Double-tuned output circuit for high power devices using coaxial

Details Double-tuned output circuit for high power devices using coaxial Double-tuned output circuit for high power devices using coaxial

1977-09-19

1980-01-15

Gensler, Paul L.

Amplifiers

With distributed parameter-type coupling means

Waveguide, cavity, or concentric line resonator

333 33, 333226, 333230, H03F 360, H01P 704

Patent

active

041841239

ABSTRACT:
Coaxial, one-quarter wavelength resonant primary and secondary resonators are employed in conjunction with a tetrode tube to provide, for example, 55 Kw (kilowatts) of output power for VHF, high-band television broadcasting. Coupling between the two resonators is accomplished by connecting an inductance between the center conductors of the resonators. The effective inductance of this connection is varied (and thus the coupling of the resonator circuits is also varied) by the addition of a variable capacitor in series with the inductive connection.

REFERENCES:
patent: 2220922 (1940-11-01), Trevor
patent: 2917712 (1959-12-01), Smith et al.
patent: 3159803 (1964-12-01), Czubiak et al.
patent: 3719909 (1973-03-01), Hanft

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