Title :
Experimental results of SIS mixers with distributed junction arrays
Author :
Shi, Sheng-Cai ; Noguchi, Takashi ; Inatani, Junji ; Irimajiri, Yoshihisa ; Saito, Toshimi
Author_Institution :
Purple Mountain Obs., JiangSu, China
fDate :
11/1/1998 12:00:00 AM
Abstract :
The heterodyne mixing performance of three respective distributed junction arrays, i.e., a number of superconductor-insulator-superconductor (SIS) junctions distributed along a thin-film transmission line involving two, five, and ten junctions are measured and compared to their Fourier transform spectroscopy (FTS) detection responses. It has been found that distributed junction arrays have a rather large bandwidth in comparison to conventional SIS junction devices, while still keeping a quantum-limited noise performance. Detailed experimental results are presented
Keywords :
Fourier transform spectroscopy; submillimetre wave mixers; superconducting arrays; superconducting microwave devices; superconducting transmission lines; superconductor-insulator-superconductor mixers; Fourier transform spectroscopy; SIS mixers; distributed junction arrays; heterodyne mixing performance; quantum-limited noise performance; thin-film transmission line; Bandwidth; Critical current density; Josephson junctions; Observatories; Submillimeter wave propagation; Superconducting devices; Superconducting thin films; Superconducting transmission lines; Transmission line theory; Waveguide junctions;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
