit, a power supply circuit unit, and a developable circuit unit, which can greatly reduce the equipment space and create conditions for miniaturization. The DRFM digital circuit unit, analog circuit unit, power supply circuit unit, and developable circuit unit are assembled into modules in a hierarchical manner from bottom to top. The bottom of the module is a ball grid array, and the solder balls in the ball grid array can obtain electrical energy and the required signal through the circuit board.

[0047] Based on the above embodiments, as an optional embodiment, both the analog circuit unit and the power supply circuit unit are loss circuits with power lower than the target power value.

[0048] Specifically, in the embodiments of this utility model, the loss circuit of the target power value is used to characterize the low-loss circuit, and its specific value can be determined according to the actual circuit selection.

[0049] In the embodiments of this utility model, by using low-power, low-loss circuits in the analog circuit unit and the power supply circuit unit, the functional loss of the device can be effectively reduced.

[0050] Based on the above embodiments, as an optional embodiment, the connection method between the power supply circuit unit circuit board and the DRFM digital circuit unit circuit board and the analog circuit unit circuit board is a via connection method.

[0051] Specifically, in the embodiments of this utility model, the devices on the circuit board of the power supply circuit unit, the circuit board of the DRFM digital circuit unit, and the circuit board of the analog circuit unit are micro-assembled using chips or components and integrated into a multi-layer PCB circuit board according to design standards. By using via connection, the circuit connection can use micro-via technology to minimize the spacing, which not only minimizes the connection loss between circuits but also effectively avoids crosstalk caused by circuit wiring crossing.

[0052] Based on the above embodiments, as an optional embodiment, the circuit boards used in the DRFM digital circuit unit, power supply circuit and analog circuit unit are all microstrip circuit boards.

[0053] Specifically, in the embodiments of this utility model, the circuit boards used in the DRFM digital circuit unit, power supply circuit, and analog circuit unit are all microstrip circuit boards. A microstrip circuit board is a plate-shaped substrate material made of several thin films, through which fine lines are attached to achieve the transmission and processing of electrical signals. Microstrip circuit boards have the characteristics of small size, light weight, high transmission speed, wide frequency range, and small space occupation. The device of this utility model uses microstrip circuit boards to fabricate DRFM digital circuit units, power supply circuits and analog circuit units. Due to the layered arrangement of components, the shielding performance of the multi-layer boards is used to isolate each other, which effectively reduces crosstalk between circuits and improves the isolation degree compared with traditional processes. At the same time, it can also further improve the miniaturization and weight reduction of the interference device.

[0054] Based on the above embodiments, as an optional embodiment, the DRFM digital circuit unit, power supply circuit, analog circuit unit and developable circuit unit are assembled and cured using a curing agent.

[0055] Specifically, in the embodiments of this utility model, by using a curing agent to cure and assemble the DRFM digital circuit unit, power supply circuit and analog circuit unit, the vibration resistance and shock resistance of the device can be improved, and the adaptability of the device in various harsh environments can be enhanced.

[0056] The miniature radar jamming device of this utility model introduces DRFM technology, designs multiple frequency storage jamming branches, generates multiple modulation signals of different frequencies, and performs signal processing by combining the power combining and mixing functions of the analog circuit unit, thereby obtaining jamming signals with a wider frequency range and improving the device's jamming capability.

[0057] Meanwhile, by adopting a three-dimensional integrated multi-layer stacking assembly technology, the DRFM digital circuit unit and analog circuit unit are set up in layers, which can greatly reduce the space occupied by the circuit modules, greatly improve the miniaturization level of the device, and make the device more reliable with a high level of integration.

[0058] It is understood that the various numerical designations used in the embodiments of this utility model are merely for the convenience of description and are not intended to limit the scope of the embodiments of this utility model.

[0059] It should be understood that expressions such as "comprising" and "may include" used in this invention indicate the presence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this invention, terms such as "comprising" and / or "having" are to be interpreted as indicating a particular characteristic, number, operation, constituent element, component, or combination thereof, but not to exclude the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0060] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the components can rotate relative to each other after connection. "Sliding connection" refers to a connection where the components can slide relative to each other after connection. The directional terms mentioned in the embodiments of this utility model, such as "top," "bottom," "inner," "outer," "left," and "right," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0061] Furthermore, in this embodiment of the invention, the mathematical concepts mentioned, such as symmetry, equality, parallelism, and perpendicularity, are all limitations relative to the current technological level, rather than absolute and strict mathematical definitions. Slight deviations are permissible; approximations of symmetry, equality, parallelism, and perpendicularity are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0062] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A miniature radar jamming device based on digital radio frequency storage technology, characterized in that, include: DRFM digital circuit units and analog circuit units are arranged in three dimensions and connected sequentially. The DRFM digital circuit unit includes multiple frequency storage interference branches, which are used to generate multiple modulation signals of different frequencies based on the input radio frequency signal; The analog circuit unit is used to perform power synthesis based on the multiple modulation signals of different frequencies, and to mix the synthesized signal with the local oscillation signal to output an interference signal within the target frequency range.

2. The miniature radar jamming device based on digital radio frequency storage technology according to claim 1, characterized in that, The DRFM digital circuit unit also includes a first mixer and a power divider connected in sequence, with the multiple output terminals of the power divider connected one-to-one with the input terminals of the multiple frequency storage interference branches. The first mixer is used to mix the radio frequency signal with the local oscillator signal; The power divider is used to output a second mixing signal with multiple target powers based on a first mixing signal output by the mixer; the target power is less than the power of the first mixing signal. Each of the aforementioned frequency storage interference branches is used to generate a modulation signal of the corresponding frequency based on the second mixing signal of the input target power.

3. The miniature radar jamming device based on digital radio frequency storage technology according to claim 2, characterized in that, Each of the frequency storage interference branches includes a first filter, an analog-to-digital converter, a memory, and a digital-to-analog converter connected in sequence; the filtering frequency band of the first filter in each of the frequency storage interference branches is different; The first filter is used to filter the second mixer signal of the input target power; The analog-to-digital converter is used to convert the filtered signal output by the first filter into a corresponding digital signal; The memory is used to store the digital signal; The digital-to-analog converter is used to convert the digital signal forwarded by the memory into a modulated signal of the corresponding frequency.

4. The miniature radar jamming device based on digital radio frequency storage technology according to claim 1, characterized in that, The analog circuit unit includes a multiplexed second filter, a power combiner, a local oscillator, and a second mixer; The input terminals of the multi-channel second filter are connected one-to-one with the output terminals of the multi-channel frequency storage interference branch; the output terminals of the multi-channel second filter are connected one-to-one with the multiple input terminals of the power combiner; the output terminal of the power combiner is connected to the first input terminal of the second mixer; and the output terminal of the local oscillator is connected to the second input terminal of the second mixer. The multi-channel second filter is used to filter and denoise each of the modulated signals to obtain the denoised signals of each channel. The power combiner is used to combine the denoised signals from each channel to obtain the combined signal; The second mixer is used to mix the synthesized signal with the local oscillation signal output by the local oscillator, and output an interference signal in the target frequency range.

5. The miniature radar jamming device based on digital radio frequency storage technology according to any one of claims 1-4, characterized in that, It also includes a power supply circuit unit; The power supply circuit unit is vertically arranged between the analog circuit unit and the DRFM digital circuit unit in a three-dimensional integrated manner; the analog circuit unit and the DRFM digital circuit unit are respectively electrically connected to the power supply circuit unit. The power supply circuit unit is used to supply power to the analog circuit unit and the DRFM digital circuit unit respectively.

6. The miniature radar jamming device based on digital radio frequency storage technology according to claim 5, characterized in that, Both the analog circuit unit and the power supply circuit unit are loss circuits with power values ​​lower than the target power value.

7. The miniature radar jamming device based on digital radio frequency storage technology according to claim 5, characterized in that, The circuit boards used in the DRFM digital circuit unit, the power supply circuit, and the analog circuit unit are all microstrip circuit boards.

8. The miniature radar jamming device based on digital radio frequency storage technology according to claim 7, characterized in that, The circuit board of the power supply circuit unit is connected to the circuit board of the DRFM digital circuit unit and the circuit board of the analog circuit unit via a via connection.

9. The miniature radar jamming device based on digital radio frequency storage technology according to claim 5, characterized in that, Also includes: Developable circuit units; The developable circuit unit is vertically arranged directly above the analog circuit unit using a three-dimensional integration method; The developable circuit unit is connected to the analog circuit unit.

10. The miniature radar jamming device based on digital radio frequency storage technology according to claim 9, characterized in that, The DRFM digital circuit unit, the power supply circuit, the analog circuit unit, and the developable circuit unit are assembled and cured using a curing agent.

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