Title :
Anomalous Noise in Schottky Diode Mixers at Millimeter Wavelengths
Author_Institution :
Goddard Inst. for Space Studies, New York, NY, USA
Abstract :
Measurements on state-of-the-art 85 GHz mixers using GaAs Schottky-barrier diodes give high values of noise temperature ratio (~1.3) and loss temperature (~500°K) despite low conversion loss (~5dB SSB) and input noise temperature (~600°K SSB). The source of this noise has not yet been identified.
Keywords :
III-V semiconductors; Schottky diode mixers; gallium arsenide; millimetre wave diodes; millimetre wave mixers; Schottky diode mixers; Schottky-barrier diodes; anomalous noise; frequency 85 GHz; millimeter wavelengths; Amplitude modulation; Attenuators; Frequency conversion; Loss measurement; Millimeter wave measurements; Mixers; Noise measurement; Schottky diodes; Signal to noise ratio; Temperature;
Conference_Titel :
Microwave Symposium, 1975 IEEE-MTT-S International
Conference_Location :
Palo Alton, CA
DOI :
10.1109/MWSYM.1975.1123379
