Title :
Low-Noise, Fixed Tuned, Broadband Mixer for 200-270 GHz
Author :
Archer, J.W. ; Faber, M.T.
fDate :
May 30 1984-June 1 1984
Abstract :
A cryogenic, single-ended, fundamental frequency mixer is reported. Contrary to common practice, the mixer utilizes a Schottky diode with high zero bias capacitance of 7 fF and a vely short whisker (less than 90 µm). This unusual approach together with a careful design and optimization have yielded an extremely broadband, low-noise mixer which, when fixed tuned and cooled to 21K, has a single sideband (SSB) mixer temperature less than 600K for a local oscillator frequency range of greater than 200 GHz to 270 GHz.
Keywords :
Capacitance; Cutoff frequency; Feeds; Gallium arsenide; Impedance; Inductance; Noise reduction; Schottky diodes; Temperature; Waveguide transitions;
Conference_Titel :
Microwave Symposium Digest, 1984 IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
DOI :
10.1109/MWSYM.1984.1131861
