Microwave resonant circuit and tunable microwave filter...

Details Microwave resonant circuit and tunable microwave filter... Microwave resonant circuit and tunable microwave filter...

H - Electricity

01

P

H01P 1/217 (2006.01)

Patent

CA 2457009

The invention concerns a microwave resonant circuit and a tunable microwave filter using said resonant circuit. The resonant circuit comprises at least a resonant microwave strip element, the resonant microwave strip element including at a conductive strip (1) and a ground plane (4). The resonant circuit comprises at least a composite element (3) consisting of alternating ferromagnetic layers and insulating layers placed between the conductive strip and the ground plane. The invention is generally applicable to any transmission/reception device using a frequency tuning in the microwave domain such as, for example, multiband mobile telephones.

L'invention concerne un circuit résonant hyperfréquence et un filtre hyperfréquence accordable utilisant le circuit résonant. Le circuit résonant comprend au moins un élément de ligne microbande résonant, l'élément de ligne microbande résonant comprenant un ruban conducteur (1) et un plan de masse (4). Le circuit résonant comprend au moins un élément composite (3) constitué d'une alternance de couches ferromagnétiques et de couches isolantes placé entre le ruban conducteur et le plan de masse. L'invention s'applique, de façon générale, à tout dispositif d'émission/réception qui met en oeuvre un accord de fréquence dans le domaine des hyperfréquences tel que, par exemple, les téléphones mobiles multi-bandes.

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