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Tunable split ring resonators in terahertz band

Dai Yu-Han Chen Xiao-Lang Zhao Qiang Zhang Ji-Hua Chen Hong-Wei Yang Chuan-Ren

Tunable split ring resonators in terahertz band

Dai Yu-Han, Chen Xiao-Lang, Zhao Qiang, Zhang Ji-Hua, Chen Hong-Wei, Yang Chuan-Ren
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  • Abstract views:  1444
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  • Cited By: 0
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  • Received Date:  06 August 2012
  • Accepted Date:  21 September 2012
  • Published Online:  20 March 2013

Tunable split ring resonators in terahertz band

  • 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant No. 61201007) and the Fundamental Research Funds for the Central Universities of China (Grant No. ZYGX2011J022).

Abstract: Split ring resonators (SRRs) can be used as a negative permeability medium near its magnetic resonance frequency. In this paper, a new type of THz-band magnetic resonance structure is proposed by introducing metal wires into traditional SRRs, and the effect of metal wires on the transmission characteristics of SRRs is numerically investigated. The results show that the resonant frequency of SRRs significantly decreases with the number of metal wires increasing. The parameters of metal wires, such as length Lx, width Wx and distance Gx also have influence on the resonant frequency of SRRs. Meanwhile, the results verify that the introduction of metal wires play an important role in reducing the size of the device, and cannot be affected by the presence of dielectric substrate. The new magnetic resonance structure proposed in this paper provides a reference for the design and practical applications of metamaterials in the future.

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