04398121 is referenced by 157 patents and cites 5 patents.

In a gyrotron electron tube of the gyro-klystron or gyro-monotron type, having a cavity supporting an electromagnetic mode with circular electric field, spurious resonances can occur in modes having noncircular electric field. These spurious resonances are damped and their frequencies shifted by a circular groove in the cavity parallel to the electric field.

Title
Mode suppression means for gyrotron cavities
Application Number
6/232059
Publication Number
4398121
Application Date
February 5, 1981
Publication Date
August 9, 1983
Inventor
Robert S Symons
Los Altos
CA, US
Marvin Chodorow
Stanford
CA, US
Agent
Richard B Nelson
Stanley Z Cole
Assignee
Varian Associates
CA, US
IPC
H01J 25/00
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