Title :
A Noise Investigation of Tunnel-Diode Microwave Amplifiers
Author :
Yariv, A. ; Cook, J.S.
Author_Institution :
Bell Telephone Labs., Inc., Murray Hill, N.J.
fDate :
4/1/1961 12:00:00 AM
Abstract :
An analysis and derivation of the noise figure of a tunnel-diode microwave amplifier are presented. The agreement between the measured noise figure and the theoretical results is an indirect check on the existence of full shot noise in germanium tunnel diodes at microwave frequencies. The limiting noise temperature of the amplifier is eI0R/2k, and can be approached by using diodes with small (RC) products in which the extreme overcoupling (load mismatch) and high gain can be achieved simultaneously.
Keywords :
Circuit noise; Equivalent circuits; Frequency measurement; Germanium; Light emitting diodes; Microwave amplifiers; Microwave measurements; Noise figure; Noise generators; Noise measurement;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1961.287844
