English Electric Valve Company Limited

Richard G Carter

Robin C King

Alan Griggs

A coupled cavity TWT comprises a hollow copper tube having a plurality of tranverse walls of iron which define cavities. The walls each include an aperture on the longitudinal axis of the tube through which an electron beam passes during operation of the TWT. Any energy dissipated by electrons colliding with the surfaces of the apertures is conducted as heat away from the walls along thermal conduction paths which include copper elongate members.

Coupled cavity travelling wave tubes

A coupled cavity travelling wave tube of the space harmonic type is provided wherein the interaction gaps in successive cavities are alternately offset towards the input end of the slow wave structure and towards the output of the slow wave structure, whereby beam electrons which are synchronous at band edge frequencies tend to experience a phase reversal in the electro-magnetic wave propagating in the slow wave structure, at each successive interaction gap.

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Carnforth, United Kingdom

Richard G Carter