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Design and optimization of a microstrip patch antenna for increased bandwidth

Published online by Cambridge University Press:  05 March 2013

Archana Agrawal*
Department of Electronics and Communication, I.T.M., Bhilwara, India. Phone: +91 8058255034
Pramod Kumar Singhal
Department of Electronics and Communication, M.I.T.S., Gwalior, India
Ankit Jain
Department of Electronics and Communication, J.I.I.T, Noida, India
Corresponding author: Archana Agrawal Email:


With the ever-increasing need for wireless communication and the emergence of many systems, it is important to design broadband antennas to cover a wide frequency range. The aim of this paper is to design a broadband patch antenna, employing the three techniques of slotting, adding directly coupled parasitic elements and fractal electromagnetic band gap (EBG) structures.The bandwidth is improved from 9.3 to 23.7%. A wideband ranging from 4.15 to 5.27 GHz is obtained. Also, a comparative analysis of embedding EBG structures at different heights is also done. The composite effect of integrating these techniques in the design provides a simple and efficient method for obtaining low-profile, broadband, and high-gain antenna. By the addition of parasitic elements the bandwidth was increased to 18%. Later on by embedding EBG structures the bandwidth was increased up to 23.7%. The design is suitable for a variety of wireless applications like WLAN and radar applications.

Research Papers
Copyright © Cambridge University Press and the European Microwave Association 2013 

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