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PhotonIcs and Electromagnetics Research Symposium,
also known as Progress In Electromagnetics Research Symposium

PIERS Proceedings

Published by The Electromagnetics Academy

Published: 2015-08-28

A Novel Tunable Dual-band Microwave Metamaterial Absorber Based on Split Ring Resonant

By

Bo-Rui Bian,

Bo-Rui Bian

Nanjing University of Aeronautics and Astronautics, China

Xiang-Kun Kong,

Xiang-Kun Kong

Nanjing University of Aeronautics and Astronautics, China

Shaobin Liu,

Shaobin Liu

Nanjing University of Aeronautics and Astronautics, China

Ben Ma,

Ben Ma

Nanjing University of Aeronautics and Astronautics, China

Zhiwen Mao,

Zhiwen Mao

Nanjing University of Aeronautics and Astronautics, China

Beiyin Wang,

Beiyin Wang

Nanjing University of Aeronautics and Astronautics, China

Jia-Lin Yuan,

Jia-Lin Yuan

Nanjing University of Aeronautics and Astronautics, China

Hai Feng Zhang

Hai Feng Zhang

Nanjing University of Posts and Telecommunications, China

Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)296-299

Abstract

We present the design, simulation, fabrication, and measurement of a tunable metamaterial at microwave frequencies by embedding varactor diodes as an active elements inside metamaterial units. A pair of feed lines are used to control the reverse bias voltage on the diode. The proposed absorber can perform absorption peaks at two resonant frequencies. The lower resonant frequency can be tuned in a wide range by tuning the values of the diodes while the higher resonant frequency keeps unchangeable. In addition, the absorber with the thickness of λ/74 at the lowest fundamental resonant frequency is ultra-thin. We also find that the absorber is insensitive to the polarization of incident waves for a wide range of incidence angles for both TE and TM polarizations. The experimental results show excellent absorption rates under different bias voltage on the diode, which are in good accordance to the simulated results.

Citation

Bo-Rui Bian, Xiang-Kun Kong, Shaobin Liu, Ben Ma, Zhiwen Mao, Beiyin Wang, Jia-Lin Yuan, and Hai Feng Zhang, "A Novel Tunable Dual-band Microwave Metamaterial Absorber Based on Split Ring Resonant," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)296-299

References

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