Metamaterial Based Circular Disc Patch Antenna Miniaturization

Main Article Content

V. Kumar
Y. Wu

Abstract

A novel metamaterial structure has been proposed for its operation at 2.4 GHz. A circular disc patch antenna resonating at dual band frequency with 2.4 GHz and 3.36 GHz has been designed using full field solver CST MWS tool and the loading effect of the metamaterial has been shown. The loading of metamaterial shows a radial size reduction of 56.71% in the circular disc patch (dimensional space reduction by 81.26%) while the effect of loading the metamaterial array and loading the metamaterial with defected ground plane show that without reducing the disc patch radius, the patch antenna can resonate at 1.00 and 1.942 GHz respectively, these yield a lower frequency shift of 58.33% and 19.79%. The designed metamaterial consists of two copper conductive concentric circular rings over a polyimide substrate. Various antenna parameters such as S11, VSWR, Bandwidth, Gain, Directivity and Radiation efficiency have been obtained for the circular disc patch antenna, circular disc patch antenna loaded with the metamaterial, circular disc patch antenna loaded with an array of metamaterial and are compared. A spice circuit has been derived for the reflection coefficient of the circular disc patch without loading the metamaterial, circular disc patch loaded with metamaterial using Keysight based ADS tool for its inclusion in a traditional electrical circuit solver tool.

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How to Cite
Kumar, V., & Wu, Y. (2018). Metamaterial Based Circular Disc Patch Antenna Miniaturization. Advanced Electromagnetics, 7(5), 137-144. https://doi.org/10.7716/aem.v7i5.841
Section
Research Articles
Author Biographies

V. Kumar, University of Cambridge

Varindra KUMAR has obtained his Bachelor of Engineering in Electronics Engineering from National Institute of Technology (Formerly REC) Rourkela and Master of Technology in Electronics and Communication Engineering from Indian Institute of Technology, Varanasi (Formerly IT BHU). Subsequently after working across various electronics design companies, he joined for PhD at the University of Nottingham in EMC Macromodeling. After finishing his PhD in the year 2014 he is working as Postdoc Research Associate at the department of Engineering, University of Cambridge. His research interest lies in electronics design, microprocessor architecture, sensor design, wearable electronics, electromagnetic and antenna design etc.

Y. Wu, Cambridge University

Yutian WU was born in 1991. He received his BA and MSci degree from University of Cambridge in 2016. His research interests include computational and experimental work for fabricating wearable devices. Presently he is working towards his PhD at University of Cambridge.

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