Title:
DIELECTRIC RESONATOR DEVICE, DIELECTRIC FILTER, DUPLEXER AND HIGH FREQUENCY COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/079857
Kind Code:
A1
Abstract:
The front surface (1A) and back surface (1B) of a dielectric substrate (1) are formed with electrodes (2, 3), and these electrodes (2, 3) are formed with sectorial openings (4A, 4B) at mutually opposed positions to form a resonator (4). Thereby, with the resonator (4), it is possible to set the resonance frequency by using two parameters, the radii and central angles of the sectorial openings (4A, 4B), and to increase the design freedom for the resonator (4).
Inventors:
HIROSE KEIICHI (JP)
MIKAMI SHIGEYUKI (JP)
SASAKI YUTAKA (JP)
HIRATSUKA TOSHIRO (JP)
MIKAMI SHIGEYUKI (JP)
SASAKI YUTAKA (JP)
HIRATSUKA TOSHIRO (JP)
Application Number:
PCT/JP2004/002469
Publication Date:
September 16, 2004
Filing Date:
March 01, 2004
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
HIROSE KEIICHI (JP)
MIKAMI SHIGEYUKI (JP)
SASAKI YUTAKA (JP)
HIRATSUKA TOSHIRO (JP)
HIROSE KEIICHI (JP)
MIKAMI SHIGEYUKI (JP)
SASAKI YUTAKA (JP)
HIRATSUKA TOSHIRO (JP)
International Classes:
H01P1/20; H01P7/10; (IPC1-7): H01P7/10; H01P1/20
Foreign References:
| JP2002124808A | 2002-04-26 | |||
| US4423397A | 1983-12-27 | |||
| JP2002100911A | 2002-04-05 |
Attorney, Agent or Firm:
Hirose, Kazuhiko (1-2 Nishishinjuku 3-chom, Shinjuku-ku Tokyo, JP)
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