Title :
Broadband Characterization of a 100 to 180 GHz Amplifier
Author :
Kangaslahti, P. ; Deal, W.R. ; Mei, X.B. ; Lai, R.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA
Abstract :
Atmospheric science and weather forecasting require measurements of the temperature and humidity vs. altitude. These sounding measurements are obtained at frequencies close to the resonance frequencies of oxygen (118 GHz) and water (183 GHz) molecules. We have characterized a broadband amplifier that will increase the sensitivity of sounding and other instruments at these frequencies. This study demonstrated for the first time continuous low noise amplification from 100 to 180 GHz. The measured InP monolithic millimeter-wave integrated circuit (MMIC) amplifier had more than 18 dB of gain from 100 to 180 GHz and 15 dB of gain up to 220 GHz. This is the widest bandwidth low noise amplifier result at these frequencies to date. The circuit was fabricated in Northrop Grumman Corporation 35 nm InP high electron mobility transistor (HEMT) process.
Keywords :
high electron mobility transistors; low noise amplifiers; millimetre wave amplifiers; weather forecasting; wideband amplifiers; HEMT; MMIC amplifier; Northrop Grumman Corporation; atmospheric science; broadband amplifier; frequency 100 GHz to 180 GHz; high electron mobility transistor; low noise amplifier; monolithic millimeter-wave integrated circuit; time continuous low noise amplification; weather forecasting; Acoustic noise; Atmospheric measurements; Broadband amplifiers; Frequency; Gain; HEMTs; Indium phosphide; Integrated circuit noise; Temperature measurement; Weather forecasting; MMIC; high electron mobility transistors (HEMTs); indium phosphide; millimeter wave field-effect transistor (FET) amplifiers; monolithic millimeter wave integ low noise amplifier;
Conference_Titel :
Aerospace Conference, 2008 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
978-1-4244-1487-1
Electronic_ISBN :
1095-323X
DOI :
10.1109/AERO.2008.4526405
