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International Journal of Antennas and Propagation
Volume 2013 (2013), Article ID 169893, 7 pages
http://dx.doi.org/10.1155/2013/169893
Research Article

Analysis of High Superconducting Rectangular Microstrip Patches over Ground Planes with Rectangular Apertures in Substrates Containing Anisotropic Materials

1Electronics Department, University of Constantine, 25000 Constantine, Algeria
2Electronics Department, University of Batna, 05000 Batna, Algeria

Received 30 March 2013; Accepted 22 June 2013

Academic Editor: Haiwen Liu

Copyright © 2013 Abderraouf Messai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A rigorous full-wave analysis of high superconducting rectangular microstrip patch over ground plane with rectangular aperture in the case where the patch is printed on a uniaxially anisotropic substrate material is presented. The dyadic Green’s functions of the considered structure are efficiently determined in the vector Fourier transform domain. The effect of the superconductivity of the patch is taken into account using the concept of the complex resistive boundary condition. The accuracy of the analysis is tested by comparing the computed results with measurements and previously published data for several anisotropic substrate materials. Numerical results showing variation of the resonant frequency and the quality factor of the superconducting antenna with regard to operating temperature are given. Finally, the effects of uniaxial anisotropy in the substrate on the resonant frequencies of different TM modes of the superconducting microstrip antenna with rectangular aperture in the ground plane are presented.