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Design and optimization of left-handed materials with specific frequency bands

Gao Ren-Jing Wang Guo-Ming Liu Shu-Tian Tang Zhen-An

Design and optimization of left-handed materials with specific frequency bands

Gao Ren-Jing, Wang Guo-Ming, Liu Shu-Tian, Tang Zhen-An
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  • Received Date:  04 March 2011
  • Accepted Date:  30 May 2011
  • Published Online:  05 March 2012

Design and optimization of left-handed materials with specific frequency bands

  • 1. Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;
  • 2. Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Fund Project:  Project supported by the National Basic Research Program of China (Grant No. 2011CB610304) and the Research Fund for the Doctoral Program of Higher Education of China (Grant No.20090041110023).

Abstract: In this paper, a design optimization method for left-handed materials with specific frequency bands is proposed. A microstructure of the left-handed material is constructed based on the transmission line theory, and the properties of this material are simulated numerically with the S-parameter retrieval method and analyzed with equivalent transmission line model. The effects of the size parameters of the microstructure on the left-handed characters are analyzed. The analysis results verify that this structure does exhibit left-handed characteristics with appropriately sized microstructure. Then the mathematical model of the microstructure with maximized frequency band-width and lower loss at given frequencies is proposed, and examples are given. The design result confirms that the optimized model is applicable and accurate.

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