中国物理B ›› 2012, Vol. 21 ›› Issue (11): 117801-117801.doi: 10.1088/1674-1056/21/11/117801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Metamaterial absorbers realized in X-band rectangular waveguide

黄勇军a, 文光俊a, 李建a, 钟靖平a, 王平a, 孙元华a, O. Gordona, 朱卫仁b   

  1. a Key Laboratory of Broadband Optical Fiber Transmission & Communication Networks, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;
    b Advanced Computing and Simulation Laboratory (AχL), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, Victoria 3800, Australia
  • 收稿日期:2012-03-09 修回日期:2012-05-09 出版日期:2012-10-01 发布日期:2012-10-01
  • 基金资助:
    Project supported by the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110185110014) and the Fundamental Research Funds for the Central Universities, China (Grant No. E022050205).

Metamaterial absorbers realized in X-band rectangular waveguide

Huang Yong-Jun (黄勇军)a, Wen Guang-Jun (文光俊)a, Li Jian (李建)a, Zhong Jing-Ping (钟靖平)a, Wang Ping (王平)a, Sun Yuan-Hua (孙元华)a, O. Gordona, Zhu Wei-Ren (朱卫仁 )b   

  1. a Key Laboratory of Broadband Optical Fiber Transmission & Communication Networks, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;
    b Advanced Computing and Simulation Laboratory (AχL), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, Victoria 3800, Australia
  • Received:2012-03-09 Revised:2012-05-09 Online:2012-10-01 Published:2012-10-01
  • Contact: Huang Yong-Jun E-mail:yongjunh@uestc.edu.cn
  • Supported by:
    Project supported by the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110185110014) and the Fundamental Research Funds for the Central Universities, China (Grant No. E022050205).

摘要: In this paper, we demonstrate six types of metamaterial absorbers (MMAs) by measuring their absorptivities in an X-band (8-12 GHz) rectangular waveguide. Some of the MMAs have been demonstrated previously by using the free space measurement method, and the others are proposed firstly in this paper. The measured results show that all of the six MMAs exhibit high absorptivities above 98%, which have the similar absorbing characteristics comparing to those measured in the free space. The numerically obtained surface current densities for each MMA show that the absorbing mechanism is the same as that under the free space condition. Such a demonstration method is superior to the conventional free space measurement method due to the small-scale test samples required, the simple measure device, and the low cost. Most importantly, the proposed method opens a way to make the MMAs used in microwave applications such as the matched terminations.

关键词: metamaterial, absorber, electric resonator, rectangular waveguide

Abstract: In this paper, we demonstrate six types of metamaterial absorbers (MMAs) by measuring their absorptivities in an X-band (8-12 GHz) rectangular waveguide. Some of the MMAs have been demonstrated previously by using the free space measurement method, and the others are proposed firstly in this paper. The measured results show that all of the six MMAs exhibit high absorptivities above 98%, which have the similar absorbing characteristics comparing to those measured in the free space. The numerically obtained surface current densities for each MMA show that the absorbing mechanism is the same as that under the free space condition. Such a demonstration method is superior to the conventional free space measurement method due to the small-scale test samples required, the simple measure device, and the low cost. Most importantly, the proposed method opens a way to make the MMAs used in microwave applications such as the matched terminations.

Key words: metamaterial, absorber, electric resonator, rectangular waveguide

中图分类号:  (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))

  • 78.20.Ci
41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 42.25.Bs (Wave propagation, transmission and absorption)