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Coplanar Transmission Lines with Meandering Center Conductors in Y-Ba-Cu-O/Au Bilayers



C Weber, Ronald H. Ono, James Booth, Leila R. Vale, Samuel Benz, A. M. Klushin, H. Kohlstedt, C. Buchal, R. Semerad


We have investigated both conventional and meandering coplanar microwave transmission lines patterned in Y-Ba-Cu-O/Au bilayers on yttria-stablized zirconia and sapphire substrates. Within the meandering waveguides, the gentre conductor was deformed from a straight line to a meander. Such a layout could be useful for metrological high-Tc superconductor arrays, which are based on series arrays of shunted YBCO bicrystral junctions. The microwave properties of the lines were measured in the range 0-40 GHz at 76 K, using on-chip through-reflect-line calibrations. We discuss the measured attenuation in terms of conductor losses in the bilayers and show to what extend the disturbance of the line geometry affects the microwave properties.
Superconductor Science and Technology


coplaner waveguide, high temperature superconductors, Josephson arrays


Weber, C. , Ono, R. , Booth, J. , Vale, L. , Benz, S. , Klushin, A. , Kohlstedt, H. , Buchal, C. and Semerad, R. (1999), Coplanar Transmission Lines with Meandering Center Conductors in Y-Ba-Cu-O/Au Bilayers, Superconductor Science and Technology, [online], (Accessed April 23, 2024)
Created December 30, 1999, Updated October 12, 2021