Coaxial cavity radio frequency tuning circuit having a toroidal-

Details Coaxial cavity radio frequency tuning circuit having a toroidal- Coaxial cavity radio frequency tuning circuit having a toroidal-

1976-02-25

1977-08-02

Gensler, Paul L.

Tuners

With resonant line elements

With lumped capacitor in tuned circuit

325171, 331 97, 333 82B, 334 65, 361287, H03J 300

Patent

active

040399826

ABSTRACT:
A tuning circuit having a coaxial cavity with a movable toroidal section to effect inductive tuning. The outer conductor is tapered to effect capacitive tuning by movement of the toroidal section axially within the cavity due to varying of the width of the annular space between the outer conductor and the toroidal section.

REFERENCES:
patent: 1970952 (1934-08-01), Conklin
patent: 2248227 (1941-07-01), Gantet
patent: 2435442 (1948-02-01), Gurewitsch
patent: 2666185 (1954-01-01), Hulstede et al.
patent: 2730623 (1956-01-01), Emurian et al.
patent: 2774044 (1956-12-01), Silvey et al.
patent: 2929033 (1960-03-01), Ellis
patent: 3413577 (1968-11-01), Massano
patent: 3448412 (1969-06-01), Johnson
patent: 3621463 (1971-11-01), Olson, Jr.

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