Title :
High-TC Superconducting Phase Shifters
Author :
Vendik, I.B. ; Gaidukov, M.M. ; Kaparkov, D.I. ; Kozyrev, A.B. ; Kuznetsov, V.V. ; Osadchiy, V.N.
Author_Institution :
St.-Petersburg Electrotechnical University, St.-Petersburg, 197376, Russia
Abstract :
An extensive study of problems related to the development of microwane digital phase shifters based on S-N transition of HTSC films under dc control current is performed. A new geometry for the HTSC switch with reduced inductivity is proposed. A design procedure and results of experimental investigation of 180-degrees phase shifters are presented. In the case of YBCO films on sapphire substrates no degradation effects in the S-N switches under dc and pulsed current were observed.
Keywords :
Dielectric substrates; Geometry; Insertion loss; Microwave technology; Phase shifters; Reflection; Superconducting films; Superconducting microwave devices; Surface resistance; Switches;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337499
