Title :
Recent developments in 180 GHZ MMIC LNA and receiver technology
Author :
Kangaslahti, Pekka
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
Humidity sounding of the atmosphere is a highly important measurement for operational weather forecasting and science purposes. Currently the humidity profile is observed with ground based, airborne and LEO satellite instruments by measuring radiometric temperature on the flanks of the 183 GHz water vapor line. We have developed MMIC based LNAs and receivers with less that 400 K noise temperature for current airborne and future space based humidity sounding instruments.
Keywords :
atmospheric humidity; atmospheric measuring apparatus; radiometry; weather forecasting; LEO satellite instruments; MMIC LNA; high electron mobility transistors; humidity profile; indium phosphide; millimeter wave field-effect transistor amplifiers; monolithic millimeter wave integrated low noise amplifier; noise temperature; operational weather forecasting; radiometric temperature; receivers; space based humidity sounding instruments; water vapor line; MMICs; Noise; Radiometers; Receivers; Sea measurements; Temperature measurement; Transmission line measurements; high electron mobility transistors (HEMTs); indium phosphide; millimeter wave field-effect transistor (FET) amplifiers; monolithic millimeter wave integrated low noise amplifier;
Conference_Titel :
Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2010 11th Specialist Meeting on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-8120-0
Electronic_ISBN :
978-1-4244-8121-7
DOI :
10.1109/MICRORAD.2010.5559547
