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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/41596

Title: Miniature MMIC low mass/power radiometer modules for the 180 GHz GeoSTAR array
Authors: Kangaslahti, Pekka
Tanner, Alan
Pukala, David
Gaier, Todd
Lambrigtsen, Bjorn
Lim, Boon
Mei, Xiaobing
Lai, Richard
Keywords: high electron mobility transistors (HEMTs)
indium phosphide
millimeter wave field-effect transistor (FET)
monolithic millimeter wave integrated low noise amplifier
Monolithic Microwave Integrated Circuit (MMIC)
I-Q receiver
Issue Date: 22-Jun-2010
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010.
Citation: ESTF 2010 (Earth Science Technology Forum), Washington, D. C., June 22, 2010.
Abstract: We have developed and demonstrated miniature 180 GHz Monolithic Microwave Integrated Circuit (MMIC) radiometer modules that have low noise temperature, low mass and low power consumption. These modules will enable the Geostationary Synthetic Thinned Aperture Radiometer (GeoSTAR) of the Precipitation and All-weather Temperature and Humidity (PATH) Mission for atmospheric temperature and humidity profiling. The GeoSTAR instrument has an array of hundreds of receivers. Technology that was developed included Indium Phosphide (InP) MMIC Low Noise Amplifiers (LNAs) and second harmonic MMIC mixers and I-Q mixers, surface mount Multi-Chip Module (MCM) packages at 180 GHz, and interferometric array at 180 GHz. A complete MMIC chip set for the 180 GHz receiver modules (LNAs and I-Q Second harmonic mixer) was developed. The MMIC LNAs had more than 50% lower noise temperature (NT=300K) than previous state-of-art and MMIC I-Q mixers demonstrated low LO power (3 dBm). Two lots of MMIC wafers were processed with very high DC transconductance of up to 2800 mS/mm for the 35 nm gate length devices. Based on these MMICs a 180 GHz Multichip Module was developed that had a factor of 100 lower mass/volume (16x18x4.5 mm3, 3g) than previous generation 180 GHz receivers.
URI: http://hdl.handle.net/2014/41596
Appears in Collections:JPL TRS 1992+

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