Research/Patents/US 4912366
US 4912366

COAXIAL TRAVELING WAVE TUBE AMPLIFIER

Assignee

RATHEON COMPANY, A CORP. OF DE.

Filed

Dec 7, 1987

Granted

Mar 27, 1990

Location

Arlington VA (defense contractors)

Abstract

A coaxial TWT comprises a hollow beam gun which injects a thin annular beam between multifilar helices independently supported by thin-walled dielectric sleeves. The beam is focussed by a balanced, coaxial PPM focussing assembly, causing a stable hollow beam flow. The input and output coupling helixes, and the interaction helices which form the slow-wave structure on the exterior and the interior of the hollow beam, respectively, are preferably counterwound with respect to each other to provide greater frequency bandwidth than when similarly wound. Input and output helix coupling to either the inner or the outer helix is possible.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 10, 1989

Rescinded

Oct 6, 1989

Duration

8 months

Inventor

  • 1NORMAN J. DIONNE

Sensitive facility: Arlington VA (defense contractors)

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records