Title:
DIELECTRIC FILTER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2008236562
Kind Code:
A
Abstract:
To provide a dielectric filter in which the quantity of rebounding of an attenuation amount is controlled by adjusting the low-frequency side polar position of a pass band.
The vicinity of the open end side of an outer conductor film, formed on the required outer circumferential surface of a dielectric block constituting a dielectric filter, is removed into a frame shape, thereby the outer conductor film forming an island-shaped electrode insulated from the outer conductor film. Both the terminal portions of the island-shaped electrode are cut, to widen the interval from the outer conductor film. When the island-shaped electrode forms a rectangular shape, characteristics adjustment that will not affect the basic pass band can be performed.
Inventors:
TAKI HIDEAKI
MURAKAMI KATSUHISA
SUZUKI HIDESHI
MURAKAMI KATSUHISA
SUZUKI HIDESHI
Application Number:
JP2007075689A
Publication Date:
October 02, 2008
Filing Date:
March 23, 2007
Export Citation:
Assignee:
NGK SPARK PLUG CO
International Classes:
H01P1/205; H01P11/00