Superstrate loading effects on the resonant characteristics of high T c  superconducting circular patch printed on anisotropic materials

Bedra, Sami; Bedra, Randa; Benkouda, Siham; Fortaki, Tarek

doi:10.1016/j.physc.2017.09.006

Cited by 7 publications

(13 citation statements)

References 19 publications

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“…The substrate material is uniaxially anisotropic with the optical axis being normal to the patch. The uniaxial substrate is characterized by the free-space permeability μ 0 and a permittivity tensor of the form [4]ε…”

Section: Resonant Frequency Of Microstrip Antennasmentioning

confidence: 99%

“…Since the discovery of high-temperature superconductivity (HTS), tremendous technical breakthroughs have been made in the development of these materials and gained the attention of scientists and engineers around the world [1,2]. A superconducting microstrip antenna was one of the first microwave components demonstrated as an application of high-temperature superconducting material [3,4]. The primary advantage of using superconducting materials in the development of microstrip antennas is the reduction of ohmic losses associated with the radiator and ancillary feed and matching networks [1].…”

Section: Introductionmentioning

confidence: 99%

“…The primary advantage of using superconducting materials in the development of microstrip antennas is the reduction of ohmic losses associated with the radiator and ancillary feed and matching networks [1]. Another advantage of a high-temperature superconducting microstrip antenna (HTSMA) is the increase in efficiency or gain [4]. Several researchers have often drawn attention to microstrip antennas because of their usefulness in wireless communication, radar systems, and remote sensing applications [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Another advantage of a high-temperature superconducting microstrip antenna (HTSMA) is the increase in efficiency or gain [4]. Several researchers have often drawn attention to microstrip antennas because of their usefulness in wireless communication, radar systems, and remote sensing applications [3][4][5]. Due to multiple features, unique and attractive advantages such as low profile, compactness, low weight to handle, low cost, and being able to fabricate on a printed circuit board [1,7,8].…”

Section: Introductionmentioning

confidence: 99%

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Computer-Aided Design of Superconducting Equilateral Triangular Patch on Anisotropic Substrates

Gadda¹,

Bedra²,

Agaba³

et al. 2019

PIER M

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The effects of both anisotropy in the substrates and the superconducting films on the resonant frequencies and radiation patterns of an equilateral triangular patch are investigated theoretically. Our proposed method is based on the modified cavity model in conjunction with the electromagnetic knowledge. The validity of the proposed method is tested by comparing the computed results of the resonant characteristics with experimental data. Results show effects of the superconducting patch thickness as well as the anisotropy in the substrate on the resonant frequency and the radiation pattern of the triangular patch. The effects of the antenna parameters on resonant frequencies and radiation patterns are also presented and discussed. At higher substrate thicknesses, numerical results indicate that the radiation pattern is drastically changed. The resonant frequency, on the other hand, decreases with high equivalent permittivity of the anisotropic substrate. The proposed method is very fast, simple, and compatible well with CAD.

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Section: Resonant Frequency Of Microstrip Antennasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Computer-Aided Design of Superconducting Equilateral Triangular Patch on Anisotropic Substrates

Gadda¹,

Bedra²,

Agaba³

et al. 2019

PIER M

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“…The paper is organized as follows: Section 2 presents the mathematical formulation of the problem. In Section 3 numerical results are compared with experimental results [21] seen in literature as well as with the most recent published calculations on this topic using different methods: (1) a CAD model analysis [15] and (2) a similar full wave analysis but using a different type of expansion basis functions [20]. Finally, in Section 4 the effects of a protective dielectric superstrate on the resonance frequency and bandwidth of a HTS circular printed antenna are presented and discussed and conclusions are given in Section 5.…”

Section: Introductionmentioning

confidence: 99%

Resonant Characteristics of Circular HTC Superconducting Printed Antenna Covered With a Dielectric Layer

Benmeddour¹,

Dumond²,

Kenane³

2018

PIER M

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Effects of a superstrate layer on the resonant frequency and bandwidth of a high Tc superconducting (HTS) circular printed patch are investigated in this paper. For that, a rigorous full-wave spectral analysis of superconducting patch in multilayer configuration is described. In such an approach, the spectral dyadic Green's function which relates the tangential electric field and currents at various conductor planes should be determined. Integral equations are solved by a Galerkin's moment method procedure, and the complex resonance frequencies are studied with basis functions involving Chebyshev polynomials in conjunction with the complex resistive boundary condition. To include the superconductivity of the disc, its complex surface impedance is determined by using London's equation and the model of Gorter and Casimir. Numerical results are compared with experimental results of literature as well as with the most recent published calculations using different methods. A very good agreement is obtained. Finally, superstrate loading effects are presented and discussed showing interesting enhancement on the resonant characteristics of the superconducting antenna using combinations of Chebyshev polynomials as set of basis functions.

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Characteristics of HTS inverted circular patches on anisotropic substrates

et al. 2021

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Superstrate loading effects on the resonant characteristics of high T c superconducting circular patch printed on anisotropic materials

Cited by 7 publications

References 19 publications

Computer-Aided Design of Superconducting Equilateral Triangular Patch on Anisotropic Substrates

Computer-Aided Design of Superconducting Equilateral Triangular Patch on Anisotropic Substrates

Resonant Characteristics of Circular HTC Superconducting Printed Antenna Covered With a Dielectric Layer

Characteristics of HTS inverted circular patches on anisotropic substrates

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