Low noise receiver with helium cooled parametric amplifier
Keyword(s):
1961 ◽
Vol 9
(1)
◽
pp. 39-43
◽
1990 ◽
Vol 38
(11)
◽
pp. 1898-1900
◽
Keyword(s):
1981 ◽
Vol 52
(3)
◽
pp. 391-394
◽