Analysis of high T/sub c/ superconducting microstrip antennas and arrays

Silva, S.G. da; D’Assunção, Adaildo G.; Oliveira, Jose de Ribamar Silva

doi:10.1109/imoc.1999.867100

Cited by 10 publications

(16 citation statements)

References 8 publications

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“…When the thickness of the superconducting patch is less than three times of the zero-temperature penetration depth (λ 0 ), Z s can be expressed as follows [16][17][18][19]:…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…It is determined by using London's equation and the Gorter-Casimir two-fluid model as [16][17][18][19] …”

Section: Mathematical Formulationmentioning

confidence: 99%

“…In fact, let ω = 2π(f r + if i ) be the complex root of Eq. (19). In that case, the quantity f r stands for the resonant frequency; the quantity BW = 2f i /f r stands for the half-power bandwidth; the quantity Q = f r /(2f i ) stands for the quality factor.…”

Section: Mathematical Formulationmentioning

confidence: 99%

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Effects of Superstrate Layer on the Resonant Characteristics of Superconducting Rectangular Microstrip Patch Antenna

Bedra¹,

Fortaki²

2016

PIER C

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Abstract-The resonant characteristics of superconducting rectangular microstrip patch antenna with a superstrate layer are investigated using a full-wave spectral analysis in conjunction with the complex resistive boundary condition. The complex surface impedance of superconducting patch is determined using London's equation and the two-fluid model of Gorter and Casimir. Numerical results using the full-wave analysis presented here are in excellent agreement with theoretical and experimental results available in the open literature. Numerical results show that the effect of the superstrate layer on the resonant frequency and half-power bandwidth of the superconducting rectangular patch is stronger than that of the structure without superstrate layer as both the thickness and permittivity of the superstrate increase. Finally, numerical results concerning the effects of the parameters of superstrate-substrate and superconducting patch on the antenna performance are also presented and discussed.

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“…When the thickness of the superconducting patch is less than three times of the zero-temperature penetration depth (λ 0 ), Z s can be expressed as follows [16][17][18][19]:…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…It is determined by using London's equation and the Gorter-Casimir two-fluid model as [16][17][18][19] …”

Section: Mathematical Formulationmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Superstrate Layer on the Resonant Characteristics of Superconducting Rectangular Microstrip Patch Antenna

Bedra¹,

Fortaki²

2016

PIER C

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“…In order to confirm the computation accuracy, our results are compared with the theoretical results of Richard et al [7] and Silva et al [8] when there is no aperture in the ground plane. The patch is fabricated with a YBCO superconducting thin film with parameters σ n = 10 6 S/M, T c = 89 K, λ 0 = 140 nm and e= 350 nm.…”

Section: Convergence and Comparison Of Numerical Resultsmentioning

confidence: 79%

Resonance of Superconducting Microstrip Antenna with Aperture in the Ground Plane

Benkouda

Fortaki

Amir³

et al. 2013

AEM

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This paper presents a rigorous full-wave analysis of a high T c 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.

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“…When the thickness of the superconducting patch is less than three times the penetration depth λ at a temperature K 0 = T ) ( 0 λ , the surface impedance can be expressed as in [14,Eq. (28)].…”

Section: Outline Of the Numerical Proceduresmentioning

confidence: 99%

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

Benkouda¹,

Fortaki

Amir

et al. 2014

AEM

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The effect of a protecting dielectric superstrate on the resonance of a high T c superconducting microstrip patch is investigated. The analysis approach is based on the spectraldomain 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 T c superconducting rectangular patch decreases monotonically with increasing superstrate thickness, the decrease being greater for high permittivity loading.

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Analysis of high T/sub c/ superconducting microstrip antennas and arrays

Cited by 10 publications

References 8 publications

Effects of Superstrate Layer on the Resonant Characteristics of Superconducting Rectangular Microstrip Patch Antenna

Effects of Superstrate Layer on the Resonant Characteristics of Superconducting Rectangular Microstrip Patch Antenna

Resonance of Superconducting Microstrip Antenna with Aperture in the Ground Plane

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

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