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Compact range generation device

A technology for generating devices and constricting fields, applied in the directions of electromagnetic field characteristics, antenna radiation patterns, etc., can solve the problems of high cost, large smooth reflection surface, difficult process, etc., and achieve the effect of easy manufacturing and low cost.

Active Publication Date: 2012-09-19
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to overcome the shortcomings of the prior art that the production of smooth reflective surfaces must be large, and the process is difficult, complicated, and expensive, and to provide a compact field generator based on metamaterials, which uses metamaterials to manufacture compact field antennas part, convert spherical electromagnetic waves into planar electromagnetic waves, easy to manufacture and cheap

Method used

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Embodiment Construction

[0044] Such as Figure 1 to Figure 3 As shown, a compact field generating device according to the present invention includes a feed source 1 and a metamaterial panel 100 arranged in front of the feed source 1. The metamaterial panel 100 includes a core layer 10 and symmetrically distributed on both sides of the core layer 10. Impedance matching layer 20 on the side surface, the core layer 10 includes a plurality of core layer sheets 11 with the same thickness and the same refractive index distribution, the core layer sheet layer includes a sheet-shaped first substrate 13 and is arranged at the second A plurality of first artificial microstructures 12 on a substrate 13, the central axis Z1 of the feed source 1 and the central axis Z2 of the metamaterial panel 100 have a certain angle θ, namely figure 1 The angle between the central axis Z1 and the straight line Z3 (Z3 is a line parallel to Z1), the feed source 1 is not on the central axis Z2 of the metamaterial panel 100 . The...

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Abstract

The invention discloses a compact range generation device. The compact range generation device comprises a feed source and a metamaterial panel which is arranged above the front part of the feed source, wherein the metamaterial panel comprises a core layer and impedance matching layers which are symmetrically distributed on the surfaces of two sides of the core layer; the core layer comprises a plurality of core layer laminates which are equal in thickness and equal in refractive index distribution; each core layer laminate comprises a first base material which is sheet-like and a plurality of first artificial microstructures which are arranged on the first base material; and the refractive index distribution of the core layer laminates is designed to accord with certain conditions, so electromagnetic wave which is sent by the feed source can be emitted in a plane wave form through the metamaterial panel. According to the compact range generation device provided by the invention, the conventional parabolic reflecting surface is replaced by the sheet-like metamaterial panel. The compact range generation device is easy to manufacture and process and low in cost.

Description

technical field [0001] The invention relates to the field of antenna testing, and more specifically, relates to a compact field generating device based on metamaterials. Background technique [0002] The compact field is a test device that changes the spherical wave emitted by the feed source into a plane wave by relying on smooth reflective surfaces, including single reflectors and double reflectors, within a short distance. The plane wave environment it generates can fully meet the test requirements of the antenna pattern, so as to achieve the purpose of testing the antenna in a short distance. The compact field system can be divided into a compact field antenna part and a microwave anechoic chamber part. In the prior art, the compact field antenna part is a set of equipment that uses a precise reflector to convert the spherical wave generated by the point source into a plane wave within a short distance. Usually, the position of the antenna part is accurately installed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08G01R29/10
Inventor 刘若鹏季春霖岳玉涛李星昆
Owner KUANG CHI INST OF ADVANCED TECH
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