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IJEETC 2023 Vol.12(3): 171-176
doi: 10.18178/ijeetc.12.3.171-176

A 200 MHz to 850 MHz VHF/UHF Antenna for Local Area Cognitive Radio Networks Applications

Imran Javeed Settu* and Aloy Anuja Mary Gnanaraj
Department of Electronics and Communication Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Tamil Nadu, India

Manuscript received January 15, 2023; revised March 3, 2023; accepted March 22, 2023.

Abstract—Cognitive Radio Networks (CRN) support the optimal usage of licensed vacant spectrum using interviewing and underlay techniques. The aim of this work is to design a Very High Frequency (VHF) and Ultra High Frequency (UHF) range wideband antenna between 200 MHz and 850 MHz for CRN application. Antenna fabrication was done using FR4 substrate which measures a dimension of 108 mm x 108 mm. The underutilized spectrum in the range is effectively utilized by the cognitive user in the absence of a licensed primary user. This is achieved by the spectrum sensing technique by sensing the user environment. Therefore the necessity of spectrum sensing antenna is determined by this work and the same is achieved through meticulous design and extensive testing. The simulated and measured results are well in agreement and achieve wide bandwidth of 650MHz with a peak radiation efficiency of 96%.
Index Terms—Cognitive radio antenna, CPW-feed, UHF antenna, VHF antenna, wideband antenna

Cite:Imran Javeed Settu and Aloy Anuja Mary Gnanaraj, "A 200 MHz to 850 MHz VHF/UHF Antenna for Local Area Cognitive Radio Networks Applications," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 12, No. 3, pp. 171-176, May 2023. Doi: 10.18178/ijeetc.12.3.171-176

Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.