Title:
DIELECTRIC RESONATOR DEVICE, TRANSMITTER-RECEIVER AND COMMUNICATION EQUIPMENT
Document Type and Number:
Japanese Patent JP3409729
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enhance a non-load Q of a resonator for reducing an insertion loss in the case of constituting a band-pass filter, e.g. to reduce the variation of a filter characteristic with respect to the variation of a structure size such as a resonator length L, a resonator interval (g), to improve the adjusting freedom of a resonance frequency so as to improve productivity, while providing the characteristics of a dielectric resonator device of a planar circuit type suited to miniaturization.
SOLUTION: Electrodes 2 and 3 with mutually oppositely facing opening parts 4a, 5a, 4b, 5b, 4c and 5c are provided on each of both main surfaces of a dielectric board 1 and these electrode opening parts are operated as the dielectric resonator of a rectangular slot mode. At this time, the length L is made longer than a half-wavelength in a using resonance frequency to cause by a high-order mode to be resonated.
Inventors:
Shigeyuki Mikami
Toshiro Hiratsuka
Tomiya Sonoda
Toshiro Hiratsuka
Tomiya Sonoda
Application Number:
JP6221799A
Publication Date:
May 26, 2003
Filing Date:
March 09, 1999
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01P1/20; H01P1/203; H01P1/213; H01P7/10; (IPC1-7): H01P1/20; H01P1/213; H01P7/10
Domestic Patent References:
| JP114108A | ||||
| JP1093312A |
Attorney, Agent or Firm:
Hisao Komori
Previous Patent: METHOD FOR TREATING ORGANIC WASTE
Next Patent: SYSTEM AND METHOD FOR MONITORING COMMUNICATION MESSAGE
Next Patent: SYSTEM AND METHOD FOR MONITORING COMMUNICATION MESSAGE