Title :
Development of a 0.5-THz Waveguide NbN-Based SIS Mixer
Author :
Li, Jing ; Takeda, Masanori ; Wang, Zhen ; Shi, Sheng-Cai
Author_Institution :
CAS, Nanjing
Abstract :
This paper mainly reports the development of a 0.5-THz waveguide SIS (superconductor - insulator - superconductor) mixer, which adopts twin NbN-based SIS junctions (NbN/AlN/NbN) connected in parallel. The 0.5-THz waveguide NbN SIS mixer is designed incorporating with a 51-mum thick MgO substrate and a waveguide mixer mount with no back-short cavity. Detailed simulation results, junction fabrication process and junction I-V characteristics are described. Preliminary FTS (Fourier transform spectrometer) measurement results will also be discussed.
Keywords :
Fourier transform spectroscopy; magnesium compounds; niobium compounds; submillimetre wave mixers; superconductor-insulator-superconductor mixers; waveguide components; Fourier transform spectrometer measurement; MgO; NbN; THz waveguide SIS mixer; frequency 0.5 THz; junction I-V characteristics; junction fabrication process; size 51 mum; superconductor-insulator-superconductor mixer; Extraterrestrial measurements; Feeds; Frequency; Impedance; Josephson junctions; Microstrip; Niobium; Superconducting device noise; Superconducting devices; Waveguide junctions;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381460
