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A lightweight and downsized antenna for near-field testing

A light-weight, near-field technology, applied to antennas, electrical components, etc., can solve the problems of excessive size and weight of pyramid horn antennas, and achieve the effect of improving performance and reducing geometric size

Active Publication Date: 2017-11-03
BEIJING INST OF ENVIRONMENTAL FEATURES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a technical solution that can solve the problem that the size and weight of the pyramid horn antenna are too large

Method used

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  • A lightweight and downsized antenna for near-field testing
  • A lightweight and downsized antenna for near-field testing
  • A lightweight and downsized antenna for near-field testing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] See figure 1 , The lightweight and reduced-size antenna for near-field testing according to the present invention includes a horn antenna metal body 2, an elliptical arc-shaped dielectric loaded lens 1 arranged at the bottom of the horn antenna metal body 2, and a fixedly arranged horn antenna metal body 2. Cone-top waveguide coaxial converter 3.

[0032] See Figure 4 , 5 And 6, the dielectric loading lens 1 is an elliptical arc, including a first bottom surface arranged at the bottom of the horn antenna metal body 2, two elliptical arc-shaped first planes respectively arranged on the front side and the rear side of the first bottom, and Two elliptical arc-shaped first plane edges and first side surfaces fixedly connected to the left and right sides of the first bottom surface. The outer surface of the dielectric loading lens 1 is attached to the inner surface of the horn antenna metal body 2. Preferably, screw holes are provided on the first plane and the bottom of the ...

Embodiment 2

[0036] See figure 1 The lightweight and reduced-size antenna for near-field testing according to the present invention includes a horn antenna metal body 2, an elliptical arc-shaped dielectric loaded lens 1 arranged at the bottom of the horn antenna metal body 2, and a fixedly arranged horn antenna metal body 2. Cone-top waveguide coaxial converter 3.

[0037] See Figure 7 , 8 And 9, the dielectric loading lens 1 has an elliptical arc shape, including a first bottom surface arranged at the bottom of the horn antenna metal body 2, two elliptical arc-shaped first planes respectively arranged on the front side and the back side of the first bottom, and Two elliptical arc-shaped first plane edges and first side surfaces fixedly connected to the left and right sides of the first bottom surface. The outer surface of the dielectric loading lens 1 is attached to the inner surface of the horn antenna metal body 2. Preferably, screw holes are provided on the first plane and the bottom of...

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PUM

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Abstract

The invention relates to a light-weight and reduced-size antenna for near-field testing, which comprises a horn antenna metal body, an elliptical arc-shaped dielectric loading lens arranged at the aperture of the horn antenna metal body, and fixedly arranged on the horn antenna A waveguide-to-coaxial converter at the top of the cone of the metal body of the antenna. According to the lightweight and reduced-size antenna for near-field testing of the present invention, the phase characteristics of the radiated wave can be corrected in a short space distance by means of the converging effect of the curve design of the elliptical arc-shaped dielectric loading lens, so that it can move to a free The transition section of the space matching is shortened, so that it is closer to uniform irradiation, effectively reducing the geometric size of the near-field test antenna and the weight load of the test system, and improving the performance of the near-field test system.

Description

Technical field [0001] The invention relates to the technical field of radar target characteristic testing, in particular to an antenna for near-field testing. Background technique [0002] The related technical background of the present invention is described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] The near-field test uses a known probe to scan the surface of the tested antenna to obtain the amplitude and phase distribution on the tested antenna surface, and then use the Fast Fourier Transformation (FFT) to enter the field The data is converted into far-field data. The antenna is an indispensable part of the test system, and its performance directly affects the test work. [0004] At present, the antenna of the near-field test system is generally a pyramid horn type, and the appearance has an important influence on the performance of the pyramid horn antenna. The near-field test system requires the pyramid horn ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/08
Inventor 白杨高超
Owner BEIJING INST OF ENVIRONMENTAL FEATURES