<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author><author><style face="normal" font="default" size="100%">Randa, Bedra</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Study of an Inverted Rectangular Patch Printed on Anisotropic Substrates (In press), e-ISSN 0974-780X</style></title><secondary-title><style face="normal" font="default" size="100%">IETE Journal of ResearchIETE Journal of Research</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2019</style></date></pub-dates></dates><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The resonant frequencies and bandwidths of the inverted rectangular patch over anisotropic substrates are investigated in this paper. A rigorous analysis is performed using dyadic Green’s function formulation in the vector Fourier transform domain. The Galerkin’s technic is then used in the resolution of the integral equation; the complex resonance frequencies for the TM01 mode are studied with sinusoidal basis functions. The numerical results obtained are compared with previously published numerical results computed by means of the electromagnetic simulator “IE3D software”. Good agreement is found in all cases among all sets of results. For an isotropic substrate, it is confirmed that the bandwidth decreases with increasing of air-gap layer for high permittivity and low thickness of the substrate. Also, we show that the resonant frequencies and bandwidths are highly dependent on the permittivity variations alongside the optical axis. Other theoretical results attained display that the resonant frequencies downtrend monotonically with increasing substrate thickness, the diminution being larger for the uniaxial anisotropy of the substrate. Finally, numerical results for the effects of uniaxial anisotropy in the substrate on the radiation of the inverted rectangular microstrip structure are also presented.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sofiane, Boughrara Akrame</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Abdelouahab, Bouraiou</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Study of Stacked High Tc Superconducting Circular Disk Microstrip Antenna in Multilayered Substrate Containing Isotropic and/or Uniaxial Anisotropic Materials, e-ISSN</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced ElectromagneticsAdvanced Electromagnetics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2019</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N°3</style></number><volume><style face="normal" font="default" size="100%">Volume 8</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In this paper, we present a rigorous full-wave analysis able to estimate exactly the resonant characteristics of stacked high Tc superconducting circular disk microstrip antenna. The superconducting patches are assumed to be embedded in a multilayered substrate containing isotropic and/or uniaxial anisotropic materials (the analysis is valid for an arbitrary number of layers). London’s equations and the two-fluid model of Gorter and Casimir are used in the calculation of the complex surface impedance of the superconducting circular disks. Numerical results are presented for a single layer structure as well as for two stacked circular disks fabricated on a double-layered substrate.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmed, Mahamdi</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Amir, Mounir</style></author><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Study of two-layered circular patch using moment method and genetic Algorithms, e-ISSN 2088-8708</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Electrical &amp; Computer EngineeringInternational Journal of Electrical &amp; Computer Engineering</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2019</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N° 6</style></number><volume><style face="normal" font="default" size="100%">Volume 9</style></volume><pages><style face="normal" font="default" size="100%">pp 5368 - 5375</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In this paper, new expressions for the effective radius and fringing capacitance have been derived to predict accurately the resonant frequency of the two-layered circular microstrip patch antenna. These expressions are obtained based on genetic algorithm and the data base is generated using moment method (MOM). The proposed model is very simple, fast, and valid for an entire range of permittivities and thicknesses of two-layered substrate. The present model has been validated by comparing our numerical results obtained for the resonant frequencies with measurements. Finaly, the effect of the two-layered substrate on the resonant charateristics of the circular microstrip patch antenna has been presented.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author><author><style face="normal" font="default" size="100%">Randa, Bedra</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Analysis of HTS circular patch antennas including radome effects. International Journal of Microwave and Wireless Technologies,e-ISSN 1759-0795</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Microwave and Wireless TechnologiesInternational Journal of Microwave and Wireless Technologies</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2018</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">Issue 7</style></number><volume><style face="normal" font="default" size="100%">Volume 10</style></volume><pages><style face="normal" font="default" size="100%">pp 843-850</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In this paper, the resonant frequencies, quality factors and bandwidths of high Tc superconducting circular microstrip patches in the presence of a dielectric superstrate loading have been studied using Galerkin testing procedure in the Hankel transform domain. The exact Green’s function of the grounded dielectric slab is used to derive an electric field integral equation for the unknown current distribution on the circular disc. Thus, surface waves, as well as space wave radiation, are included in the formulation. London’s equations and the two-fluid model of Gorter and Casimir are used in the calculation of the complex surface impedance of the superconducting circular disc. Galerkin testing is used in the resolution of the electric field integral equation. Two solutions using two different basis sets to expand the unknown disk currents are developed. The first set of basis functions used is the complete set of transverse magnetic and transverse electric modes of a cylindrical cavity with magnetic side walls. The second set of basis functions used employ Chebyshev polynomials and enforce the current edge condition. The computed values for a wide range of variations of superstrate thickness and dielectric constant are compared with different theoretical and experimental values available in the open literature, showing close agreement. Results are showing that the superstrate parameters should always be kept into account in the design stage of the superconducting microstrip resonators. &amp;nbsp;</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sarah, Bouttout</style></author><author><style face="normal" font="default" size="100%">BentrciaYoussouf</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Parametric Study of Stacked Microstrip Patch Antenna with Dissimilar Substrates, ISSN / e-ISSN 2077-6772 / 2306-4277</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Nano- and Electronic PhysicsJournal of Nano- and Electronic Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2018</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N°4</style></number><volume><style face="normal" font="default" size="100%">volume 10</style></volume><pages><style face="normal" font="default" size="100%">pp 04004-1-04004-4</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A complete parametric study of stacked rectangular microstrip patches printed on non-magnetic isotropic substrate is performed. The numerical results are obtained by applying the method of moments to the electric field integral equations. Detailed closed-form expressions of Green’s functions are presented. The new results found indicate that, the lower resonant frequency is mainly determined by the patch etched on the thicker layer. The layer having the higher permittivity defines which resonance is mainly determined by the bottom patch, either the upper resonance if the upper layer has the higher permittivity, or the lower resonance in opposite case. All these results offer better understanding and thus a better control of the dual-band operating of the microstrip antenna. Therefore, a proper choice of the antenna parameters becomes possible in order to obtain the desired functional characteristics.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">BentrciaYoussouf</style></author><author><style face="normal" font="default" size="100%">Sarah, Bouttout</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Spectral domain analysis of rectangular stacked patches printed on a substrate characterized by dielectric and magnetic anisotropy, e-ISSN 1572-8137</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Computational ElectronicsJournal of Computational Electronics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2018</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N°1</style></number><volume><style face="normal" font="default" size="100%">Volume 17</style></volume><pages><style face="normal" font="default" size="100%">pp 399–405</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Spectral domain formulation is provided for the analysis of rectangular stacked patches printed on a substrate characterized by dielectric and magnetic uniaxial anisotropy. Detailed analytical expressions of the dyadic Green’s functions are derived. Galerkin’s procedure is applied to solve the electric field integral equations, and the resonance characteristics are determined by solving the characteristic equation. Numerical results show that the influence of the magnetic anisotropy on the resonant frequencies is highly dependent on the permeability of the medium, where for a non-magnetic medium, the impact of the existing anisotropy was found negligible. However, for a magnetic medium, the anisotropy has a large impact on the resonant frequencies. Moreover, the influence of each of the components of the permeability tensor has been also reported.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ahmed, Mahamdi</style></author><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author><author><style face="normal" font="default" size="100%">Randa, Bedra</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">CAD cavity model analysis of high Tc superconducting rectangular patch printed on anisotropic substrates</style></title><secondary-title><style face="normal" font="default" size="100%">5th International Conference on Electrical Engineering - Boumerdes (ICEE-B)</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://ieeexplore.ieee.org/abstract/document/8192168</style></url></web-urls></urls><pub-location><style face="normal" font="default" size="100%">Boumerdes, Algeria</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;
	This paper, present the resonant and the radiation characteristics of superconducting rectangular microstrip antenna printed on uniaxailly anisotropic substrate using an electromagnetic approach based on cavity model in conjunction with electromagnetic knowledge. The cavity model combined with London's equations and the Gorter-Casimir two-fluid model has been improved to investigate the resonant characteristics as well as the radiation patterns of high Tc superconducting rectangular microstrip patch in the case where the patch is printed on uniaxially anisotropic substrate materials. The most advantage 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, radiation patterns of superconducting rectangular patch on anisotropic substrate are also presented.
&lt;/p&gt;
</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author><author><style face="normal" font="default" size="100%">Randa, Bedra</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficient CAD Model to Analysis of High Tc Superconducting Circular Microstrip Antenna on Anisotropic Substrates. Advanced Electromagnetics, e-ISSN 2119-0275</style></title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N°2</style></number><volume><style face="normal" font="default" size="100%">Volume 6</style></volume><pages><style face="normal" font="default" size="100%">pp 40-45</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">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.&amp;nbsp; 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.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">An efficient study of circular microstrip antenna on suspended and composite substrates, e-ISSN 1572-8137</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Computational ElectronicsJournal of Computational Electronics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N° 3</style></number><volume><style face="normal" font="default" size="100%">Volume 16</style></volume><pages><style face="normal" font="default" size="100%">pp 922-2017</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In this paper, an efficient full-wave analysis of a circular microstrip patch printed on suspended and composite substrates is performed using a dyadic Green’s function formulation. Galerkin’s technique is used in the resolution of the integral equation of the electric field. The TM set of modes issued, from the magnetic wall cavity model, are used to expand the unknown currents on the circular patch. The radiation patterns are expressed regarding the transforms of the currents. The convergence of the method is proven by calculating the resonant frequencies, half-power bandwidths, and quality factors for several configurations. The computed results are found to be in excellent agreement with those observed in the literature. The numerical results obtained show that the bandwidth increases with the increase in the thickness of the suspended or composite substrates, especially for low permittivity of the second layer. Also, it is demonstrated that the resonant frequencies of the circular microstrip patch on suspended and composite substrates can be adjusted to obtain the maximum operating frequency of the antenna. Finally, the effect of the presence of the second layer under the circular patch on the radiation patterns is also investigated.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sami, Bedra</style></author><author><style face="normal" font="default" size="100%">Randa, Bedra</style></author><author><style face="normal" font="default" size="100%">Siham, Benkouda</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Superstrate loading effects on the resonant characteristics of high Tc superconducting circular patch printed on anisotropic materials, e-ISSN 0921-4534</style></title><secondary-title><style face="normal" font="default" size="100%">Physica C: Superconductivity and Its ApplicationsPhysica C: Superconductivity and Its Applications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">Volume 543</style></volume><pages><style face="normal" font="default" size="100%">pp 1-7</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In this paper, the effects of both anisotropies in the substrate and superstrate loading on the resonant frequency and bandwidth of high-Tc superconducting circular microstrip patch in a substrate-superstrate configuration are investigated. A rigorous analysis is performed using a dyadic Galerkin’s method in the vector Hankel transform domain. Galerkin’s procedure is employed in the spectral domain where the TM and TE modes of the cylindrical cavity with magnetic side walls are used in the expansion of the disk current. The effect of the superconductivity of the patch is taken into account using the concept of the complex resistive boundary condition. London’s equations and the two-fluid model of Gorter and Casimir are used in the calculation of the complex surface impedance of the superconducting circular disc. The accuracy of the analysis is tested by comparing the computed results with previously published data for several anisotropic substrate-superstrate materials. Good agreement is found among all sets of results. The numerical results obtained show that important errors can be made in the computation of the resonant frequencies and bandwidths of the superconducting resonators when substrate dielectric anisotropy, and/or superstrate anisotropy are ignored. Other theoretical results obtained show that the superconducting circular microstrip patch on anisotropic substrate-superstrate with properly selected permittivity values along the optical and the non-optical axes combined with optimally chosen structural parameters is more advantageous than the one on isotropic substrate-superstrate by exhibiting wider bandwidth characteristic.</style></abstract></record></records></xml>