Title :
Design and performance of wideband, low-noise, millimeter-wave amplifiers for Microwave Anisotropy Probe radiometers
Author :
Pospieszalski, M.W. ; Wollack, E.J. ; Bailey, N. ; Thacker, D. ; Webber, J. ; Nguyen, L.D. ; Le, N. ; Lui, M.
Author_Institution :
Nat. Radio Astron. Obs., Charlottesville, VA, USA
Abstract :
Differential pseudo-correlation radiometers covering 20-25 GHz, 28-37 GHz, 35-46 GHz, 53-69 GHz and 82-106 GHz are used in the Microwave Anisotropy Probe (MAP) mission to be launched in late 2000. This paper describes the design, performance and manufacturing of 140 InP HFET amplifiers suitable for cryogenic cooling which exhibit low noise performance and complex gain match over the given radiometer bandwidths (typical noise temperature of 90 K, or 1.2 dB noise figure, for W-band amplifier at 80 K ambient).
Keywords :
III-V semiconductors; astronomical instruments; cryogenic electronics; hybrid integrated circuits; indium compounds; integrated circuit noise; millimetre wave amplifiers; millimetre wave field effect transistors; millimetre wave integrated circuits; radiofrequency cosmic radiation; radiometers; wideband amplifiers; 1.2 dB; 20 to 106 GHz; 80 K; EHF; InP; InP HFET amplifiers; MAP mission; Microwave Anisotropy Probe radiometers; W-band amplifier; complex gain match; cosmic microwave background mapping; cryogenic cooling; differential pseudo-correlation radiometers; hybrid MM-wave IC technology; low-noise amplifiers; millimeter-wave amplifiers; wideband MM-wave LNAs; Anisotropic magnetoresistance; HEMTs; Indium phosphide; Low-noise amplifiers; MODFETs; Noise figure; Probes; Pulp manufacturing; Radiometers; Wideband;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.860877
