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Perturbation theory-based field analysis of arbitrary-shaped microstrip patch antenna

Published online by Cambridge University Press:  19 April 2017

Karishma Sharma ,
Dharmendra K. Upadhyay  and
Harish Parthasarathy
Karishma Sharma*
Affiliation:
Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Delhi University, Delhi, India. Phone: +91 9818 021 456
Dharmendra K. Upadhyay
Affiliation:
Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Delhi University, Delhi, India. Phone: +91 9818 021 456
Harish Parthasarathy
Affiliation:
Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Delhi University, Delhi, India. Phone: +91 9818 021 456
*
Corresponding author: K. Sharma Email: krrissh_16@yahoo.co.in
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Abstract

In this paper, the concept of perturbation theory is applied to derive a general electric field (E-field) expression for any arbitrary-shaped microstrip patch antenna. The arbitrary shape is created by adding small perturbation in a regular patch shape, which is used to find perturbed and unperturbed electromagnetic wave solutions for resultant E-field of patch antenna. Ansoft HFSS simulator is used to validate the derived field expression in curvilinear coordinates for a regular circular-shaped patch. Then the proposed field analysis is applied to develop two new arbitrary-shaped patches in C-band for desired E-field patterns.

Keywords

EM field theoryAntenna designModeling and measurementsPerturbation theory
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Special Issue 8: Biomedical Applications of RF/Microwave and Optics Technologies , October 2017 , pp. 1713 - 1723
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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