中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107301-107301.doi: 10.1088/1674-1056/25/10/107301

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

Design and experimental verification of a dual-band metamaterial filter

Hong-Yang Zhu(朱洪杨), Ai-Qin Yao(姚爱琴), Min Zhong(钟敏)   

  1. 1 North University of China, Taiyuan 030051, China;
    2 Hezhou University, Hezhou 542899, China
  • 收稿日期:2016-03-11 修回日期:2016-06-16 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Min Zhong E-mail:zhongmin2012hy@163.com
  • 基金资助:
    Project supported by the Doctorate Scientific Research Foundation of Hezhou University, China (Grant No. HZUBS201503), the Promotion of the Basic Ability of Young and Middle-aged Teachers in Universities Project of Guangxi Zhuang Autonomous Region, China (Grant No. KY2016YB453), the Guangxi Colleges and Universities Key Laboratory Symbolic Computation, China, Engineering Data Processing and Mathematical Support Autonomous Discipline Project of Hezhou University, China (Grant No. 2016HZXYSX01).

Design and experimental verification of a dual-band metamaterial filter

Hong-Yang Zhu(朱洪杨)1, Ai-Qin Yao(姚爱琴)1, Min Zhong(钟敏)2   

  1. 1 North University of China, Taiyuan 030051, China;
    2 Hezhou University, Hezhou 542899, China
  • Received:2016-03-11 Revised:2016-06-16 Online:2016-10-05 Published:2016-10-05
  • Contact: Min Zhong E-mail:zhongmin2012hy@163.com
  • Supported by:
    Project supported by the Doctorate Scientific Research Foundation of Hezhou University, China (Grant No. HZUBS201503), the Promotion of the Basic Ability of Young and Middle-aged Teachers in Universities Project of Guangxi Zhuang Autonomous Region, China (Grant No. KY2016YB453), the Guangxi Colleges and Universities Key Laboratory Symbolic Computation, China, Engineering Data Processing and Mathematical Support Autonomous Discipline Project of Hezhou University, China (Grant No. 2016HZXYSX01).

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摘要： In this paper, we present the design, simulation, and experimental verification of a dual-band free-standing metamaterial filter operating in a frequency range of 1 THz-30 THz. The proposed structure consists of periodically arranged composite air holes, and exhibits two broad and flat transmission bands. To clarify the effects of the structural parameters on both resonant transmission bands, three sets of experiments are performed. The first resonant transmission band shows a shift towards higher frequency when the side width w1 of the main air hole is increased. In contrast, the second resonant transmission band displays a shift towards lower frequency when the side width w2 of the sub-holes is increased, while the first resonant transmission band is unchanged. The measured results indicate that these resonant bands can be modulated individually by simply optimizing the relevant structural parameters (w1 or w2) for the required band. In addition, these resonant bands merge into a single resonant band with a bandwidth of 7.7 THz when w1 and w2 are optimized simultaneously. The structure proposed in this paper adopts different resonant mechanisms for transmission at different frequencies and thus offers a method to achieve a dual-band and low-loss filter.

关键词: photoelectric, metamaterial, filter

Abstract: In this paper, we present the design, simulation, and experimental verification of a dual-band free-standing metamaterial filter operating in a frequency range of 1 THz-30 THz. The proposed structure consists of periodically arranged composite air holes, and exhibits two broad and flat transmission bands. To clarify the effects of the structural parameters on both resonant transmission bands, three sets of experiments are performed. The first resonant transmission band shows a shift towards higher frequency when the side width w1 of the main air hole is increased. In contrast, the second resonant transmission band displays a shift towards lower frequency when the side width w2 of the sub-holes is increased, while the first resonant transmission band is unchanged. The measured results indicate that these resonant bands can be modulated individually by simply optimizing the relevant structural parameters (w1 or w2) for the required band. In addition, these resonant bands merge into a single resonant band with a bandwidth of 7.7 THz when w1 and w2 are optimized simultaneously. The structure proposed in this paper adopts different resonant mechanisms for transmission at different frequencies and thus offers a method to achieve a dual-band and low-loss filter.

Key words: photoelectric, metamaterial, filter

中图分类号:  (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

  • 73.20.Mf
41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 78.20.Mg (Photorefractive effects)