Title :
HTS/Ferroelectric CPW Structures for Voltage Tuneable Phase Shifters
Author :
Vendik, O.G. ; Carlsson, E.F. ; Petrov, P.K. ; Chakalov, R.A. ; Gevorgian, S.S. ; Ivanov, Z.G.
Author_Institution :
Electrotechnical University, St.-Petersburg, 197376, RUSSIA. Phone: +7 (812) 234 59 80, FAX: +7 (812) 234 48 09, E-mail: vendik@hollmann.usr.etu.spb.ru
Abstract :
Coplanar waveguides (CPW) based on single and multilayered ferroelectric films with high-Tc superconducting (HTS) and golden electrodes have been investigated in the frequency range between 40 MHz and 40 GHz with the goal of designing voltage tuneable phase shifters operating at cryogenic temperatures. Tuneability and losses are investigated as function of temperature and voltage. The quality factor of a tuneable component K is introduced and discussed. The results obtained are promising for design of voltage controlled analog phase shifter.
Keywords :
Coplanar waveguides; Cryogenics; Electrodes; Ferroelectric films; Ferroelectric materials; Frequency; High temperature superconductors; Phase shifters; Superconducting films; Voltage;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337796
