Microwave characteristics of high T/sub c/ superconducting coplanar waveguide resonator

How, H.; Seed, R.; Vittoria, C.; Chrisey, D. B.; Horwitz, J. S.; Carosella, C.A.; Folen, V. J.

doi:10.1109/22.149546

Cited by 24 publications

(9 citation statements)

References 6 publications

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“…The reactive part of the conductivity (−iσ 2 ) arises from the lossless motion of the superconducting carries which may be derived from the Lorentz-force equation as [12][13][14]:…”

Section: Theorymentioning

confidence: 99%

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Improving the Performances of a High Tc Superconducting Circular Microstrip Antenna With Multilayered Configuration and Aniso Tropic Dielectrics

Benmeddour

Dumond

Benabdelaziz³

et al. 2011

PIER C

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. Improving the performances of a high Tc superconducting circular microstrip antenna with multilayered configuration and anisotropic dielectrics. Progress In Electromagnetics Research, EMW Publishing, 2010, vol. 18, pp 169-183. Progress In Electromagnetics Research C, Vol. 18, 169-183, 2011 IMPROVING Abstract-The moment method technique has been improved to investigate the scattering properties of high T c superconducting circular antennas with anisotropic substrate in multi-layered configuration. In this method, the electric field integral equation for a current element on a grounded dielectric slab of infinite extent was developed by basis functions involving Chebyshev polynomials. An improved analytical model is presented taking into account anisotropic substrate, superconducting material for the circular patch and multilayered structure. To validate the theoretical results, an experimental study has been performed for a perfectly conducting circular patch on a single layer, with and without air gap. Good agreements were obtained between our theory and measurements. Effects of temperature and thickness of a superconducting film are also reported and discussed. The performances of high T c superconducting circular antennas were improved by the use of uniaxial anisotropy substrate and multilayer configuration.

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“…The reactive part of the conductivity (−iσ 2 ) arises from the lossless motion of the superconducting carries which may be derived from the Lorentz-force equation as [12][13][14]:…”

Section: Theorymentioning

confidence: 99%

“…with: ξ = k ρ a To include the effect of the superconductivity of the microstrip antenna in full-wave analysis, surface complex impedance for a plane electromagnetic wave incident normally to its surface is defined as the ratio of |E| to |H| on the surface of the sample it is given by [12][13][14]:…”

Section: Theorymentioning

confidence: 99%

Improving the Performances of a High Tc Superconducting Circular Microstrip Antenna With Multilayered Configuration and Aniso Tropic Dielectrics

Benmeddour

Dumond

Benabdelaziz³

et al. 2011

PIER C

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“…Such a surface resistance gives a small power loss. If the penetration depth 2, = 3.6 x 10-'m for the case of conduction along the c-axis and the surface resistance is equal to 10.3 mR (60 K) at 14.567GHz (How et al 1992), the attenuation coefficient is found to be about 0.9dB n -I for R,-30mR. The metal loss is the same as for conventional waveguides.…”

Section: Atrenuation Coeficientmentioning

confidence: 72%

Rectangular waveguides with two conventional and two superconducting walls

Yalamanchili

Qiu

1995

International Journal of Electronics

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Rectangularwaveguides with two conventional and two superconducting walls RAJ YALAMANCHILIt, ZHENG AN QIUt and YEN-CHU WANGtThe propagation properties of TEm" modes and their dispersion relations in rectangular waveguides with two conventional and two superconducting walls, derived by using the Meissner boundary conditions on the superconducting walls, are presented. In addition to recovering some previously known results, some novel results have been obtained: the cut-off wavelength of the dominant TE t°m ode is greater than that of the conventional TE_o mode, and the tangential electric field and normal magnetic field for the dominant mode TE 1°exist on the superconducting surfaces. Expressions for electromagnetic components, surface currents, attenuation coefficient, maximum transmitted power, dispersion and wave impedance are also presented.

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“…The reactive part of the conductivity (−iσ 2 ) arises from the lossless motion of the superconducting carriers which may be derived directly from the Lorentz-force equation as [11] …”

Section: Theorymentioning

confidence: 99%

“…To include the effect of the superconductivity of the microstrip patch in the full-wave analysis, a complex surface impedance is considered. This impedance is determined by using London's equation and the two-fluid model of Gorter and Casimir [11,12]. Numerical results for the effect of the thickness of the high T c superconducting film on the resonant frequency of the rectangular microstrip antenna with and without rectangular aperture in the ground plane are given.…”

mentioning

confidence: 99%

Fourier Transform Domain Analysis of High T c Superconducting Rectangular Microstrip Patch over Ground Plane with Rectangular Aperture

Chebbara

Benkouda

Fortaki

2010

J Infrared Milli Terahz Waves

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A rigorous full-wave analysis in the Fourier transform domain is carried out in order to obtain the resonant frequencies and half-power bandwidths of the high T c superconducting rectangular microstrip patches over ground planes with rectangular apertures. To include the effect of the superconductivity of the microstrip patch in the full-wave analysis, a complex surface impedance is considered. This impedance is determined by using London's equation and the two-fluid model of Gorter and Casimir. The validity of the solution is tested by comparison of the computed results with previously published data. Variations of the resonant frequency with the high T c superconducting film thickness are presented. Results showing the effect of the temperature on the resonant frequency and half-power bandwidth of the superconducting microstrip antenna with a rectangular aperture in the ground plane are also given. Finally, a comparison between the efficiency of two antennas is presented. For the first antenna, YBCO patch with YBCO ground plane are considered. For the second antenna, the patch and the ground plane are with copper.

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Microwave characteristics of high T/sub c/ superconducting coplanar waveguide resonator

Cited by 24 publications

References 6 publications

Improving the Performances of a High Tc Superconducting Circular Microstrip Antenna With Multilayered Configuration and Aniso Tropic Dielectrics

Improving the Performances of a High Tc Superconducting Circular Microstrip Antenna With Multilayered Configuration and Aniso Tropic Dielectrics

Rectangular waveguides with two conventional and two superconducting walls

Fourier Transform Domain Analysis of High T c Superconducting Rectangular Microstrip Patch over Ground Plane with Rectangular Aperture

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