Patent · US Expired

Coupled cavity traveling-wave tube with oblong cavities for increased bandwidth

US3989978A · kind A · utility

5Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 20, 1976
Grant dateNov 2, 1976
Priority date
Expiry dateFeb 20, 1996

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J23/24
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A coupled cavity traveling-wave tube is disclosed wherein each interaction cavity has an oblong configuration in a plane perpendicular to the tube axis. The oblong cavities have a length-to-width ratio of a predetermined value between about 1.2 and 1.6, preferably being about 1.5. Coupling apertures in the end walls separating adjacent interaction cavities extend circumferentially about half way around aligned circular electron beam holes along the tube axis, with the circumferential extremeties of the coupling apertures lying substantially parallel to the length of the oblong interaction cavities.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.