Abderraouf Messai

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Working near to the high temperature of transition of a superconducting thin film material leads to important reductions in the size of a microstrip patch antenna. A superconducting film over an isotropic substrate is taken and different values of resonant frequencies for different patch thicknesses are calculated and compared with the resonant frequency of(More)
In this paper, radiation characteristics of the perfectly superconducting, or an imperfectly conducting rectangular microstrip, which is printed on isotropic or uniaxial anisotropic substrate are investigated using a Fourier transforms domain in conjunction with the stationary phase method. The effects of uniaxial anisotropy on the resonant frequency,(More)
A superconducting material of the YBCO family is considered. It is printed over a uniaxial anisotropic substrate: the Saphire material. The resonant frequency and the bandwidth are calculated using different patch thicknesses at temperatures very close to the high temperature of transition. The numerical results are compared with those of a conductor patch(More)
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