Title :
A low noise M-type parametric amplifier
Author :
Klüver, J. Wilhelm
Author_Institution :
Bell Telephone Laboratories, Inc., Murray Hill, N. J.
fDate :
5/1/1964 12:00:00 AM
Abstract :
A degenerate crossed-field cyclotron wave parametric amplifier in which all three interaction circuits are half-wave coaxial cavities is described. At a signal frequency of 1957 Mc the over-all measured noise figure was 5 db with a contribution due only to beam noise of 3.2 db. The signal saturation gain at low input levels was 40 db. The amplifier operated with a beam current of a few microamperes and a beam voltage of a few tenths of a volt. Several differences between the O-type and the M-type cyclotron wave parametric amplifiers are discussed. Other experimental results are reported.
Keywords :
Circuit noise; Cyclotrons; Electron beams; Frequency; Low-noise amplifiers; Magnetic noise; Noise figure; Noise measurement; Testing; Voltage;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/T-ED.1964.15314
