Helix travelling-wave tube with a maximum small signal gain at t

Details Helix travelling-wave tube with a maximum small signal gain at t Helix travelling-wave tube with a maximum small signal gain at t

1996-10-03

1998-03-03

Pascal, Robert

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 393, H01J 2534

Patent

active

057239487

ABSTRACT:
A helix travelling-wave tube of the present invention includes a helix wave delay circuit having velocity tapers for improving a beam efficiency and reducing backward wave oscillation. The tube allows a small signal and a large signal synchronous voltage to coincide or be extremely close to each other and thereby allows its circuit to have a minimum length. The tube is therefore small size and light weight and involves a minimum of gain variation against voltage variation.

REFERENCES:
patent: 3324342 (1967-06-01), Eallonardo
patent: 4378512 (1983-03-01), Tsutaki
patent: 5162697 (1992-11-01), Davis et al.

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