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This paper presents a compact frequency selective surface (FSS) based band-stop spatial filter for WLAN application which can be useful for modern communication system. The proposed structure is designed on PTFE substrate which have exceptional weather and heat resistance with excellent insulator characteristics. It is a single sided metallic square patch FSS which give 10-dB insertion loss bandwidth...
In this paper, a Band Pass frequency selective surface(FSS) superstrate was proposed for the WLAN applications. Proposed FSS structure is made up of ring slot and a Jerusalem cross, which are etched on two opposite sides of the dielectric substrate. Structure is designed on the FR4 dielectric substrate with a relative permittivity of 4.4, loss tangent 0.025 and a thickness of 1.6 mm. The proposed...
Performance of UWB system may be degraded since the interference may be exist due to the presence of signals from other existing wireless communication systems. Currently, the major interference are in-band signal from 802.11a WLAN system which occupies the 5-6 GHz spectrum and signals from 802.11b/g WLAN system covering 2.4-2.48 frequency band. This paper presents the design of a modified L-shaped...
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