A model for the klystron cavity gap
Abstract
Calculation of the fields in a klystron tunnel in the neighborhood of an ungridded gap requires an assumption about the field distribution across thef open gap. Assumptions made in the past include the uniform field (Wang) anad the cos h variation (Kosmahl and Branch). This paper presents a set of empirical explicit equations for the field and other parameters in terms of the gap dimensions, including the radius of curvature of the noses. The gap coupling factor is then found by reduction of a set of numerical trajectory integrations. An explicit formula is given for the equivalent griddedgap transit angle in terms of the corrected coupling factor.
 Publication:

IEEE Transactions on Electron Devices
 Pub Date:
 November 1985
 DOI:
 10.1109/TED.1985.22298
 Bibcode:
 1985ITED...32.2482V
 Keywords:

 Cavities;
 Computerized Simulation;
 Klystrons;
 Coupling;
 Gaps;
 Hyperbolic Functions;
 Electronics and Electrical Engineering