Development of components for submillimeter wave heterodyne radiometers at JPLComponents for the key elements of submillimeter wave heterodyne receivers are described. The devices and components are inherently space qualifiable having low power and mass needs and exhibiting robustness. Nb and NbN superconductor insulator superconductor (SIS) tunnel junctions are selected for the nonlinear mixing element because of their robustness. NbN exhibits a large superconducting bandgap, allowing operation in excess of 1500 GHz. Both waveguide mounts, for the lower frequencies and planar antenna mixer mounts for the higher frequency range, are used. Quasi-optical components are used for frequency multiplexing and combining.
Document ID
19910012704
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Frerking, Margaret A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hunt, B. D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Leduc, H. G. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mcgrath, W. R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Siegel, P. H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tolmunen, T. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1990
Publication Information
Publication: ESA, From Ground-Based to Space-Borne Sub-mm Astronomy