Digital helix for a traveling-wave tube and process for fabricat

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure

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333162, 29600, H01J 2324, H01J 2534

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active

052313301

ABSTRACT:
A traveling-wave tube, wherein the wire helix of prior art devices is replaced by a digital helix formed within a composite structure of thick or thin film substrates. The traveling-wave tube helix is formed from multiple substrate layers, each having conductive segments surrounded by insulating material. The superimposing of the substrate layers causes conductive segments from adjacent layers to partially overlap and form a continuous slow-wave structure between an input lead and an output lead, that mimics a traditional wire helix. The composite structure creation of the traveling-wave tube helix allows traveling-wave tubes to be miniaturized and increased in efficiency to point previously unachievable by traditional wire helix devices.

REFERENCES:
patent: 3157847 (1964-11-01), Williams
patent: 3436690 (1969-04-01), Grolant et al.
patent: 3504223 (1970-03-01), Orr et al.
patent: 3505730 (1970-04-01), Nelson
patent: 3654509 (1972-04-01), Scott et al.
patent: 4647816 (1987-03-01), Heynisch
patent: 4729510 (1988-03-01), Landis

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