Journal
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
Volume 11, Issue 8, Pages 797-805Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1759078719000370
Keywords
Octagonal interconnected loops; ultrathin FSS; five bands; unit cell miniaturization
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This Paper reveals a novel single layer five band frequency selective surface (FSS). Novelties of the proposed FSS lie in its five closely spaced stop bands at 2.4, 3.38, 4.82, 6.32, and 7.75 GHz as well as the reduced single layer structural thickness (0.0016 lambda(0)) and the miniaturized unit cell size (0.0656 lambda(0)) at lower resonant frequency as compared to the existing multiband FSS. The unit cell structure consists of six octagonal concentric interconnected loops. Adjacent loop interconnection technique reduces the cell size by more than 44%. Furthermore, arrow-shaped rings are also introduced on each corner of the outermost octagonal loop, and using this technique approximate 23% cell miniaturization can be achieved. In addition, the proposed FSS exhibits excellent angular stability.
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