Frequency selective surface with better polarization-independency for arbitrary incident angle |
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Authors: | Jia Hong-Yan Gao Jin-Song and Feng Xiao-Guo |
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Institution: | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract: | This paper investigates the frequency-selective property of a planar
layer consisting of period arrays both theoretically and
experimentally for different polarizations at arbitrary incident
angle. The novel element is designed by loading the rectangular
microstrip element with L-shaped conducting patch at its two ends.
Based on the spectral-domain method, the frequency response
including angle effect and polarization effect of the frequency
selective surface (FSS) structure are analysed and the plots of the
frequency versus transmission coefficient are obtained. As a result
of the numerical analysis, it is shown that if the source
polarization is changed, polarization-independence of previous FSS
design can be achieved only for normal incidence, which limits most
FSS applications. But in our proposed structure, the better
polarization-independency for arbitrary incident angle can be
achieved. It is observed that the simulated result comes very close
to the experimental result. |
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Keywords: | frequency selective surface
(FSS) arbitrary incident angle polarization independency |
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