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Compact CPW-fed super wideband planar elliptical antenna

Published online by Cambridge University Press:  01 September 2020

Umair Rafique Open the ORCID record for Umair Rafique [Opens in a new window] ,
Sami ud Din  and
Hisham Khalil
Umair Rafique*
Affiliation:
Department of Electrical Engineering, Capital University of Science and Technology, Islamabad, Pakistan
Sami ud Din
Affiliation:
Department of Electrical Engineering, Namal Institute, Mianwali, Pakistan
Hisham Khalil
Affiliation:
Department of Technology, The University of Lahore, Lahore, Pakistan
*
Author for correspondence: Umair Rafique, E-mail: umair-rafique@hotmail.com
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Abstract

A compact co-planar waveguide (CPW) fed planar elliptical antenna has been designed and presented for super wideband (SWB) characteristics. The designed antenna has an overall size of 30 × 30 × 1.57 mm3, and it consists of an elliptical patch radiator fed using a modified 50 Ω CPW-fed tapered microstrip feed line. By using a semi-ring shaped structure with a tapered feed line, an impedance bandwidth of 180.66% has been observed from 1.27 to 25 GHz with a ratio bandwidth of 19.68:1. To validate simulation results, the designed antenna has been fabricated and measured, and a reasonable agreement has been observed between simulated and measured results. It has also been observed that the designed antenna offers good radiation properties over the entire operating bandwidth. The simulated average gain and radiation efficiency of the proposed SWB antenna is noted to be 4.3 dBi and 95.77%, respectively; while the measured average gain and radiation efficiency is 3.8 dBi and 94.69%, respectively.

Keywords

Co-planar waveguideelliptical patchplanar antennaratio bandwidthsemi-ring structuresuper widebandtapered feed line
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 4 , May 2021 , pp. 407 - 414
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association

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References

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