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Miniaturized bent slotted patch antenna over a reactive impedance surface substrate

Published online by Cambridge University Press:  12 February 2015

Saurabh Kumar*
Affiliation:
Discipline of Electronics and Communication Engineering, PDPM Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India. Phone: +91 9407286763
Dinesh Kumar Vishwakarma
Affiliation:
Discipline of Electronics and Communication Engineering, PDPM Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India. Phone: +91 9407286763
*
Corresponding author:S. Kumar Email: saurabh_verma393@yahoomail.com

Abstract

A reactive impedance surface (RIS) based miniaturized bent slotted patch antenna is proposed and investigated for S-band applications around 2.39 GHz. Bent slots in the patch reduce the patch antenna size by increasing current path on the patch. Further a RIS substrate with cross-shaped patch elements printed over a grounded dielectric is optimized and investigated for antenna miniaturization. The proposed bent slotted patch antenna over RIS substrate is 38.75% miniaturized with respect to traditional patch antenna at a fixed operating frequency. The proposed antenna reveals an overall volume of 0.280λ0 × 0.280λ0 × 0.036λ0 on a low-cost FR4 substrate at 2.39 GHz for S-band applications. The proposed antenna is fabricated and measured for its return loss. The measured results are in good agreement with simulated one.

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

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