Multi-Band Tunable Chiral Metamaterial for Asymmetric Transmission and Absorption of Linearly Polarized Electromagnetic Waves

被引：13

作者：

Huang, Chen Xi ^{[1
]}

Zhang, Jing Jing ^{[1
]}

Wu, Lin ^{[3
]}

Zhang, Cheng ^{[2
]}

Yang, Jin ^{[1
]}

Yang, Liu Xi ^{[1
]}

Ke, Jun Chen ^{[1
]}

Bai, Lin ^{[1
]}

Cheng, Qiang ^{[1
]}

Cui, Tie Jun ^{[1
]}

机构：

[1] Southeast Univ, State Key Lab Millimeter Waves, Synerget Innovat Ctr Wireless Commun Technol, Nanjing 210096, Peoples R China

[2] Wuhan Univ Technol, Sch Sci, Hubei Engn Res Ctr RF Microwave Technol & Applica, Wuhan 430070, Peoples R China

[3] Westlake Univ, Sch Engn, Hangzhou 310024, Peoples R China

来源：

ADVANCED THEORY AND SIMULATIONS | 2020年 / 3卷 / 12期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

asymmetric transmission; chiral metamaterials; tunable systems;

D O I：

10.1002/adts.202000179

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Due to the importance of chiral materials in realizing many exotic phenomena, a chiral metamaterial incorporated with active components of PIN diodes for the flexible control of asymmetric transmission (AT) of linearly polarized electromagnetic (EM) waves at microwave frequency is proposed. A transfer-matrix approach and full-wave simulations for cascading anisotropic impedance sheets is applied to analyse the physical mechanism of the structure, enabling the device with optimal multi-band AT effect. The experimental results demonstrate that the robust real-time controls of polarization conversion and AT effect for the linearly polarized waves can be achieved by altering the applied biasing voltage, giving rise to the tunability in three frequency bands of 9-10.5 GHz, 11-11.8 GHz, and 12.2-12.8 GHz. Furthermore, the tunable absorption can also be achieved, making it a good candidate in intelligent EM systems.

引用

页数：12

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