Double semiconductor substrate in overlay shielded superconducting microstrip lines |
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Authors: | Humberto César Chaves Fernandes Idalmir de Souza Queiroz Júnior |
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Affiliation: | 1. Department of Electrical Engineering-Technological Center, Federal University of Rio Grande do Norte, P.O.Box 1583, 59.072-970, Natal-RN, Brazil
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Abstract: | The Transverse Transmission Line (TTL) is used in the theory of the overlay shielded microstrip lines considering the superconductor strip on two semiconductor regions. The superconductor effect is included with the boundary condition of the surface impedance, that is related to the complex conductivity of the material, calculated from the advanced two-fluid model. Applying the moment method the complex propagation constant of the structure, including the phase constant and the attenuation constant, is obtained. Results are presented for the complex propagation constant, versus the frequency and the temperature, of this overlay superconducting microstrip lines. |
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