Twt slow-wave structure assembled from three ladder- like slabs

Details Twt slow-wave structure assembled from three ladder- like slabs Twt slow-wave structure assembled from three ladder- like slabs

H - Electricity

01

J

353/8

H01J 25/34 (2006.01) H01J 23/24 (2006.01)

Patent

CA 1180446

-9- Abstract TWT Slow-Wave Structure Assembled From Three Ladder-Like Slabs This invention concerns a slow-wave circuit which is electrically equivalent to the well-known folded-waveguide or coupled-cavity circuit with staggered coupling slots. The central portion of the circuit is a metallic ladder. The ladder rungs are wide and flat to form the equivalent of flat cavities. The rungs have axially aligned holes thru their centers for beam passage. A pair of coupling ladders are joined to opposite sides of the central ladder. They have apertures or recesses spaced at twice the pitch of the central ladder; the recesses are aligned to provide a coupling duct between each pair of adjacent cavities, and cavity-closing walls at the ends of the pair. The coupling recesses in the two coupling ladders are staggered by the cavity pitch so that the coupling ducts are on alternating sides of the cavities.

408312

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