Dual-band cooperative interference circuit module for anti-unmanned aerial vehicle system
By using a dual-band collaborative jamming circuit module, the problem that existing anti-drone systems cannot deal with multi-band drones is solved, achieving effective jamming of multi-band drones and high-efficiency endurance of the equipment, which is suitable for real-time countermeasures in complex electromagnetic environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROCKET FORCE UNIV OF ENG
- Filing Date
- 2025-07-12
- Publication Date
- 2026-05-26
AI Technical Summary
Existing countermeasures against drones are ineffective against drones that dynamically switch between multiple frequency bands, have low power efficiency and are prone to accidentally damaging legitimate communication equipment. They also lack multi-module coordination mechanisms, resulting in short battery life, high response latency, and difficulty in adapting to real-time combat in complex electromagnetic environments.
The dual-band cooperative interference circuit module, including a signal source, radio frequency unit and timing control unit, is adopted. The 2.4GHz/5.8GHz signal synchronous coverage is achieved through the frequency division design of the power amplifier. The timing control unit coordinates the time-sharing operation of the two amplifiers, and the power management unit provides dual voltage dynamic adaptation, which improves power efficiency and extends the device's battery life.
It effectively interferes with multi-band drones, reduces signal interference, and improves the interference stability and endurance of the equipment, making it suitable for real-time countermeasures in complex electromagnetic environments.
Smart Images
Figure CN224289808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of communication technology, and more specifically, to a dual-band cooperative jamming circuit module for anti-drone systems. Background Technology
[0002] With the rapid popularization of drone technology, its application scenarios have expanded from military reconnaissance and border monitoring to civilian logistics, aerial photography, and public event security. However, security threats such as illegal intrusion, privacy theft, and airspace conflicts have intensified, posing serious challenges to critical facilities, sensitive airspace, and public safety. Existing countermeasures mainly rely on electromagnetic interference (RF interference) and navigation signal deception, but most devices have significant limitations: First, traditional single-band jammers (such as those covering only 2.4GHz or 5.8GHz) cannot effectively counter advanced drones that support dynamic switching across multiple frequency bands, resulting in interference blind spots; second, while wideband full-band jamming can cover multiple frequency bands, it has low power efficiency and is prone to accidentally damaging legitimate communication equipment, making it difficult to meet the requirements for precise countermeasures; third, existing systems lack multi-module coordination mechanisms, and the coupling between RF interference and power control is insufficient, resulting in short device endurance, high response latency, and difficulty in adapting to real-time countermeasures in complex electromagnetic environments. Utility Model Content
[0003] This invention provides a dual-band cooperative jamming circuit module for anti-drone systems to solve the problems mentioned in the background art.
[0004] A dual-band cooperative jamming circuit module for an anti-drone system includes a signal source, a radio frequency unit, and a timing control unit. The signal source includes a first signal source and a second signal source. The radio frequency unit includes a first power amplifier and a second power amplifier, which are respectively connected to the first signal source and the second signal source. The timing control unit includes a first timing control unit and a second timing control unit, which are respectively connected to the first timing control unit and the second timing control unit, and receive control signals from the timing control unit.
[0005] Furthermore, it also includes a power management unit, which is connected to the radio frequency unit and provides dual voltage output to the radio frequency unit.
[0006] Furthermore, the power management unit employs a dual-channel synchronous buck controller to provide dual voltage outputs for the radio frequency unit.
[0007] Furthermore, filtering circuits are provided between the signal source and the first power amplifier, and between the signal source and the second power amplifier.
[0008] Furthermore, filter circuits are provided between the first power amplifier and the antenna, and between the second power amplifier and the antenna.
[0009] Furthermore, the first power amplifier is an SE5003L1-R, and the second power amplifier is an ACPM-5007.
[0010] Furthermore, the input terminal of the signal source is equipped with an impedance matching circuit, which uses a digital potentiometer.
[0011] A counter-drone system is also provided, including the dual-band cooperative jamming circuit module for counter-drone systems as described above.
[0012] This invention proposes a novel solution that achieves synchronous coverage of 2.4GHz / 5.8GHz dual-band signals through a frequency-division design of the power amplifier in the radio frequency unit, effectively addressing multi-band UAV targets. The timing control unit precisely coordinates the time-sharing operation of the two amplifiers, avoiding signal interference and reducing power consumption. The dual-voltage dynamic adaptation technology of the power management unit provides optimal power supply for high and low frequency bands respectively, improving power efficiency. The modular integrated design of this solution significantly enhances interference stability and extends the device's battery life, making it suitable for dual-band coordinated suppression of UAVs in complex electromagnetic environments. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the architecture of the dual-band cooperative jamming circuit module used in the anti-drone system in the embodiment;
[0014] Figure 2 This is a circuit diagram of a dual-band cooperative jamming circuit module used in an anti-drone system in the embodiment. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.
[0016] This application provides a dual-band cooperative jamming circuit module for anti-drone systems, such as... Figures 1-2As shown, the module includes a signal source, an radio frequency (RF) unit, and a timing control unit. The signal source includes a first signal source and a second signal source. The RF unit includes a first power amplifier and a second power amplifier, which are respectively connected to the first and second signal sources. The timing control unit includes a first timing control unit and a second timing control unit, which are respectively connected to the first and second signal sources, receiving control signals from the timing control unit. It also includes a power management unit connected to the RF unit, providing dual-voltage output to the RF unit.
[0017] Specifically, the signal source uses a V2327-10 voltage-controlled oscillator. The input terminal of the signal source is equipped with an impedance matching circuit. A digital potentiometer group is used to achieve impedance matching of the signal source, which can effectively reduce reflections and standing waves, and ensure that the signal maintains integrity and stability during transmission.
[0018] The power management unit includes a dual-path synchronous buck controller (ETA9740) with built-in protection circuitry, and a power supply switching unit (AP4953A). The dual-path synchronous buck controller is responsible for converting the input voltage to the system's 3.4V and 5V power supplies and monitoring the power supply status to prevent overvoltage. The power supply switching unit uses a MOSFET switching array to dynamically switch between the 3.3V and 5V power supply paths, ensuring optimal power supply to the two power amplifiers.
[0019] The timing control unit includes a timing controller (NE555DR), which indirectly controls two power amplifiers in the radio frequency unit through a control signal source to coordinate interference signals in different frequency bands. The NE555DR generates a 20kHz PWM signal to control the enable timing of the first and second power amplifiers.
[0020] The radio frequency (RF) unit includes two power amplifiers, one for the 5 GHz band (SE5003L1-R) and the other for the 2.4 GHz band (ACPM-5007). These two amplifiers receive synchronization control signals (CLK1 and CLK2) from the timing control unit to ensure coordinated interference on both bands. The RF output interface sends the amplified interference signal to the antenna to jam the drone.
[0021] The first power amplifier is an SE5003L1-R, and the second power amplifier is an ACPM-5007. The SE5003L1-R is a power amplifier operating at 5.8 GHz, packaged in a QFN-20 package, and features a three-stage amplification circuit. The ACPM-5007 is a power amplifier operating at 2.4 GHz, packaged in a QFN-10 package, and integrates a directional coupler, thus eliminating the need for external discrete components.
[0022] By controlling the ACPM-5007 to operate in high power mode (VCTRL>2.7V), the gain can reach 28dB. When operating in bypass mode (VCTRL<0.8V), the gain is -2dB. When a target signal is detected, it switches to high power mode within 5μs, thereby interfering with the target signal.
[0023] Modern drones commonly employ frequency-hopping technology (such as FHSS), making it difficult for existing fixed-band jamming devices to track target frequencies in real time. Frequency-hopping communication offers strong anti-jamming capabilities because the signal rapidly switches between multiple frequencies. To suppress such signals, the jammer needs to increase its power to a sufficiently high level within a very short time to cover the target frequency; otherwise, the target signal will jump to another frequency, rendering the jamming ineffective. Therefore, a rapid increase in instantaneous power is crucial.
[0024] A power ramp-up time of less than 5 microseconds means that the jamming device can boost its power to the required level in a very short time, effectively covering the current frequency before the target signal hops to the next frequency, thus achieving a suppression effect. This involves factors such as the response speed of the power amplifier, circuit design, and control timing.
[0025] Filtering circuits are provided between the signal source and the first power amplifier, and between the signal source and the second power amplifier. Filtering circuits are also provided between the first power amplifier and the antenna, and between the second power amplifier and the antenna. The filtering circuits can be implemented using capacitors and inductors.
[0026] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and all such modifications or substitutions should be within the scope of the present invention.
Claims
1. A dual band coordinated jamming circuit module for counter unmanned aerial vehicle system, characterized in that, It includes a signal source, a radio frequency unit, and a timing control unit. The signal source includes a first signal source and a second signal source. The radio frequency unit includes a first power amplifier and a second power amplifier. The first power amplifier and the second power amplifier are respectively connected to the first signal source and the second signal source. The timing control unit includes a first timing control unit and a second timing control unit. The first signal source and the second signal source are respectively connected to the first timing control unit and the second timing control unit, and receive control signals from the timing control unit.
2. The dual band coordinated jamming circuit module for counter-UAS systems of claim 1, wherein, It also includes a power management unit, which is connected to the radio frequency unit and provides dual voltage output to the radio frequency unit.
3. The dual-band cooperative jamming circuit module for anti-drone systems as described in claim 2, characterized in that, The power management unit uses a dual-channel synchronous buck controller to provide dual voltage outputs for the radio frequency unit.
4. The dual-band cooperative jamming circuit module for anti-UAV systems as described in claim 1, characterized in that, A filter circuit is provided between the signal source and the first power amplifier, and between the signal source and the second power amplifier.
5. The dual-band cooperative jamming circuit module for anti-drone systems as described in claim 1, characterized in that, A filter circuit is provided between the first power amplifier and the antenna, and between the second power amplifier and the antenna.
6. The dual-band cooperative jamming circuit module for anti-UAV systems as described in claim 1, characterized in that, The first power amplifier is SE5003L1-R, and the second power amplifier is ACPM-5007.
7. The dual-band cooperative jamming circuit module for anti-drone systems as described in claim 1, characterized in that, The input terminal of the signal source is equipped with an impedance matching circuit.
8. The dual-band cooperative jamming circuit module for anti-drone systems as described in claim 7, characterized in that, The impedance matching circuit uses a digital potentiometer.
9. An anti-drone system, characterized in that, Includes the dual-band cooperative jamming circuit module for anti-drone systems as described in any one of claims 1-7.