Title :
Broadband cryogenic parametric amplifier operating at 11.6 GHz
Author :
Thirlwell, J. ; McPherson, J. ; Bell, R.R.
Author_Institution :
Post Office Research Centre, Telecommunications Headquarters, Ipswich, UK
Abstract :
A machine-cooled cryogenic parametric amplifier that operates at 20 K is described. The 2-stage amplifier has a 0.5 dB bandwidth of 600 MHz at 20 dB gain and an effective input noise temperature in the range 47¿51 K over the frequency band of 11.3 to 11.9 GHz
Keywords :
parametric amplifiers; wideband amplifiers; 11.3 to 11.9 Ghz; microwave devices; parametric amplifiers; wideband amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19740260
