中国物理B ›› 2011, Vol. 20 ›› Issue (6): 67805-067805.doi: 10.1088/1674-1056/20/6/067805

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

Expanding the bandwidth of planar MNG materials with co-directional split-ring resonators

唐明春, 肖绍球, 王多, 葛广顶, 柏艳英, 张俊睿, 王秉中   

  1. Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2010-11-29 修回日期:2010-12-28 出版日期:2011-06-15 发布日期:2011-06-15
  • 基金资助:
    Project supported partially by the National Natural Science Foundation of China (Grant Nos. 60872034 and 60971029), the New-Century Talent Program of the Education Department of China (Grant No. NCET070154), the National Defense Research Funding (Grant No. ZJ10DZ02111), and the Hi-Tech Research and Development Program of China (Grant No. 2009AA01Z231).

Expanding the bandwidth of planar MNG materials with co-directional split-ring resonators

Tang Ming-Chun(唐明春), Xiao Shao-Qiu(肖绍球)†, Wang Duo(王多), Ge Guang-Ding(葛广顶), Bai Yan-Ying(柏艳英), Zhang Jun-Rui(张俊睿), and Wang Bing-Zhong (王秉中)   

  1. Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2010-11-29 Revised:2010-12-28 Online:2011-06-15 Published:2011-06-15
  • Supported by:
    Project supported partially by the National Natural Science Foundation of China (Grant Nos. 60872034 and 60971029), the New-Century Talent Program of the Education Department of China (Grant No. NCET070154), the National Defense Research Funding (Grant No. ZJ10DZ02111), and the Hi-Tech Research and Development Program of China (Grant No. 2009AA01Z231).

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摘要： An effective approach to expand the bandwidth of negative permeability of small-sized planar materials is proposed. Based on qualitative analysis of equivalent circuit models, the fractional bandwidth of an μ-negative (MNG) material is expanded from 3.53% up to 12.87% by adding split-ring resonators (SRRs) and arranging them by proposed steps. Moreover, the experimental results validate the effectiveness of bandwidth-expanding methods, which is promising for the extensive application of metamaterials in the microwave field.

Abstract: An effective approach to expand the bandwidth of negative permeability of small-sized planar materials is proposed. Based on qualitative analysis of equivalent circuit models, the fractional bandwidth of an μ-negative (MNG) material is expanded from 3.53% up to 12.87% by adding split-ring resonators (SRRs) and arranging them by proposed steps. Moreover, the experimental results validate the effectiveness of bandwidth-expanding methods, which is promising for the extensive application of metamaterials in the microwave field.

Key words: planar μ-negative materials, bandwidth expanding, co-directional split-ring resonators

中图分类号:  (Multilayers; superlattices; photonic structures; metamaterials)

  • 78.67.Pt
73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))