C波段高滚降准周期环形宽带超材料吸波器设计

doi:10.16180/j.cnki.issn1007-7820.2024.12.006

Abstract

Abstract:

Digital microwave relay communication system is a multichannel communication system in which digital signals are transmitted by microwave relay. In order to improve the signal-to-noise ratio and reduce the bit error rate in this kind of communication, a C-band sharp roll down broadband metamaterial absorber is designed in study. The quasi-periodic ring resonant structure is used to realize the polarization insensitive broadband absorption effect. The absorption efficiency is more than 90% in the range of 7~8 GHz, and the rolling down coefficient of the absorption line can reach more than 0.8. Based on the common structure, a dielectric layer is added to the proposed metamaterial absorber, which protects the ring structure of the surface of the metamaterial absorber and increases the impedance matching ability of the absorber. The proposed design has the characteristics of simple structure, thin thickness, common material and sharpe roll down absorption, and has important application potential in the fields of detection, stealth, sensing, communication and so on.

Key words: metamaterial, quasi-periodic, C-band, sharp roll-down, polarization independent, electromagnetic resonance, resonance peak merging, broadband absorption

CLC Number:

TN92

SHAN Zhenhua, LIU Lang, LIU Hongfang, DOU Ligang, WANG Hailong, WAN Shicheng, Lü Bo, CHEN Wan. Design of C-Band Sharp Roll-down Quasi-Periodic Annular Wide-Banded Metamaterial Absorber[J].Electronic Science and Technology, 2024, 37(12): 37-41.

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References 21

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Design of C-Band Sharp Roll-down Quasi-Periodic Annular Wide-Banded Metamaterial Absorber

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