RF filters and multiplexers with resonator decouplers

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

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333134, 333206, H01P 1205

Patent

active

054283256

ABSTRACT:
An RF filter having a housing defining a cavity with plural elongated resonators and plural resonator decouplers adjacent each of plural pairs of the resonators in the housing. The decouplers are grounded adjacent each of their ends only to the housing to provide an enhanced resonator decoupling effect. The filter may instead comprise a dielectric block with resonator holes and resonator decoupler holes each appropriately metalized with the decoupler holes being grounded at each end at external metalized block surfaces.

REFERENCES:
patent: 3562677 (1971-02-01), Gunderson
patent: 4450421 (1984-05-01), Meguro et al.
patent: 4937533 (1990-06-01), Livingston
patent: 5023579 (1991-06-01), Bentivenga et al.
patent: 5208565 (1993-05-01), Sogo et al.

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