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Dual stopband frequency selective surface by using half rings and slots
Author(s) -
Hussein M.,
Zhou J.,
Huang Y.,
Kod M.,
Sohrab A. P.
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29740
Subject(s) - stopband , tunable metamaterials , microwave , equivalent circuit , filter (signal processing) , band pass filter , electronic engineering , elliptic filter , materials science , flexibility (engineering) , dielectric , low pass filter , topology (electrical circuits) , band stop filter , acoustics , engineering , optoelectronics , physics , electrical engineering , metamaterial , mathematics , telecommunications , voltage , statistics
ABSTRACT In this letter, a novel technique is proposed to design a dual stopband frequency selective surface (FSS) by combining a bandpass filter with its complementary structure in series. It displays flexibility to control the stopband frequencies which is the most attractive feature of this design. The proposed FSS filter is also very easy to fabricate, consisting of a single metal layer on a dielectric layer. A theoretical equivalent circuit model is proposed to characterize the structure. Explanation of the proposed filter response based on analysis of the equivalent circuit is discussed in detail. It is shown that the frequency response of the proposed FSS is almost the same for different incident angles. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1136–1139, 2016