Circular Polarized Planar Antenna for WIMAX and WLAN Applications
Krishna Chennakesava Rao M1, Mohammad Imroz Khan2, Pachiyaannan.M3

1Krishna Chennakesava Rao M, Department of Electronics and Communication Engineering, Vignan’s Foundation for Science, Technology and Research, Guntur (A.P), India.
2Mohammad Imroz Khan, Department of Electronics and Communication Engineering, Vignan’s Foundation for Science, Technology and Research, Guntur (A.P), India.
3Pachiyaannan.M, Department of Electronics and Communication Engineering, Vignan’s Foundation for Science, Technology and Research, Guntur (A.P), India.
Manuscript received on 13 February 2019 | Revised Manuscript received on 04 March 2019 | Manuscript Published on 08 June 2019 | PP: 292-294 | Volume-7 Issue-5S4, February 2019 | Retrieval Number: E10600275S419/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This document presents a circular polarized planar antenna with pentagonal shaped ground slot. Wideband impedance bandwidth is achieved by etching a pentagonal shaped ground slot and inserting a 50Ω feed line into it. Two orthogonal modes of same amplitude in phase quadrature are generated by terminating the feed line by an asymmetric patch. Proposed antenna shows right handed circular polarized (RHCP) characteristics with an interference cancellation of greater than 20dB. The proposed antenna has a compact 40mm × 40mm × 1.6mm geometry with single conducting layer. Impedance bandwidth of antenna extends from 2.21 GHz – 6.42 GHz, while circular polarization bandwidth extends from 2.65 GHz – 3.18 GHz and 5.74 GHz – 6.0 GHz, thereby covering WiMAX and WLAN application bands.
Keywords: Asymmetric, Circular Polarized, Cpw.
Scope of the Article: MIMO Antenna