Characteristics of a high Tc superconducting rectangular microstrip patch on uniaxially anisotropic substrate

2014 ◽  
Vol 502 ◽  
pp. 70-75 ◽  
Author(s):  
Siham Benkouda ◽  
Abderraouf Messai ◽  
Mounir Amir ◽  
Sami Bedra ◽  
Tarek Fortaki
Keyword(s):  
High Tc ◽  
Microstrip Patch ◽  
Anisotropic Substrate

scholarly journals Resonance of High Tc Superconducting Microstrip Patch in a Substrate-Superstrate Configuration

2014 ◽  
Vol 2 (3) ◽  
pp. 19 ◽  
Author(s):  
S. Benkouda ◽  
T. Fortaki ◽  
M. Amir ◽  
A. Benghalia
Keyword(s):  
Method Of Moments ◽  
Fluid Model ◽  
Complex Surface ◽  
Superconducting Thin Film ◽  
High Permittivity ◽  
High Tc ◽  
Microstrip Patch ◽  
Rectangular Patch ◽  
Two Fluid Model ◽  
Two Fluid

The effect of a protecting dielectric superstrate on the resonance of a high Tc superconducting microstrip patch is investigated. The analysis approach is based on the spectral-domain method of moments in conjunction with the complex resistive boundary condition. The complex surface impedance of the superconducting thin film is determined using London’s equation and the two-fluid model of Gorter and Casimir. Numerical results show that the resonant frequency of the high Tc superconducting rectangular patch decreases monotonically with increasing superstrate thickness, the decrease being greater for high permittivity loading.

scholarly journals Efficient CAD Model to Analysis of High Tc Superconducting Circular Microstrip Antenna on Anisotropic Substrates

2017 ◽  
Vol 6 (2) ◽  
pp. 40 ◽  
Author(s):  
S. Bedra ◽  
R. Bedra ◽  
S. Benkouda ◽  
T. Fortaki
Keyword(s):  
Fluid Model ◽  
Computational Cost ◽  
Extended Model ◽  
Cavity Model ◽  
High Tc ◽  
Anisotropic Substrates ◽  
Anisotropic Substrate ◽  
Two Fluid Model ◽  
Circular Microstrip Antenna ◽  
Low Computational Cost

In this paper, an electromagnetic approach based on cavity model in conjunction with electromagnetic knowledge was developed. The cavity model combined with London’s equations and the Gorter-Casimir two-fluid model has been improved to investigate the resonant characteristics of high Tc superconducting circular microstrip patch in the case where the patch is printed on uniaxially anisotropic substrate materials.  Merits of our extended model include low computational cost and mathematical simplify. The numerical simulation of this modeling shows excellent agreement with experimental results available in the literature. Finally, numerical results for the dielectric anisotropic substrates effects on the operating frequencies for the case of superconducting circular patch are also presented.

scholarly journals Resonance of Superconducting Microstrip Antenna with Aperture in the Ground Plane

2013 ◽  
Vol 2 (2) ◽  
pp. 22
Author(s):  
S. Benkouda ◽  
T. Fortaki ◽  
M. Amir ◽  
A. Benghalia
Keyword(s):  
Microstrip Antenna ◽  
Ground Plane ◽  
Complex Surface ◽  
Published Data ◽  
Wave Analysis ◽  
High Tc ◽  
Microstrip Patch ◽  
Full Wave ◽  
Full Wave Analysis ◽  
Rectangular Microstrip Antenna

This paper presents a rigorous full-wave analysis of a high Tc superconducting rectangular microstrip antenna with a rectangular aperture in the ground plane. To include the effect of the superconductivity of the microstrip patch in the full-wave analysis, a complex surface impedance is considered. The proposed approach is validated by comparing the computed results with previously published data. Results showing the effect of the aperture on the resonance of the superconducting microstrip antenna are given.

Neurospectral computation for the resonant characteristics of microstrip patch antenna printed on uniaxially anisotropic substrates

2016 ◽  
Vol 9 (3) ◽  
pp. 613-620
Author(s):  
Lamia Barkat ◽  
Sami Bedra ◽  
Tarek Fortaki ◽  
Randa Bedra
Keyword(s):  
Computational Cost ◽  
Solution Process ◽  
Microstrip Antennas ◽  
Spectral Domain ◽  
Numerical Comparison ◽  
Microstrip Patch ◽  
Anisotropic Substrates ◽  
Domain Method ◽  
Anisotropic Substrate ◽  
Rectangular Microstrip Antenna

Modeling and design of rectangular microstrip patch printed on isotropic or anisotropic substrate are accomplished in this paper. The use of spectral domain method in conjunction with artificial neural networks (ANNs) to compute the resonant characteristics of rectangular microstrip patch printed on isotropic or anisotropic substrates. The moment method implemented in the spectral domain offers good accurateness, but its computational cost is high owing to the evaluation of the slowly decaying integrals and the iterative nature of the solution process. The paper introduces the electromagnetic knowledge combined with ANN in the analysis of rectangular microstrip antenna on uniaxially anisotropic substrate to reduce the complexity of the spectral domain method and to minimize the CPU time necessary to obtain the numerical results. The numerical comparison between neurospectral and conventional moment methods shows significant improvements in time convergence and computational cost. Hence, the use of neurospectral approach presented here as a promising fast technique in the design of microstrip antennas.

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