Title :
A Liquid Helium Cooled 4-GHz Broad-Band Parametric Amplifier (Correspondence)
fDate :
9/1/1968 12:00:00 AM
Keywords :
Circuit noise; Coupling circuits; Helium; Image storage; Physics; Radio frequency; Radiofrequency amplifiers; Radiometry; Switches; Temperature;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1968.1126787
