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US 10,535,488 B2Granted
Slow waveguide for travelling wave tube
AssigneeThales
InventorAlain Durand
Life of this patent
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Abstract
A slow waveguide for travelling wave tube includes a central plate comprising a beam slip hole, rectilinear in the same direction as the longitudinal axis of the central plate, a bottom plate and a top plate closing the waveguide, respectively arranged on and under the central plate, and a slit folded in the form of a snake having its folds in the direction of the thickness of the guide.
Claims8
A slow waveguide for travelling wave tube comprising:
- a central plate comprising a beam slip hole, rectilinear in the same direction as the longitudinal axis of the central plate, a bottom plate and a top plate closing the waveguide, respectively arranged on and under the central plate, and
- a slit folded in the form of a snake having a plurality of folds folded vertically up and down in the direction of the thickness of the waveguide.
A method for fabricating a slow waveguide for travelling wave tube comprising steps of:
- drilling a beam slip hole, rectilinear in the same direction as the longitudinal axis of a central plate;
- drilling a series of parallel open slits in the central plate, the slits being at right angles to the beam slip hole, forming a series of blades between two parallel consecutive slits;
- and
- producing irises forming a plurality of folds of a folded slit folded vertically up and down in the direction of the thickness of the waveguide, by at least one of:
- alternately machining the successive blades on one face then the other of the central plate, and
- alternately machining bottom and top plates facing the parallel slits.
3 more elements
Dependencies are inferred from the claim text.