Title :
A 1.4 GHz MMIC Active Cold Noise Source
Author :
Scheeler, Robert ; Popovic, Zoya
Author_Institution :
Dept. of Electr., Comput., & Energy Eng., Univ. of Colorado, Boulder, CO, USA
Abstract :
A GaAs MMIC active cold load for a wearable microwave radiometer is presented. A design procedure capable of achieving a minimum noise temperature at a specific bias point is described. A measured equivalent noise temperature of less than 90 K from 1.3 GHz to 1.5 GHz while maintaining an input return loss greater than 28 dB is demonstrated.
Keywords :
III-V semiconductors; MMIC; UHF devices; biomedical measurement; radiometers; thermometers; GaAs; MMIC active cold load; design procedure; frequency 1.3 GHz to 1.5 GHz; wearable microwave medical thermometer; wearable microwave radiometer; Impedance matching; Inductance; MMICs; Microwave radiometry; Noise; Optimized production technology; Temperature measurement;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium (CSICS), 2013 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/CSICS.2013.6659183
