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Gain enhancement of microstrip patch antenna using Sierpinski fractal-shaped EBG

Published online by Cambridge University Press:  25 March 2015

Neeraj Rao*
Indian Institute of Information Technology Design and Manufacturing Jabalpur, Dumna, Air Port Road 482005, India. Phone: +91 9407852319
Dinesh Kumar Vishwakarma
Indian Institute of Information Technology Design and Manufacturing Jabalpur, Dumna, Air Port Road 482005, India. Phone: +91 9407852319
Corresponding author: N. Rao, Email:


This is the first report on novel mushroom-type electromagnetic band gap (EBG) structures, consisting of fractal periodic elements, used for enhancing the gain of microstrip patch antennas. Using CST Microwave studio the performance of rectangular patch antenna has been examined on proposed fractal EBG substrates. It is found that fractal EBGs are more effective in suppressing surface wave thus resulting in higher gain. The gain of rectangular patch has been improved from 6.88 to 10.67 dBi. The proposed fractal EBG will open new avenues for the design and development of variety of high-frequency components and devices with enhanced performance.

Research Papers
Copyright © Cambridge University Press and the European Microwave Association 2015 

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