Title:
DIELECTRIC CERAMIC AND DIELECTRIC RESONATOR USING THE SAME
Document Type and Number:
Japanese Patent JP3830342
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a dielectric ceramic with high εr and high Q value in high frequency region, and small temperature coefficient τf at resonance frequency.
SOLUTION: The dielectric ceramic is composed of oxides containing at least rare an earth element (Ln), Al, M (M is Ca and/or Sr) and Ti as metallic elements, and at least a part of the Al exists as crystal phases of β-Al2O3 and/or θ-Al2O3.
Inventors:
Yoshihiro Okawa
Application Number:
JP2000282287A
Publication Date:
October 04, 2006
Filing Date:
September 18, 2000
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
C04B35/46; H01B3/12; H01P7/10; (IPC1-7): C04B35/46; H01B3/12; H01P7/10
Domestic Patent References:
| JP11106255A |
Foreign References:
| SU590299A1 |