Title :
Ultra-low-noise amplifier for the ranges 0.5-1, 1-2, 2-4 GHz: design peculiarities
Author :
Korolev, A.M. ; Shulga, V.M.
Author_Institution :
Radioastron. Inst., Nat. Acad. of Sci., Ukraine
Abstract :
Ultra-low-noise amplifiers, having noise temperature 10-20 K under moderate (uncryogenic) cooling, for the ranges 0.5-1, 1-2, 2-4 GHz are presented. The design peculiarities aimed to the most effective realization of modern PHEMTs potential are described. Relying on obtained experimental data prediction, it is drown that noise temperature of uncooled broadband amplifiers may be reduced down to 10 K over 0.3 to 3 GHz band.
Keywords :
HEMT circuits; UHF amplifiers; circuit noise; cryogenic electronics; wideband amplifiers; 0.5 GHz to 1 GHz; 1 GHz to 2 GHz; 10 to 20 K; 2 to 4 GHz; VSWR; broadband amplifier; modern PHEMT potential; noise temperature; pseudomorphic high electron mobility transistor; ultra-low-noise amplifier; voltage standing wave ratio; HEMTs; Helium; IEEE catalog; Low-noise amplifiers; Microwave theory and techniques; Organizing; PHEMTs;
Conference_Titel :
Microwave and Telecommunication Technology, 2003. CriMiCo 2003. 13th International Crimean Conference
Conference_Location :
Sevastopol, Crimea, Ukraine
Print_ISBN :
966-7968-26-X
DOI :
10.1109/CRMICO.2003.158778
