High-temperature superconducting wide band delay lines

Autor: S.H. Talisa, D.C. Buck, D.L. Meier, M.A. Janocko, R.L. Grassel, P. LePage, J. Talvacchio, G.R. Wagner, S.J. Pieseski, C. Moskowitz, R.S. Nye
Rok vydání: 1995
Předmět:
Zdroj: IEEE Transactions on Appiled Superconductivity. 5:2291-2294
ISSN: 1051-8223
DOI: 10.1109/77.403043
Popis: Stripline non-dispersive delay lines with 20 GHz of bandwidth were designed and fabricated using YBCO thin films deposited on both sides of 2-inch-diameter, 10-mil thick LaAlO/sub 3/ wafers. A double-wound spiral configuration was used yielding a line length of approximately 150 cm. Novel approaches were used to minimize the effect of air gaps between the two substrates needed to form the stripline structure, and to realize a wide band transition from the coaxial external connections to stripline. Experimental results showed 5 dB of insertion loss at 20 GHz, with 1 dB amplitude ripple over most of the 0-20 GHz, range for a 22.5 ns delay. >
Databáze: OpenAIRE