MMIC amplifier based receivers for Earth remote sensing

Creators: Dawson, Douglas; Gaier, Todd; Weinreb, Sander; Morgan, Matt; Wells, Mary

Others:: Appleby, Roger; Wikner, David A.; Trebits, Robert; Kurtz, James L.

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Abstract

We have developed amplifier based receivers using Indium Phosphide high electron mobility transistor (HEMT) monolithic microwave integrated circuit (MMIC) technology. These compact receivers are designed with atmospheric temperature and humidity sounding requirements in mind, operating at 100-125 GHz around the 118 GHz oxygen line, and at 160-185GHz near the 183 GHz water line, with average noise temperatures of 1600 and 1200K respectively. They are intended for applications where small volume and power consumption are critical. We will present laboratory data on the noise temperature of these receivers operated at room temperature and preliminary field data.

Additional Information

© 2003 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.The authors would like to thank George Komar and Jonathan Hartley of the NASA ESTO office, and Loren Lemmerman of the JPL Earth Science and Technology Directorate for their support of this study.The authors also thank Mike Sholley, Matt Nishimoto, Ron Grundbacher, and Rohit Raja of TRW; and Mike Delaney and Adele Schmitz of HRL.Both HRL and TRW provided invaluable support for the development of the MMIC components.Also Gene Fisher for critical and precise assembly work.

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