3 October 1998 Integrated receiver for heterodyne detection dedicated to space applications
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Abstract
This paper is devoted to the presentation of an Integrator Dewar Cooling Assembly dedicated to high frequency space applications. SAGEM SA has been a manufacturer of IR InSb and HgCdTe detectors for a long time. These detectors cover a large spectral range. The capability to use HgCdTe photovoltaic detectors for heterodyne applications at 10.6 micrometers has been demonstrated in the frame of ESA and CNES contracts. SAGEM SA has recently developed a new concept of heterodyne receiver, totally integrated, operating at variable temperatures down to 77K, using HgCdTe or InSb photovoltaic detectors. This receiver is an innovative product due to its small volume, its low weight and its low electrical consumption. The miniaturization of this product the latter to be used in space applications, specially for the earth observation missions. The performance of such a receiver with respect of the electrical bandwidth is presented in order to compare it with a receiver for terrestrial or airborne applications based on the use of a laboratory HF dewar.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joel Fleury, Joel Fleury, Olivier Girard, Olivier Girard, Michel Royer, Michel Royer, Michel Bidaud, Michel Bidaud, } "Integrated receiver for heterodyne detection dedicated to space applications", Proc. SPIE 3439, Earth Observing Systems III, (3 October 1998); doi: 10.1117/12.325618; https://doi.org/10.1117/12.325618
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