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Electromagnetic band gaps from H-shaped fractals

Published online by Cambridge University Press:  11 October 2006

Lin Li ,
Dong Cheng ,
Sheng Wang ,
Zhangyou Chen ,
Zhengyou Liu  and
Xing-Zhong Zhao
Lin Li
Affiliation:
Department of Physics Science and Technology, Wuhan University, 430072 Wuhan, P.R. China
Dong Cheng
Affiliation:
Department of Physics Science and Technology, Wuhan University, 430072 Wuhan, P.R. China
Sheng Wang
Affiliation:
Department of Physics Science and Technology, Wuhan University, 430072 Wuhan, P.R. China
Zhangyou Chen
Affiliation:
Department of Physics Science and Technology, Wuhan University, 430072 Wuhan, P.R. China
Zhengyou Liu
Affiliation:
Department of Physics Science and Technology, Wuhan University, 430072 Wuhan, P.R. China
Xing-Zhong Zhao*
Affiliation:
Department of Physics Science and Technology, Wuhan University, 430072 Wuhan, P.R. China
*
xzzhao@whu.edu.cn
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Abstract

This paper presents a new method to simulate the properties of Frequency Selective Surface (FSS) composed of planar H-shaped fractals structure exhibiting multiple band gaps of electromagnetic waves. The FSS sample can be easily fabricated as that of the Printed Circuit Board (PCB). The electromagnetic characteristics of this H-shaped fractal structure were studied mainly by numerical simulation based on Finite Integration Technique (FIT). The simulation results present a direct image of surface currents when certain frequency electromagnetic waves incident on the surface of the sample, which is in a considerably good agreement with the experimental results. Based on the comparison of simulated and experimental result it is suggested that the planar H-shaped fractals structure has quasi-periodic multiple band gaps and the size can be significantly smaller than the relevant electromagnetic band gap wavelength.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 36 , Issue 2 , November 2006 , pp. 131 - 134
Copyright
© EDP Sciences, 2006

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