Title:
CERAMIC MATERIALS AND PREPARATION METHOD THEREFOR, RESONATOR, FILTER AND RADIO FREQUENCY REMOTE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/113218
Kind Code:
A1
Abstract:
Provided in the present invention are a Ba2Ti9O20-based microwave dielectric ceramic material and a preparation method therefor, a resonator, a filter, and a radio frequency remote device, the preparation method for the dielectric ceramic material comprising the steps of: preparing a mixture comprising at least a Ba2Ti9O20-based ceramic powder and an organic binder; injection-molding the mixture to obtain a green body; degreasing and thermally degreasing the green body by using a non-polar solvent extraction method; and sintering the thermally degreased green body to obtain a Ba2Ti9O20-based microwave dielectric ceramic. In the preparation method, Ba2Ti9O20-based dielectric ceramic is injection-molded, resulting in a medium ceramic material with even distribution of density and size as well as a high degree of size precision after sintering. Furthermore, the material cost is low, and the preparation process is simple. Compared with resonator prepared by dry pressing, the ceramic material features a high quality factor (Q×f value) and stable performance.
Inventors:
ZHUANG HOURONG (CN)
LU ZHENGWU (CN)
LU ZHENGWU (CN)
Application Number:
PCT/CN2015/099947
Publication Date:
July 06, 2017
Filing Date:
December 30, 2015
Export Citation:
Assignee:
SHENZHEN TATFOOK TECHNOLOGY CO (CN)
International Classes:
C04B35/462; B28B3/20
Domestic Patent References:
| WO2001084662A1 | 2001-11-08 | |||
| WO2008066282A1 | 2008-06-05 |
Foreign References:
| CN101643360A | 2010-02-10 | |||
| CN103151584A | 2013-06-12 | |||
| CN101618568A | 2010-01-06 |
Other References:
LIN, WENYI ET AL.: "Microwave Properties ot Ba2Ti19O20 Doped with Zirconium and Tin Oxides", JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 82, 31 May 1999 (1999-05-31)
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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