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Ultrathin broadband metamaterial wave absorber unit

A technology of metamaterials and wave absorbers, applied in electrical components, antennas and other directions, can solve the problems of difficult processing technology and unfavorable practical application, and achieve the effects of easy preparation and processing, simple processing and easy realization.

Pending Publication Date: 2020-07-10
杭州灵芯微电子有限公司
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  • Abstract
  • Description
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Problems solved by technology

However, the processing technology is difficult, which is not conducive to practical application

Method used

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  • Ultrathin broadband metamaterial wave absorber unit
  • Ultrathin broadband metamaterial wave absorber unit
  • Ultrathin broadband metamaterial wave absorber unit

Examples

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Embodiment Construction

[0019] Below in conjunction with embodiment the present invention will be further described.

[0020] Such as Figure 1-2 As shown, an ultra-thin broadband metamaterial absorber unit is characterized in that: the basic unit includes a surface metal structure layer 1, an intermediate dielectric plate layer 3 and a bottom metal grounding 4 arranged sequentially from top to bottom; the surface layer The metal structure layer 1 includes a first metal square ring 11, a second metal square ring 12, and a first square metal patch 13 attached to the upper surface of the upper dielectric plate layer 3. There are openings on the upper and lower borders of the first metal square ring 11. , and form a closed loop through the connection of the first resistance patch 21 and the fourth resistance patch 24, the upper and lower frames of the second metal square ring 12 have openings, and are connected through the second resistance patch 22 and the third resistance patch 23 Connect to form a c...

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Abstract

The invention discloses an ultrathin broadband metamaterial wave absorber unit. The unit comprises a surface metal structure layer, an intermediate dielectric plate layer and a bottom metal ground which are arranged in sequence. The surface metal structure layer comprises a first metal square ring, a second metal square ring and a first square metal patch, the upper and lower frames of the first metal square ring and the second metal square ring are provided with openings respectively and are connected through a resistor patch to form a closed loop, the first square metal patch is located in the center, and the whole surface metal structure layer is in central symmetry. By adopting the metal square ring structure loaded with the resistance patch element, electromagnetic waves are absorbedin a relatively wide frequency range, and meanwhile, the metal square ring structure is simple in structure and easy to process and manufacture.

Description

technical field [0001] The invention belongs to the technical field of new artificial electromagnetic materials, in particular to an ultra-thin broadband metamaterial wave absorber unit in the microwave section. Background technique [0002] Metamaterials are three-dimensional artificial composite materials that possess unique electromagnetic properties compared to natural materials. Metamaterials are composed of periodic or non-periodic arrangements of basic units whose structural size is much smaller than the wavelength. By rationally designing and optimizing the structure of the metamaterial unit, any equivalent electromagnetic parameters can be obtained, which greatly expands the control space for electromagnetic waves. Due to their rich electromagnetic properties, metamaterials have attracted extensive attention from researchers, enabling diverse applications such as superlenses, electromagnetic black holes, and perfect wave absorbers, among others. In addition to wor...

Claims

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Application Information

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IPC IPC(8): H01Q15/00H01Q17/00
CPCH01Q15/0086H01Q17/008
Inventor 陈磊
Owner 杭州灵芯微电子有限公司
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