Ultra-compact metamaterial wave-absorbing unit

A metamaterial, compact technology, applied in the direction of electrical components, magnetic/electric field shielding, antennas, etc., can solve problems such as difficult to use

Inactive Publication Date: 2014-04-23
CETC YANGZHOU BAOJUN ELECTRONICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional absorbing materials require a thicker size to obtain a better absorbing effect, but in the low frequency band, such as in the frequency range of 1-2GHz, the thickness of the absorbing material usually exceeds 10mm, which is practical in practical applications. It h

Method used

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  • Ultra-compact metamaterial wave-absorbing unit
  • Ultra-compact metamaterial wave-absorbing unit

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Embodiment 1

[0017] An ultra-compact metamaterial wave-absorbing unit, comprising: a first metal film 1, a rectangular dielectric layer 3 is arranged on the rectangular metal film 1, a second metal film 4 is arranged on the rectangular dielectric layer 3, and the first A metal film 1 is provided with a hollow 2, the hollow 2 is composed of a first C-shaped hollow 21 and a second C-shaped hollow 22, and the first C-shaped hollow 21 and the second C-shaped hollow 22 are arranged back to back, and the second The metal film 4 is made of a first C-shaped metal foil 41 and a second C-shaped metal foil 42, and the first C-shaped metal foil 41 and the second C-shaped metal foil 42 are arranged back to back, and the shape of the hollow 2 is consistent with that of the second metal foil. The shapes of the films 4 are similar to each other. The projection of the second metal film 4 on the first metal film 1 falls inside the hollow 2 of the first metal film 1 .

[0018] The following is the detailed ...

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Abstract

The invention discloses an ultra-compact metamaterial wave-absorbing unit, which comprises a first metal film, a rectangular medium layer is arranged on the rectangular first metal film, a second metal film is arranged on the rectangular medium layer, the first metal film is provided with a hollow, the hollow consists of a first C-shaped hollow and a second C-shaped hollow, moreover, the first C-shaped hollow and the second C-shaped hollow are arranged back to back, the second metal film consists of a first C-shaped metal foil and a second C-shaped metal foil, furthermore, the first C-shaped metal foil and the second C-shaped metal foil are arranged back to back, and the hollow is shaped like the second metal film. The ultra-compact metamaterial wave-absorbing unit has the advantages that: the ultra-compact metamaterial wave-absorbing unit is extremely thin, and the wave-absorbing property exceeds more than negative 15dB.

Description

technical field [0001] The invention relates to an ultra-compact metamaterial wave-absorbing unit. Background technique [0002] Traditional absorbing materials require a thicker size to obtain a better absorbing effect, but in the low frequency band, such as in the frequency range of 1-2GHz, the thickness of the absorbing material usually exceeds 10mm, which is practical in practical applications. It is severely restricted, especially in compact microwave circuits, and it is even more difficult to use. At the same time, the performance of traditional absorbing materials is only about -10dB, which is often difficult to meet the requirements in microwave circuits and antenna arrays. [0003] For this reason, it is necessary to invent a material with an extremely thin thickness and a wave-absorbing performance exceeding -15dB, and the present invention can just meet such design requirements. Contents of the invention [0004] The invention provides an ultra-compact metamate...

Claims

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Application Information

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IPC IPC(8): H01Q17/00H05K9/00
Inventor 张春华曹振新孔令仲
Owner CETC YANGZHOU BAOJUN ELECTRONICS
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