DocumentCode :
3552618
Title :
An X band voltage tunable magnetron using a θ mode interdigital structure
Author :
Cook, E.J. ; Frutiger, W.A.
Author_Institution :
Varian Associates, Beverly, Mass.
fYear :
1967
fDate :
18-20 Oct. 1967
Firstpage :
28
Lastpage :
30
Abstract :
Circuit coupling considerations make conventional pi mode VTM operation above C band an increasingly difficult task. This paper reviews a program, sponsored under U. S. Army Electronics Command Contract No. DA- 36-039-AMC-02199E, in which many of the restraints on higher frequency VTM operation have been relaxed through the use of the N/2±1 modes of an interdigital structure. Among the principal advantages of this higher order mode operation are: (a) circuit sizes in band comparable to conventional S band devices; (b) the opportunity for heavy coupling, and (c) a reduction in cathode radiation. The major complicating factor is that mode separation is not equivalent to the pi mode ease and that the two null field patterns of the N/2±1 modes are spatially degenerate. These problems, though, have been overcome by careful choice of vane number and by the use of mode positioners.
Keywords :
Cathodes; Coaxial components; Contracts; Frequency; Magnetic separation; Microwave devices; Tunable circuits and devices; Tuners; Tuning; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electron Devices Meeting, 1967 International
Conference_Location :
Washington, DC, USA
Type :
conf
DOI :
10.1109/IEDM.1967.187789
Filename :
1474870
Link To Document :
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