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Miniaturized curved slotted patch antenna over a fractalized EBG ground plane

Published online by Cambridge University Press:  10 February 2016

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

In this paper, a miniaturized coaxial feed curved-slotted microstrip patch antenna over a fractalized uniplanar compact electromagnetic bandgap (F-UC-EBG) ground plane is proposed and investigated. Compact size is achieved by cutting the curved slots along the orthogonal directions of the patch radiator. The curved-slotted microstrip patch antenna is 38.30% miniaturized as compared with the conventional microstrip patch antenna resonating at 2.38 GHz. Furthermore, the ordinary ground plane of the curved slotted patch antenna is replaced by the F-UC-EBG ground plane. Due to the slow wave phenomenon created in the F-UC-EBG structure and the better impedance matching at the lower frequency further miniaturization and improved performance are obtained. The proposed antenna shows 74.76% miniaturization as compared with the conventional microstrip patch antenna resonating at 1.57 GHz and has 2.61% 10-dB fractional bandwidth, 1.49 dB gain, and 81.59% radiation efficiency. The proposed antenna is fabricated on a low-cost FR4 substrate having an overall volume of 0.184λ0 × 0.184λ0 × 0.0236λ0 at 1.57 GHz GPS band. The measured and simulated results are in good agreement and predicting appropriateness of the antenna in portable and handheld communication systems for GPS applications.

Keywords

Antenna designModeling and measurementsAntennas and propagation for wireless systemsMicrostrip antennaMiniaturizationElectromagnetic bandgap (EBG) structures
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 3 , April 2017 , pp. 599 - 605
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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