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Bandwidth enhancement of a planar monopole microstrip patch antenna

Published online by Cambridge University Press:  10 November 2014

Sudeep Baudha  and
Dinesh Kumar Vishwakarma
Sudeep Baudha*
Affiliation:
Department of Electronics and Communication Engineering, Indian Institute of Information Technology Design and Manufacturing, Jabalpur, India. Phone: +918871774356
Dinesh Kumar Vishwakarma
Affiliation:
Department of Electronics and Communication Engineering, Indian Institute of Information Technology Design and Manufacturing, Jabalpur, India. Phone: +918871774356
*
Corresponding author:S. Baudha, Email: sudeep.baudha@iiitdmj.ac.in
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Abstract

This paper presents a simple broadband planar monopole microstrip patch antenna with curved slot and partial ground plane. The proposed antenna is designed and fabricated on commercially available FR4 material with εr = 4.3 and 0.025 loss tangent. Bandwidth enhancement has been achieved by introducing a curved slot in the patch and optimizing the gap between the patch and the partial ground plane and the gap between the curved slot and the edge of the patch. Simulated peak gain of the proposed antenna is 4.8 dB. The impedance bandwidth (defined by 10 dB return loss) of the proposed antenna is 109% (2–6.8 GHz), which shows bandwidth enhancement of 26% as compared with simple monopole antenna. The antenna is useful for 2.4/5.2/5.8-GHz WLAN bands, 2.5/3.5/5.5-GHz WiMAX bands, and other wireless communication services. Measured results show good agreement with the simulated results. The proposed antenna details are described and measured/simulated results are elaborated.

Keywords

Antennas and propagation for wireless systemsAntenna designModeling and measurements
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 2 , March 2016 , pp. 237 - 242
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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