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2023-03-22
A Miniaturized Band-Stop FSS Based on Pixelated Unitcell
By
Progress In Electromagnetics Research Letters, Vol. 109, 111-117, 2023
Abstract
As wireless devices become increasingly compact, portable, and accessible anywhere, there is a need to increase isolation between them and reduce frequency interference. The purpose of this paper is to suppress interference by using pixelated patterns on a single layer in a miniaturized unit cell. To miniaturize of unitcell, the surface was pixelated into 50 × 50 pixels with a resolution of 0.2 mm × 0.2 mm. The proposed unitcell occupies a small area of 0.06λ0 × 0.06λ0 at GSM frequency (f = 1.8 GHz). The pixelation of the surface allows the surface current to follow a long path. Therefore, unlike the previous works, the miniaturized structure is obtained using a 1D layer without any vias and lumped elements. A signi ficant advantage of this structure is that it is signi ficantly more miniaturized than the current state-of-the-art unitcells and allows for a wider range of applications. Full-wave simulation and measurement results are in good agreement with each other and show stopband at operation frequency. As a result, both simulation and measurement results show that the proposed structure has a dual-polarized characteristic with good angular stability under a variety of incidence angles.
Citation
Abedin Karimi Morteza Nadi , "A Miniaturized Band-Stop FSS Based on Pixelated Unitcell," Progress In Electromagnetics Research Letters, Vol. 109, 111-117, 2023.
doi:10.2528/PIERL22122403
http://www.jpier.org/PIERL/pier.php?paper=22122403
References