Method and apparatus for reducing noise in crossed-field amplifi

Details Method and apparatus for reducing noise in crossed-field amplifi Method and apparatus for reducing noise in crossed-field amplifi

1976-09-29

1978-04-04

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load with distributed parameter-type...

315 35, 315 36, 330 43, H01J 2534

Patent

active

040829790

ABSTRACT:
Noise in reentrant-stream crossed-field amplifiers is suspected of being generated by electrons re-entering the interaction region with large amplitude cycloidal motion near the slow-wave circuit. Means to increase the electric field in a portion of the drift region preceding the circuit lowers the noise, presumably by collecting these electrons. The field may be increased by decreasing the spacing between cathode and drift electrode or by applying a bias voltage on an insulated electrode.

REFERENCES:
patent: 3069587 (1962-12-01), Dench
patent: 3069594 (1962-12-01), Feinstein
patent: 3609581 (1971-09-01), McDowell
patent: 3733509 (1973-05-01), Wilczek
patent: 3863100 (1975-01-01), Belohoubek

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