Millimeter-wave waveguide-bandwidth cryogenically-coolable InP HEMT amplifiers

Millimeter-wave waveguide-bandwidth cryogenically-coolable InP HEMT amplifiers

The design, construction and performance of 65-90 GHz and 75-110 GHz low-noise cryogenically-coolable amplifiers are presented. A comparison between modeled and measured performance is shown. A laboratory receiver exhibiting an average noise of 50 K across 65-90 GHz and 70 K across 75-110 GHz is des...

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Hauptverfasser: Pospieszalski, M.W., Lakatosh, W.J., Wollack, E., Nguyen, L.D., Minh Le, Lui, M., Takyiu Liu
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Circuit noise
Couplings
Cryogenics
HEMTs
Indium phosphide
Low-noise amplifiers
Millimeter wave technology
Observatories
Radio astronomy
Temperature
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Beschreibung
Zusammenfassung:The design, construction and performance of 65-90 GHz and 75-110 GHz low-noise cryogenically-coolable amplifiers are presented. A comparison between modeled and measured performance is shown. A laboratory receiver exhibiting an average noise of 50 K across 65-90 GHz and 70 K across 75-110 GHz is described. These are the widest band and lowest noise HEMT receivers ever reported at these frequencies.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.1997.596562