Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1982-06-12
1986-01-28
Moore, David K.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 4, 315 543, 315 551, 315 36, 315 393, 333230, H01J 2538, H01J 2534
Patent
active
045674019
ABSTRACT:
A wide-band distributed coupler for coupling rf energy from an input waveguide into a tapered interaction waveguide in a traveling-wave amplifier comprising a plurality of channel filters connecting between the input and interaction waveguides, with each filter coupled to the interaction waveguide at the appropriate cross-sectional position along its tapered length where the interaction waveguide cutoff frequency approximately matches the wave frequency propagated by the filter. Each filter comprises, in one embodiment, a main coaxial cavity tuned to a distinct center frequency, a first simple isolation cavity for coupling rf energy between the input waveguide and the main cavity, and at least one second simple isolation cavity for coupling energy between the main cavity and the tapered interaction waveguide. This coupler is compatible both in bandwidth and geometry with the tapered interaction waveguide.
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Barnett Larry R.
Chu Kwo R.
Granatstein Victor L.
Lau Yue-Ying
Beers Robert F.
DeLuca Vincent
Ellis William T.
Moore David K.
The United States of America as represented by the Secretary of
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