Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (4): 47802-047802.doi: 10.1088/1674-1056/22/4/047802

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

Analysis of frequency selective surface absorbers via a novel equivalent circuit method

刘立国, 吴微微, 莫锦军, 付云起, 袁乃昌   

  1. College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • 收稿日期:2012-10-07 修回日期:2012-12-02 出版日期:2013-03-01 发布日期:2013-03-01
  • 基金资助:
    Project supported by the Science Foundation for New Century Excellent Talents in University of China (Grant No. NCET-10-0894).

Analysis of frequency selective surface absorbers via a novel equivalent circuit method

Liu Li-Guo (刘立国), Wu Wei-Wei (吴微微), Mo Jin-Jun (莫锦军), Fu Yun-Qi (付云起), Yuan Nai-Chang (袁乃昌)   

  1. College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2012-10-07 Revised:2012-12-02 Online:2013-03-01 Published:2013-03-01
  • Contact: Liu Li-Guo E-mail:liguoliu99@gmail.com
  • Supported by:
    Project supported by the Science Foundation for New Century Excellent Talents in University of China (Grant No. NCET-10-0894).

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摘要： An equivalent circuit (EC) method for absorbers design is proposed in this paper. Without using full-wave analysis, the EC method can predict the performance of the absorbers. This method is employed to synthesize broadband absorbers by inserting the resistors respectively into the single- and double-square loops structures, then two different prototypes with broadband absorbing frequency bands are manufactured and measured. By comparisons with the results both by using the full-wave analysis and by the measurements, the correctness of the new EC method is verified. Some factors which affect the absorbing bandwidth are also investigated. Due to its fast and accurate characteristics, the EC method which can be theoretically applied to arbitrary FSS is a good candidate for broadband design of the absorbers.

关键词: frequency selective surfaces, equivalent circuit, absorber

Abstract: An equivalent circuit (EC) method for absorbers design is proposed in this paper. Without using full-wave analysis, the EC method can predict the performance of the absorbers. This method is employed to synthesize broadband absorbers by inserting the resistors respectively into the single- and double-square loops structures, then two different prototypes with broadband absorbing frequency bands are manufactured and measured. By comparisons with the results both by using the full-wave analysis and by the measurements, the correctness of the new EC method is verified. Some factors which affect the absorbing bandwidth are also investigated. Due to its fast and accurate characteristics, the EC method which can be theoretically applied to arbitrary FSS is a good candidate for broadband design of the absorbers.

Key words: frequency selective surfaces, equivalent circuit, absorber

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)