Low-profile absorption/transmission integrated anti-interference device with ultra-wide absorption band

An anti-jamming device and absorbing band technology, which is applied in the field of stealth radome, can solve problems such as inability to transmit signals, and achieve good electromagnetic anti-jamming effect

Inactive Publication Date: 2021-09-17
SHANXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the current traditional metamaterial absorber cannot transmit signals, the present invention proposes a method of cascading band-pass metasurfaces and absorbing metasurfaces to realize an integrated anti-jamming device for ultra-broadband absorption and narrowband transmission

Method used

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  • Low-profile absorption/transmission integrated anti-interference device with ultra-wide absorption band
  • Low-profile absorption/transmission integrated anti-interference device with ultra-wide absorption band
  • Low-profile absorption/transmission integrated anti-interference device with ultra-wide absorption band

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Embodiment 1

[0021] like Figure 1~3 As shown, a low-profile absorption / transmission integrated anti-jamming device with an ultra-wide absorption band includes an absorbing metasurface 1, an upper dielectric substrate 2, a bandpass metasurface 3, and a lower dielectric Substrate 4; The absorbing metasurface 1 is printed on the upper surface of the upper dielectric substrate 2; the bandpass metasurface 3 is printed on the upper surface of the lower dielectric substrate 4; the upper dielectric substrate 2 and the bandpass metasurface The middle of the metasurface 3 is an air layer; the centerline of the absorbing metasurface 1, the centerline of the upper dielectric substrate 2, the centerline of the bandpass type metasurface 3, and the centerline of the lower dielectric substrate 4 coincide;

[0022] The absorbing metasurface 1 is composed of M×M (M=9) units, each unit is composed of four 90° arc-shaped metal patches 5, and two adjacent 90° arc-shaped metal patches A chip resistor 6 is loa...

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Abstract

The invention is applied to the field of invisible radomes, and particularly relates to a low-profile absorption / transmission integrated anti-interference device with an ultra-wide absorption band. The device comprises an absorption type metasurface, a band-pass type metasurface and two layers of dielectric substrates, wherein the absorption type metasurface is printed on the upper surface of the upper-layer dielectric substrate; the band-pass metasurface is printed on the upper surface of the lower-layer dielectric substrate; an air layer is arranged between the upper-layer dielectric substrate and the band-pass metasurface. A unit structure of the absorption type metasurface is composed of four 90-degree arc-shaped metal patches, and a patch resistor is loaded in a gap between every two adjacent arc-shaped metal patches. Each unit of the band-pass metasurface is formed by etching a cross-shaped gap in the center of a square metal patch. According to the invention, ultra-wideband absorption can be realized at a lower frequency band, low-loss transmission can be realized at a higher frequency band, the problem that a traditional metamaterial wave absorber cannot transmit signals is solved, and the anti-interference device has great significance in development of the fields of electromagnetic protection and invisible radomes.

Description

technical field [0001] The invention is used in the field of stealth radome, and in particular relates to a low-profile absorption / transmission integrated anti-jamming device with an ultra-wide absorption band. Background technique [0002] In communication systems, electromagnetic interference has gradually become the focus of attention, and metamaterial absorbers have gradually become an important means to solve this problem. [0003] The structure of a traditional metamaterial absorber is mainly composed of a reflective layer and an absorbing layer, and the absorption function is realized by utilizing the resonance of the metal patch structure (M.Li, S.Xiao, Y.Bai and B.Wang, “An Ultrathin and BroadbandRadar Absorber Using Resistive FSS,” in IEEE Antennas and Wireless Propagation Letters, vol.11, pp.748-751, 2012.), in addition, the absorption layer can also be realized by loading lumped elements, such as loading lumped resistors ( Liu Lingyun, Zhang Zhengjun, Liu Lixin....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00H01Q17/00H01Q9/04H01Q13/10
CPCH01Q15/0086H01Q17/00H01Q9/0407H01Q13/10
Inventor 张文梅弓文剑陈新伟韩丽萍杨荣草苏晋荣刘宇峰
Owner SHANXI UNIV
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