High-frequency filter

Details High-frequency filter High-frequency filter

H - Electricity

03

H

H03H 9/46 (2006.01) H01P 1/205 (2006.01)

Patent

CA 2229148

A coaxial resonator filter (1', 50, 50', 50") comprises a dielectric boardlike element (11, 51, 51 ") and on its surface at least one electrically conductive element (17, 19, 20, 21, 52) to provide an electromagnetic coupling to at least one coaxial resonator (3, 53). The dielectric boardlike element may be the same as the filter's base plate, in which case its outer surface comprises a continuous earth plane (55), or it may be parallel to a separate electrically conductive base plate (56). Link (17), tap (19) and capacitive (20) coupling elements can be realised on the surface of the dielectric board.

L'invention est un filtre à résonateur coaxial (1 , 50, 50 , 50Õ) comportant une carte diélectrique (11, 51, 51Õ) et au moins un élément électriquement conducteur (17, 19, 20, 21, 52) sur sa surface pour établir un couplage électromagnétique avec un résonateur coaxial (3, 53) au moins. La carte diélectrique peut être constituée par la plaque de support du filtre; dans ce cas, sa surface externe porte un plan de terre continu (55), ou elle peut être parallèle à une plaque de support électriquement conductrice distincte (56). Un conducteur (17), une prise (19) et des éléments de couplage capacitif (20) peuvent être construits sur la surface de la carte diélectrique.

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