Design of Frequency Selective Structures for Radio Wave Propagation

	International Journal of P2P Network Trends and Technology (IJPTT)
	© 2014 by IJPTT Journal
	Volume - 4 Issue - 2
	Year of Publication : 2014
	Authors : S.Lalitha Nachal , B.Monica , M.Ramani

Citation

S.Lalitha Nachal , B.Monica , M.Ramani."Design of Frequency Selective Structures for Radio Wave Propagation". International Journal of P2P Network Trends and Technology (IJPTT), V4(2):47-52 Mar - Apr 2014, ISSN:2249-2615, www.ijpttjournal.org. Published by Seventh Sense Research Group.

Abstract

Frequency Selective Surfaces (FSS) are periodic structures with either patch or slot elements placed in a periodic substrate that have frequency filtering properties which is implemented in single or multiple frequency band-pass or band-stop filtering, dichroic plates in reflector systems, circuit analog absorbers, etc. The specification of FSS is to pass, or reflect, electromagnetic (EM) waves at a particular frequency by influencing the insertion and return loss characteristics. The proposed system investigates the application of FSS in WLAN. The design and simulation was performed in Computer Simulation Technology (CST) Microwave Studio. The proposed hybrid model blocks the specified WLAN frequencies and also controls the radio wave propagation. The predominant merit of this structure is that there will be no interference from the WLAN frequency signals and this can be applied in antenna measurement chambers like anechoic chamber. The proposed system is an ongoing research work in which the designed FSS has been fabricated and the results are to be verified practically in EMC lab.

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Keywords

Band stop filters, Frequency Selective Surfaces, WLAN, anechoic chambers.