Integrated receiver for heterodyne detection dedicated to space applications

Joel Fleury; Olivier Girard; Michel Royer; Michel Bidaud

doi:10.1117/12.325618

3 October 1998 Integrated receiver for heterodyne detection dedicated to space applications

Joel Fleury, Olivier Girard, Michel Royer, Michel Bidaud

Proceedings Volume 3439, Earth Observing Systems III; (1998) https://doi.org/10.1117/12.325618
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

Citation Download Citation

Joel Fleury, Olivier Girard, Michel Royer, and Michel Bidaud "Integrated receiver for heterodyne detection dedicated to space applications", Proc. SPIE 3439, Earth Observing Systems III, (3 October 1998); https://doi.org/10.1117/12.325618

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KEYWORDS

Sensors

Heterodyning

Receivers

Mercury cadmium telluride

Photovoltaic detectors

Radiometry

Infrared radiation

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