LAMINATED DIELECTRIC FILTER
Document Type and Number:
Japanese Patent JP3193101
PURPOSE: To provide the laminated type dielectric filter by which a center frequency can be adjusted extending over a wide range, and also, a minute adjustment can be executed easily.
CONSTITUTION: Resonance elements 31-33 for constituting a laminated dielectric filter, in a state that one end of a strip line is connected electrically to a ground electrode, and electrodes 41-43, 61-63, 71-73, and 81-83 in which one end is connected to the ground electrode 2, which are opposed to opening end parts of each resonance element, respectively through dielectric layers 11, 12, 13 and 14 respectively, and also, in which electric connection to the ground electrode 2 is cut off in accordance with the adjustment quantity of a resonance frequency in order to adjust the resonance frequency of the opposed resonance elements are provided in the dielectric, and the connection of the electrode and the ground electrode 2 is cut off in order to adjust to a target center frequency.
May 25, 2001
March 19, 1992
NGK INSULATORS LTD
H01P1/203; H01P1/205; H01P5/08; H01P11/00; H01P1/20; H01P5/08; H01P11/00; (IPC1-7): H01P1/203; H01P1/205