Dual-mode filters using dielectric resonators with apertures

Details Dual-mode filters using dielectric resonators with apertures Dual-mode filters using dielectric resonators with apertures

H - Electricity

03

H

H03H 9/24 (2006.01) H01P 1/208 (2006.01) H01P 7/10 (2006.01)

Patent

CA 2048404

ABSTRACT A dual-mode filter has a dielectric resonator in each cavity, with each resonator containing one or more apertures. The aperture or apertures are located to shift a resonance frequency of a spurious mode to a higher frequency range distance from a principal mode. The principal mode can be an HEH11 mode and the spurious mode can be an HEE11 mode or vice-versa. The dielectric resonators can be a solid block or two or more discs that are laminated to one another. Previous dual-mode filters cannot attain the results required for current satellite systems.

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