Title :
Characterization of Nb-based superconducting microstrip lines around the gap frequency
Author :
Sheng-Cai Shi ; Chi-Chung Chin ; Wen Zhang
Author_Institution :
Purple Mountain Obs., Nanjing, China
Abstract :
Submillimeter-wave SIS mixers usually adopt junctions associated with an integrated tuning circuit, which tunes out the junction´s capacitance and is typically a thin-film superconducting microstrip line. This paper mainly investigates the characteristic of Nb-based superconducting microstrip lines around the junction´s gap frequency and its effect on the performance of SIS mixers.
Keywords :
circuit tuning; microstrip lines; niobium; submillimetre wave mixers; superconducting microwave devices; superconductor-insulator-superconductor mixers; Nb-Al/sub 2/O/sub 3/-SiO/sub 2/-Nb/sub 2/O/sub 5/-Nb; gap frequency; integrated tuning circuit; submillimeter-wave SIS mixers; thin-film superconducting microstrip line; Capacitance; Circuit optimization; Frequency; Josephson junctions; Microstrip; Submillimeter wave integrated circuits; Superconducting devices; Superconducting thin films; Thin film circuits; Tuned circuits;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.893101
