DocumentCode :
945876
Title :
Backward-Wave Oscillators
Author :
Johnson, H.R.
Author_Institution :
Res. and Dev. Labs., Hughes Aircraft Co., Culver City, Calif.
Volume :
43
Issue :
6
fYear :
1955
fDate :
6/1/1955 12:00:00 AM
Firstpage :
684
Lastpage :
697
Abstract :
The Pierce traveling-wave tube theory is modified to apply to the backward-wave oscillator. Theoretical dependence of both starting current and frequency upon space charge and circuit loss is calculated, as is the dependence of efficiency upon these parameters. Good experimental confirmation is obtained with two tubes, one of which was of adjustable length. Pushing, pulling, stability, frequency gaps, and spurious oscillations are described and explained. Lack of oscillation at low-voltage end of tuning range of some tubes is tentatively assigned to a velocity-distribution effect.
Keywords :
Circuit optimization; Circuit stability; Electron devices; Frequency; Impedance; Klystrons; Oscillators; Space charge; Tuning; Wideband;
fLanguage :
English
Journal_Title :
Proceedings of the IRE
Publisher :
ieee
ISSN :
0096-8390
Type :
jour
DOI :
10.1109/JRPROC.1955.278054
Filename :
4055478
Link To Document :
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