Title:
DIELECTRIC FILTER, DIELECTRIC DUPLEXER AND COMMUNICATION APPARATUS
Document Type and Number:
Japanese Patent JP2001196806
Kind Code:
A
Abstract:
To provide a dielectric filter, a dielectric duplexer and a communication apparatus using them, which improve the degree of freedom in design and obtain stable characteristic.
Inner conductor holes 2a and 2b whose inner surfaces are covered with inner conductors are bored inside of a dielectric block 1, gap parts g are formed between input/output electrodes 5a, 5b and an outer conductor 4, the electrodes 5a and 5b are formed on the outer surface of the block 1 continuously from a bottom surface (mounting surface) to a side surface, and filter characteristic is fixed by the width or the depth of the gap parts on the side surfaces of the dielectric block.
Inventors:
TODA ATSUSHI
HIROSHIMA MOTOHARU
KATO HIDEYUKI
HIROSHIMA MOTOHARU
KATO HIDEYUKI
Application Number:
JP2000007450A
Publication Date:
July 19, 2001
Filing Date:
January 17, 2000
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
H01P1/205; H01P1/213; (IPC1-7): H01P1/205; H01P1/213
Attorney, Agent or Firm:
Hisao Komori