Frequency-spreading coupler

Details Frequency-spreading coupler Frequency-spreading coupler

1982-09-23

1985-01-29

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 5, 315 36, 315 393, 328233, 333208, 333210, 330 43, H01J 2500

Patent

active

044968760

ABSTRACT:
A wide band travelling wave amplifier including an input waveguide coaxia disposed about an interaction waveguide. Both waveguides are tapered with the same direction of increasing cross-section. The interaction waveguide is a high-pass filter while the input waveguide is a low pass filter. The input waveguide is positioned relative to the interaction waveguide so that each cutoff plane in the input waveguide corresponding to a given frequency, .omega..sub.c, is displaced in the direction of increasing cross-section from a cutoff plane in the interaction waveguide corresponding to .omega..sub.c where .omega..sub.c is any frequency in the frequency band of the amplifier. A slot, disposed between the cutoff planes corresponding to .omega..sub.c couples the .omega..sub.c frequency component of an input wave from the input waveguide to the interaction waveguide.

REFERENCES:
patent: 3046503 (1962-07-01), Cohn
patent: 3273011 (1966-09-01), Brown
patent: 3398376 (1968-08-01), Hirshfield
patent: 3571651 (1971-03-01), Wilbur
patent: 3611214 (1971-10-01), Gerlack
patent: 3887832 (1975-06-01), Drummond et al.
patent: 4053810 (1977-10-01), James
patent: 4070595 (1978-01-01), Miller
patent: 4143299 (1979-03-01), Sprangle et al.
patent: 4224567 (1980-09-01), Granatstein et al.

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