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A Direction Backtracking System Based on Angular Reflective Antenna Array

An antenna array and direction backtracking technology, applied in the direction of antennas, electrical components, etc., can solve the problems of only reflected energy, low echo power of the transmitter, and complex design of the feeding network, achieving high echo power and facilitating modularization The effect of the design

Active Publication Date: 2017-01-18
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, passive radar transmitters have low echo power and can only reflect energy, and cannot adjust the transmission power of radio frequency energy; the design of the feed network of equal electric length of the active VanAtta array is more complicated; the active phase conjugate array is affected by Simultaneously arriving multi-frequency signals and broadband signals have a greater impact

Method used

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  • A Direction Backtracking System Based on Angular Reflective Antenna Array
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  • A Direction Backtracking System Based on Angular Reflective Antenna Array

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Embodiment 1

[0025] Such as figure 1 The direction traceback system based on the angle reflection antenna array shown is composed of a planar antenna array board 1 located in the XOY plane, a planar antenna array board 2 in the XOZ plane and a planar antenna array board 3 in the YOZ plane. Three planar antenna arrays The plates are perpendicular to each other, and the distance between every two planar antenna array plates satisfies the far-field condition, that is, the distance between the electromagnetic wave and the radiation source satisfies the relationship: ( represents the aperture of the antenna, represents the wavelength of an electromagnetic wave). The radiation surfaces of the three planar antenna array boards form a corner reflection structure. The working mode of the antenna unit on each planar antenna array board is duplex, that is, the signal received by the antenna unit is delayed or stored and then transmitted through the unit. The shape of the planar antenna array b...

Embodiment 2

[0042] A direction backtracking system based on an angle reflective antenna array, such as Figure 5 As shown, it consists of two mutually perpendicular planar array boards 1 and 2, and the distance between the two planar antenna array boards satisfies the far-field condition ( represents the aperture of the antenna, represents the wavelength of the electromagnetic wave), the radiation surfaces of the two planar antenna array boards form an angular reflection structure, and the incident plane 22 is as Figure 5 shown. The structure of each planar antenna array board, the structure and connection relationship of the radio frequency channel 5 and the digital frequency storage 6 in this system are the same as those in the first embodiment. The process of realizing azimuth backtracking by radio frequency signal is as follows: Figure 5 indicated by the middle arrow. The working mode of the antenna unit on each planar antenna array board is duplex, that is, the signal recei...

Embodiment 3

[0045] A direction backtracking system based on angle reflection antenna array, which is composed of at least two planar antenna array boards, each two planar antenna array boards are perpendicular to each other, and the distance between each two planar antenna array boards satisfies the far-field condition, namely The distance between the electromagnetic wave and the radiation source satisfies the relation: ( represents the aperture of the antenna, Represents the wavelength of electromagnetic waves), and the radiation surface of the planar antenna array plate forms an angular reflection structure. The working mode of the antenna unit on each planar antenna array board is duplex, that is, the signal received by the antenna unit is delayed or stored and then transmitted through the unit.

[0046] The structure of one or two planar antenna array boards in the system includes a planar radiation unit 4, a radio frequency channel 5 and a phase shifter. One end of the radio fre...

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Abstract

The invention discloses a direction backtracking system based on an angular reflection antenna array, which belongs to the technical fields of radar and communication engineering. The invention consists of at least two mutually perpendicular plane antenna array boards, the distance between the plane antenna array boards satisfies the far-field relationship, and each plane antenna array board is composed of a plane radiation unit, a transceiver radio frequency channel and a digital frequency storage. The present invention utilizes the mirror reflection of a plurality of plane antenna arrays to realize the direction backtracking of the radio frequency signal, and in the process of realizing the direction backtracking, it is not necessary to measure or estimate the incident direction of the signal; The function of the frequency converter realizes the power control and delay modulation of the return signal. The invention is suitable for the return of common signals in radar systems and positioning systems without azimuth estimation of the signal source, and is especially suitable for the fields of suppression and deception interference in the field of electronic countermeasures.

Description

technical field [0001] The invention belongs to the technical field of communication and radar engineering, and in particular relates to a direction backtracking system based on an angle reflection antenna array. Background technique [0002] Direction backtracking refers to reflecting the received electromagnetic signal back through the original direction. There are two ways to implement the direction backtracking system: active and passive. Passive direction tracking systems such as radar reflectors (also known as corner reflectors) commonly used in radar engineering, active azimuth tracking systems are usually implemented in the form of antenna arrays, currently there are mainly VanAtta arrays and phase conjugate arrays (PON arrays) ) Two implementations. The VanAtta array is composed of multiple pairs of antenna elements symmetrical to the geometric center of the array, and each pair of antenna elements is connected by a transmission line with the same electrical lengt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/18
Inventor 杜海明魏晓玉郑晓婉杨倩史坤峰赵红梅乔幸帅付川南王园璞
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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