Cooled reentrant TWT ladder circuit having axially raised coolin

Details Cooled reentrant TWT ladder circuit having axially raised coolin Cooled reentrant TWT ladder circuit having axially raised coolin

1991-09-30

1994-11-08

Lee, Benny T.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 535, 313 22, 313 36, H01J 2324, H01J 23087

Patent

active

053630165

ABSTRACT:
A PPM coupled-cavity traveling wave tube has an RF structure comprising a re-entrant double-staggered ladder circuit. Several cavities are separated by iron pole pieces with penetrating slots to provide RF coupling between the cavities. Re-entrant copper bars are attached to both sides of the pole pieces that define the boundaries between adjacent pairs of cavities. These bars extend diametrically across the cavity interior around beam drift tubes The re-entrant bars on adjacent pole pieces are rotated relative to each other by 90 degrees about the beam axis. The bars are hollow along their length, and thereby provide channels for coolant flow around the drift tubes. These channels communicate through apertures with coolant distribution channels in the outer cavity walls extending along the length of the traveling-wave tube.

REFERENCES:
patent: 3246190 (1966-04-01), Boyd et al.
patent: 3449618 (1969-06-01), Gallagher
patent: 3617798 (1971-11-01), Marchese et al.
patent: 4746833 (1988-05-01), King et al.
patent: 4748377 (1988-05-01), King
patent: 4891556 (1990-01-01), Iwamoto

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