Tuned resonant circuit utilizing a ferromagnetically coupled int

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

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333 241, 333205, 333222, H01P 1203, H01P 1218

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active

045217530

ABSTRACT:
A magnetically tuned resonant circuit for selectively coupling radio frequency (r.f.) energy between an input coupling circuit and an output coupling circuit, dielectrically spaced from the input coupling circuit, through a resonant body disposed therebetween. Each coupling circuit includes a center strip conductor portion dielectrically spaced from a ground plane conductor. Such center strip conductor and ground plane conductor of each coupling circuit are formed on a common surface of a corresponding dielectric. The center strip conductor portions are orthogonally orientated, and have first end portions which are coaxially aligned and terminated with the ground plane. The resonant body is dielectrically supported between each one of such first end portions of such center conductors.

REFERENCES:
patent: 3368169 (1968-02-01), Carter et al.
patent: 3546637 (1970-12-01), Wen
patent: 3560893 (1971-02-01), Wen
patent: 3621367 (1971-11-01), Rosen et al.
patent: 3648199 (1972-03-01), Buck et al.
patent: 3713210 (1973-01-01), Schellenberg
patent: 3740675 (1973-06-01), Moore et al.
patent: 3771075 (1973-11-01), Phelan
patent: 3838367 (1974-09-01), Bex
"Magnetically-Tunable Microwave Filters Using Single-Crystal Yttrium-Iron-Garnet Resonators" by Philip S. Carter.
IRE Transactions on Microwave Theory and Techniques, May 1961.

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