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Stepless frequency conversion directional antenna and electromagnetic remote control equipment countering device

A directional antenna, electromagnetic remote control technology, applied to antenna supports/installation devices, devices that make antennas work in different bands at the same time, antennas and other directions, which can solve the problems of inconvenient portability, large size of helical antennas, and inability to achieve stepless frequency conversion.

Pending Publication Date: 2020-07-28
吴永梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the electromagnetic wave control frequencies used to control drones, reconnaissance vehicles, robots, and other equipment are different, countermeasures that can only emit a single frequency of electromagnetic interference cannot solve the above security problems
[0003] The helical antenna is a kind of directional antenna. Its general structure includes a metal helix and a reflector. Generally, a helix is ​​set on a reflector to emit a specific electromagnetic wave frequency. If multiple electromagnetic wave frequencies need to be emitted, multiple One reflector and multiple helical wires with different radii, so the helical antenna with multiple transmission frequencies is relatively large and inconvenient to carry
Neither the existing directional antenna nor the omnidirectional antenna can realize the function of stepless frequency conversion

Method used

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  • Stepless frequency conversion directional antenna and electromagnetic remote control equipment countering device
  • Stepless frequency conversion directional antenna and electromagnetic remote control equipment countering device
  • Stepless frequency conversion directional antenna and electromagnetic remote control equipment countering device

Examples

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Effect test

Embodiment 1

[0024] Embodiment 1 A stepless frequency conversion directional antenna

[0025] Such as Figure 1-3 As shown, a stepless frequency conversion directional antenna in this embodiment includes a metal helix 1, a reflector 2, an interference signal generator, and a support rod 3 located at the axis of the metal helix 1. The metal helix 1 Located at the center of the reflector 2, the interference signal generator is connected to the metal helix 1 through a signal transmission feeder, and the interference signal generator adopts a numerical control frequency modulation signal generator, specifically, DDS technology can be used, and DDS technology has relatively Wide bandwidth, short frequency conversion time, high frequency resolution, etc., are widely used in high-precision frequency synthesis and arbitrary signal generation; the center of the reflector 2 is provided with a through hole A4, and the support rod 3 passes through the through hole A The through hole A is set along th...

Embodiment 2

[0029] Embodiment 2 A countermeasure device for electromagnetic remote control equipment

[0030] Such as Figure 4 As shown, the electromagnetic remote control device countermeasure device in this implementation includes an automatic driving car 13 with automatic driving function, an electric pan-tilt 14 arranged on the running mechanism, and the stepless frequency conversion directional antenna is arranged on the electric pan-tilt through a bracket 14, the walking mechanism is equipped with a controller, a detection device for detecting electromagnetic remote control equipment, and the interference signal generator. In this embodiment, the detection device is a camera, and the orientation of the camera and the orientation of the metal helix Consistently, the controller is respectively connected with the camera 15, the interference signal generator, the electromagnetic telescopic cylinder, the motor A, the motor B, and the electric pan-tilt circuit.

[0031] When working, ad...

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Abstract

The invention discloses a stepless frequency conversion directional antenna and an electromagnetic remote control equipment countering device. The stepless frequency conversion directional antenna comprises a metal spiral line, a reflecting plate, an interference signal generator and a supporting rod located at the axis of the metal spiral line, wherein the metal spiral line is located at the center of the reflecting plate, and the interference signal generator is connected with the metal spiral line through a signal transmission feeder line. By driving the reflecting plate and the metal spiral line to rotate relatively, the length and the number of turns of the metal spiral line on the front surface of the reflecting plate are adjusted, so that the metal spiral line on the front surface of the reflecting plate can emit electromagnetic waves corresponding to the frequency emitted by the interference signal generator. According to the electromagnetic remote control equipment counteringdevice, the stepless frequency conversion directional antenna is installed on the walking mechanism, so that the countering device automatically patrols to countering remote control equipment intruding into a forbidden zone.

Description

technical field [0001] The invention relates to the technical field of electromagnetic remote control equipment countermeasures such as unmanned aerial vehicles, in particular to a stepless frequency conversion directional antenna and an electromagnetic remote control equipment countermeasure device. Background technique [0002] With the development of electromagnetic remote control equipment technology such as drones, remote control reconnaissance vehicles, and remote control robots, the national military security, civil aviation security, and the security of some units that need to be kept secret, such as prisons, are seriously threatened. Along with the above-mentioned safety problem is outstanding, the technology of corresponding anti-electromagnetic remote control equipment needs to be developed urgently. However, since the control frequencies of electromagnetic waves used to control drones, reconnaissance vehicles, robots and other equipment are different, countermeas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q5/20H01Q15/14H01Q1/12H01Q1/32H04K3/00
CPCH01Q1/12H01Q1/3208H01Q1/3275H01Q1/36H01Q5/20H01Q15/14H04K3/825H04K2203/32
Inventor 瞿远航
Owner 吴永梅
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