DocumentCode :
981161
Title :
Unidirectional Paramagnetic Amplifier Design
Author :
Strandberg, M.W.P.
Author_Institution :
Res. Lab. of Electronics, Mass. Inst. Tech., Cambridge, Mass.
Volume :
48
Issue :
7
fYear :
1960
fDate :
7/1/1960 12:00:00 AM
Firstpage :
1307
Lastpage :
1320
Abstract :
The radio-frequency parameters and the quantummechanical parameters entering into the design of paramagnetic quantum-mechanical amplifiers are described and discussed. The physical and electrical limitations on such parameters as gain-bandwidth product, gain stability, and nonreciprocity are described analytically and with design curves. Two realizations of nonreciprocal amplifiers are described and discussed. In particular, operation of a nonreciprocal amplifier at 9 kmc is described. Explanations for the observed properties of previously reported amplifiers are given, and the steps necessary to achieve high gain-bandwidth product and nonreciprocity with paramagnetic amplifiers are described.
Keywords :
Concrete; L-band; Low-noise amplifiers; Noise figure; Operational amplifiers; Paramagnetic materials; Radio frequency; Radiofrequency amplifiers; Solid state circuits; Stability analysis;
fLanguage :
English
Journal_Title :
Proceedings of the IRE
Publisher :
ieee
ISSN :
0096-8390
Type :
jour
DOI :
10.1109/JRPROC.1960.287655
Filename :
4066176
Link To Document :
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