TWT Interaction circuit with broad ladder rungs

Details TWT Interaction circuit with broad ladder rungs TWT Interaction circuit with broad ladder rungs

1981-07-29

1983-10-11

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

333256, 315 36, 315 393, H01J 2534

Patent

active

044095180

ABSTRACT:
A slow-wave circuit suitable for a high-frequency traveling-wave tube has an array of metallic ladder rungs extending transversely across an elongated envelope and not in contact with the envelope except at the ends of the rungs. The envelope has a cross-shaped section to provide a fundamental backward wave. The rungs preferably have aligned apertures to pass a beam of electrons in traveling-wave interaction with the circuit.
By making the rungs transversely broader than a critical value, the lowest passband of the circuit has poles of impedance at both its ends, whereby more efficient interaction is obtained, along with greater stability.

REFERENCES:
patent: 2827588 (1958-03-01), Guenard et al.
patent: 2920227 (1960-01-01), Dohler et al.
patent: 2942142 (1960-06-01), Dench
patent: 3171086 (1965-02-01), Gerlach
patent: 3387234 (1968-06-01), Sobotka

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