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Material with impedance matched with air

A technology of air and material sheets, which is applied in the field of materials, can solve problems such as loss and electromagnetic wave reflection energy, and achieve the effect of reducing return loss and reflection

Active Publication Date: 2015-03-11
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a material with matching impedance and air for the defects of electromagnetic wave reflection and energy loss due to impedance mismatch in the prior art when electromagnetic waves propagate from air to adjacent media

Method used

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  • Material with impedance matched with air
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  • Material with impedance matched with air

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Embodiment Construction

[0021] The invention provides a material whose impedance matches air. Compared with the existing material, by changing the internal structure of the material, the impedance value of the material corresponding to the incident magnetic wave that needs to be matched is 0.8≤Z≤1.2.

[0022] The material includes a plurality of material sheets, each sheet includes two substrates and an artificial microstructure sandwiched between the two substrates, the two substrates are virtually divided into a plurality of substrate unit pairs arranged in an array, Each substrate unit pair sandwiches an artificial microstructure, and the substrate unit pair and the artificial microstructure attached to the substrate unit pair constitute a material unit, such as figure 1 As shown, the artificial microstructure such as figure 2 As shown, there are mutually orthogonal I-shaped shapes, and a plurality of line segments symmetrical to the midpoint of the I-shaped shapes are connected to the middle con...

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Abstract

The invention relates to a material with impedance matched with air. The material comprises at least one material sheet layer. Each of the material sheet layers comprises two substrates and artificial micro structures sandwiched between the two substrates, wherein the two substrates are virtually divided into a plurality of substrate unit pairs arranged in an array mode; an artificial micro structure is attached to the position between each substrate unit pair; and according to incident electromagnetic waves to be matched, an impedance value Z of the material is more than or equal to 0.8 and less than or equal to 1.2. The impedance value of the material is almost equal to the impedance value of the air, so that reflection generated when the incident electromagnetic waves enter the material from the air is reduced, namely, the return loss of the incident electromagnetic waves is reduced.

Description

technical field [0001] The present invention relates to a material, and more particularly, to a material whose impedance is matched to air. Background technique [0002] If the electromagnetic wave passes through materials with different impedances during transmission, it will be reflected at the interface. In order to reduce the reflection of electromagnetic waves and reduce energy loss, impedance matching needs to be considered in the transmission of electromagnetic waves. [0003] Metamaterial is a new type of artificial synthetic material, including an artificial microstructure with a certain pattern shape composed of metal wires and a substrate to which the artificial microstructure is attached. Multiple artificial microstructures are arranged in an array on the substrate. Playing a supporting role, it can be any material different from the artificial microstructure. The superposition of these two materials will produce an equivalent permittivity and magnetic permeabil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
Inventor 刘若鹏栾琳寇超锋
Owner KUANG CHI INST OF ADVANCED TECH