Title :
High Sensitivity Submillimeter Heterodyne Receiver
Author :
Fetterman, H.R. ; Tannenwald, P.E. ; Clifton, B.J. ; Parker, C.D. ; Fitzgerald, W.D.
Abstract :
Radiometric sensitivity measurements have been made on a quasi-optical receiver in the spectral range 170 mu m to 1 mm. Using GaAs Schottky mixer diodes in a corner reflector configuration, a total system noise temperature of 9,700 K (DSB) has been obtained at 447 mu m. This same quasi-optical mixer has also been used for harmonic generation of tunable radiation suitable for spectroscopic applications.
Keywords :
Extraterrestrial measurements; Frequency; Gallium arsenide; Plasma temperature; Radiometry; Reflector antennas; Schottky diodes; Spectroscopy; Temperature sensors; Tunable circuits and devices;
Conference_Titel :
Microwave Symposium Digest, 1978 IEEE-MTT-S International
Conference_Location :
Ottawa, ON, Canada
DOI :
10.1109/MWSYM.1978.1123916
