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Analysis of elliptical-disk microstrip patch printed on isotropic or anisotropic substrate materials

Published online by Cambridge University Press:  13 November 2014

Randa Bedra Open the ORCID record for Randa Bedra [Opens in a new window] ,
Sami Bedra  and
Tarek Fortaki
Randa Bedra*
Affiliation:
Electronics Department, University of Batna, 05000 Batna, Algeria. Phone: +21333857526
Sami Bedra
Affiliation:
Electronics Department, University of Batna, 05000 Batna, Algeria. Phone: +21333857526 Department of Industrial Engineering, University of Khenchela, 40004 Khenchela, Algeria
Tarek Fortaki
Affiliation:
Electronics Department, University of Batna, 05000 Batna, Algeria. Phone: +21333857526
*
Corresponding author: R. Bedra Email: [email protected]
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Abstract

This paper presents a simple approach for accurate determination of the resonant frequency of an elliptical microstrip patch printed on isotropic or anisotropic substrate materials. In this approach, some modifications are made to account for fringe fields, dispersion effects, and losses by calculating effective dimensions, effective permittivity of anisotropy in the layer, and effective loss tangent, respectively. The theoretical resonant frequency results are in very good agreement with the experimental results reported elsewhere. Numerical results show that the change in the resonant frequency of the antenna is due primarily to a small disturbance of the substrate's nature. Then the effect of the uniaxial anisotropic materials is a significant parameter and most essential on the microstrip antenna characterization.

Keywords

Elliptical-disk antennaAnisotropic substrateCavity methodFringe fieldsCircular polarizations
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 2 , March 2016 , pp. 251 - 255
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

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