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Antenna protecting cover

An antenna shield and sheet technology, which is applied in the field of antenna shields with impedance matching function, can solve the problem of signal quality weakening, and achieve the effect of improving quality and good electromagnetic permeability

Active Publication Date: 2014-09-03
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the addition of the antenna shield, the electromagnetic waves emitted from the antenna to the free space or from the free space to the antenna will be partially reflected by the shield, weakening the signal quality

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] Please refer to figure 1 , figure 1 It is a sectional view of the antenna shield of the present invention. The antenna 1000 is disposed inside the antenna shield for receiving or transmitting electromagnetic waves. The shape of the antenna shield is not limited to the shape shown in the figure, and various shapes such as a cube, a cuboid, and an ellipse can be formed according to actual needs. The antenna shield of the present invention includes a base layer 10 , a first impedance matching layer 20 and a second impedance matching layer 30 symmetrically arranged on both sides of the base layer 10 . The impedance of the first impedance matching layer 10 and the second impedance matching layer 30 is equal to the free space impedance on the side close to the free space, and the impedance on the side close to the base layer 10 is equal to the impedance of the base layer 10, from the free space impedance to the impedance of the base layer 10 changes linearly. The impedanc...

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Abstract

The present invention relates to an antenna shield, which includes a base layer, a first impedance matching layer and a second impedance matching layer symmetrically attached to the surfaces of opposite sides of the base layer, and the arrangement of the first impedance matching layer and the second impedance matching layer The overall impedance of the antenna shield gradually changes from the impedance of the free space to the impedance of the base layer and gradually changes to the impedance of the free space. The invention can make the antenna inside the antenna protective cover receive and emit electromagnetic waves, and the electromagnetic waves do not emit when passing through the antenna protective cover, thereby improving the signal quality.

Description

technical field [0001] The invention relates to an antenna protective cover, in particular to an antenna protective cover with impedance matching function made by metamaterial technology. Background technique [0002] Mobile communication is one of the important systems of modern information transmission and communication. With the continuous increase of business volume and the continuous development of cities, the coverage of mobile communication networks is constantly expanding and improving; with the progress and development of society, mobile communication is becoming more and more oriented to public. [0003] The base station antenna is an important part of the mobile communication antenna feeder system. It is like the antennae of the entire mobile communication system and plays a pivotal role in the communication process. Due to the important role of the base station antenna, the base station antenna must still work normally in various harsh environments such as stron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42
Inventor 刘若鹏徐冠雄张洋洋方能辉
Owner KUANG CHI INST OF ADVANCED TECH