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Three Different Compact Elliptical Slot Ultra -Wide band Antennas for Wireless Communication Applications

K. S Chakradhar 1 and V. Malleswara Rao 2
1. Sree Vidyanikethan Engineering College (A), Tirupathi, India
2. GITAM Institute of Technology (deemed to be University), Vizag - 530045, India

Abstract—From this current paper, 3 separate elliptical slotted ultra- wide band (UWB) antennas are being proposed. These antennas have been designed with a standard PCB design process to be capable of integrating with radiofrequency or microwave circuitry. Two designs were presented in which the initial design comprised a half circular ring radiator and the remaining one considers a half elliptical ring radiator. The third design of the radiator is in the shape of a crescent. The impedance bandwidth of all these presented antenna designs varies from 2.5GHz and reaches to 14GHz with a S11 less than -10GHz. Here, every proposed antenna design also has a consistent radiation pattern across its frequency band of interest. The performance of the antenna is impressive for lower band frequency in UWB system, which differs in a range of 3.1GHz to 5.1GHz. Across the whole frequency band the antenna shows a 10db return loss bandwidth. The antenna is fabricated on RT-duroid substrate and fed with 50 Ω coupled tappered transmission line.
 
Index Terms—Printed Ckt. Board (PCB), crescent, elliptical, slot antenna, Ultra-wideband (UWB) Antenna, circular ring

Cite: K. S Chakradhar and V. Malleswara Rao, "Three Different Compact Elliptical Slot Ultra -Wide band Antennas for Wireless Communication Applications," Journal of Communications vol. 16, no. 2, pp. 52-59, February 2021. Doi: 10.12720/jcm.16.2.52-59

Copyright © 2021 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.

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