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GNSS antenna array for interfering unmanned aerial vehicle

A technology for unmanned aerial vehicles and antenna arrays, applied in antenna arrays, antennas, interference protection, etc., can solve the problems of short effective distance and low antenna gain, and achieve the effects of long effective distance, high antenna gain, and interference avoidance

Inactive Publication Date: 2022-05-13
ZHONGTIANXUN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The other is that the hand-held antenna has low gain and the effective distance of interference is short

Method used

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  • GNSS antenna array for interfering unmanned aerial vehicle
  • GNSS antenna array for interfering unmanned aerial vehicle
  • GNSS antenna array for interfering unmanned aerial vehicle

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Embodiment

[0046] GNSS antenna array for jamming unmanned aerial vehicles, the structure of the antenna array is detailed in Figure 1-Figure 21 . Such as Figure 1-Figure 4 As shown, the antenna array includes a first antenna 1, a second antenna 2, a third antenna 3 and a metal plate 4, wherein the second antenna 2 is provided with two, and the length of the metal plate 4 is 1130mm, and the width is 1000mm, the thickness is 2mm, and the material is aluminum alloy. The first antenna 1, the second antenna 2 and the third antenna 3 are all arranged on the upper surface of the metal plate 4, and the metal plate 4 is provided with 4 A signal interface 401, the first antenna 1, the two second antennas 2 and the third antenna 3 are respectively connected to one of the signal interfaces 401, the first antenna 1, the second antenna 2 and the third antenna 3 are all connected to the motherboard of the jammer in the prior art through the signal interface 401, so as to receive jamming signals.

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Abstract

The invention discloses a GNSS (Global Navigation Satellite System) antenna array for interfering an unmanned aerial vehicle. The antenna array comprises a first antenna, a second antenna, a third antenna and a metal plate, the first antenna, the second antenna and the third antenna are all arranged on the metal plate, the metal plate is provided with a plurality of signal interfaces, and the first antenna, the second antenna and the third antenna are respectively connected with one signal interface. The antenna array can interfere with all frequency bands of the GNSS of the unmanned aerial vehicle, so that the interference frequency band is wide, interference signals emitted by the antenna array are narrow in wave beam, the antenna gain is high, the effective distance is farther, and due to the fact that the interference signals are narrow in wave beam, the antenna interference direction angle is small and is within 25 degrees, and interference to other devices can be avoided.

Description

technical field [0001] The invention relates to the technical field of UAV signal interference, in particular to a GNSS antenna array for interfering with UAV aircraft. Background technique [0002] At present, the existing UAV jammers on the market interfere with the three frequency bands of WIFI2.4GHz, WIFI5.8GHz, and GPSL1. However, the control and image transmission frequency bands of drones on the market are not only WIFI, but 400MHz and 900MHz. , 1.4GHz and other public frequency bands, and the positioning system is not only GPS L1, but also BD, GLONASS, GALIEO, QZSS and other positioning systems. At present, the GNSS positioning system is one of the key technologies to support the safe flight of UAVs. The unmanned aerial vehicle knows its precise position when transmitting video and images, so a GNSS signal receiver is installed on the unmanned aerial vehicle, that is, a built-in GNSS module. In any stage of the UAV's take-off, navigation, hovering, and return, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/24H01Q1/00H01Q1/36H01Q21/00H01Q1/50H04K3/00
CPCH01Q21/24H01Q21/0006H01Q1/002H01Q1/36H04K3/825H04K3/90
Inventor 周凯淦杨培培黄琼黄烈云刘华涛邹毅韩振宇
Owner ZHONGTIANXUN COMM TECH
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