Coupled cavity travelling wave tubes

Details Coupled cavity travelling wave tubes Coupled cavity travelling wave tubes

H - Electricity

01

J

316/7

H01J 9/00 (2006.01) B23P 13/02 (2006.01) H01J 23/24 (2006.01)

Patent

CA 1235456

13 Abstract Improvements in or relating to Coupled Cavity Travelling Wave Tubes A millimetre coupled cavity travelling wave tube has each of its slow wave structures formed of at least one longitudinally extending member having holes made therethrough by a hobbing process, which holes con- stitute at least in part the cavities of the slow wave structure. In a preferred embodiment a one and one only such longitudinally extending member is provided, the holes therein each a whole cavity. The hobbing is such that a buttress is left outstanding from each cavity facing surface of a cavity separating wall and the beam hole is bored axially through said member from end to end through said buttresses. After machining of the cavity coupling holes in the cavity separating walls (e.g. by spark erosion) the cavities are closed by plates brazed to opposite faces of the member.

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