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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 (3rd Industrial Area of Shajing Industrial Company, Haoxiang Road Shajing Town, Bao’an Distric, Shenzhen Guangdong 4, 518104, CN)
LU, Zhengwu (3rd Industrial Area of Shajing Industrial Company, Haoxiang Road Shajing Town, Bao’an Distric, Shenzhen Guangdong 4, 518104, CN)
Application Number:
CN2015/099947
Publication Date:
July 06, 2017
Filing Date:
December 30, 2015
Export Citation:
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Assignee:
SHENZHEN TATFOOK TECHNOLOGY CO., LTD (3rd Industrial Area of Shajing Industrial Company, Haoxiang Road Shajing Town, Bao'an Distric, Shenzhen Guangdong 4, 518104, CN)
International Classes:
C04B35/462; B28B3/20
Domestic Patent References:
WO2001084662A12001-11-08
WO2008066282A12008-06-05
Foreign References:
CN101643360A2010-02-10
CN103151584A2013-06-12
CN101618568A2010-01-06
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. (A806, Zhongdi Building China University of Geosciences Base, No.8 Yuexing 3rd Road, High-Tech Industrial Estate Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
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