Low-noise crossed-field amplifier

Details Low-noise crossed-field amplifier Low-noise crossed-field amplifier

1989-02-28

1990-05-22

Wan, Gene

Amplifiers

With traveling wave-type tube

315 393, H03F 358, H01J 2534

Patent

active

049280708

ABSTRACT:
A crossed-field amplifier circuit of the type using a CFA tube with a slow-wave structure for the anode and the cathode, each with an input and an output terminal, and a magnetic field in the axial direction, and signals of the same frequency from a common source and of controlled phase difference and amplitude applied to the input terminals of the anode and cathode slow-wave structures whose fringing fields interact with the electron cloud between the anode and the cathode to form well defined cloud fingers which result in amplification of the input signals to provide at the output terminal of the anode an amplified signal having lower random noise than hitherto available from CFA amplifiers.

REFERENCES:
patent: 4413208 (1983-11-01), Morizot

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