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Design of dodecagon unit cell shape based three layered frequency selective surfaces for X band reflection
V. Shaik,
Published in Electromagnetics Academy
Volume: 75
Pages: 103 - 111
A three layered low profile dodecagon shaped band stop frequency selective surface (FSS) is presented in this paper for X band rejection applications. The three layers are placed in a manner which is complement to each other. The low profile three layered FSS with unit cell dimensions on the order of 0.2λ0 × 0.2λ0 (at lower center frequency of 8.2 GHz) with overall thickness of three layers including air gap of 5.2 mm is presented. For experimental verification, a three layered FSS has been fabricated and measured. Simulation results show that the designed three layered FSS can provide a stopband from 8 GHz to 12.5 GHz with two transmission zeros of 8.2 GHz and 10.5 GHz with a fractional bandwidth of 45%. The complete design and equivalent circuit model (ECM) of the three layered FSS are presented in this paper. © 2018, Electromagnetics Academy. All rights reserved.
About the journal
JournalProgress In Electromagnetics Research M
PublisherElectromagnetics Academy