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Title:
BMW-BASED HIGH FREQUENCY DIELECTRIC CERAMIC MATERIAL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/182180
Kind Code:
A1
Abstract:
The present invention relates to a dielectric ceramic material for a resonator, a filter, and an oscillator used in a wireless communication system. In particular, provided is a Ba(Mg0.5W0.5)O3-based high frequency dielectric ceramic material having an appropriate dielectric constant and a high quality factor in a high frequency band, and a method for producing the same. For this purpose, in the present invention, Ba(Mg0.5W0.5)O3 was selected as a material with good high frequency dielectric properties wherein barium (Ba) is partly substituted with an alkali metal or an alkaline earth metal element, and to compensate for the same, a +3-valent metal element is quantitatively added to the magnesium (Mg) site. Thus, a high frequency dielectric ceramic material composition with a high quality factor and a stable temperature characteristic is produced. A +5-valent metal element may be quantitatively added to tungsten (W) as needed. According to the present invention as described above, a high frequency dielectric ceramic material is expected to have the effects of having a more suitable dielectric constant, excellent temperature characteristics, and a high quality factor.

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Inventors:
YOON SANG OK (KR)
KIM SHIN (KR)
HONG CHANG BAE (KR)
Application Number:
PCT/KR2018/002315
Publication Date:
October 04, 2018
Filing Date:
February 26, 2018
Export Citation:
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Assignee:
GANGNEUNG WONJU NAT UNIV IND ACAD COOP GROUP (KR)
International Classes:
H01B3/12; H01B3/10
Foreign References:
US20050122639A12005-06-09
CN102765938A2012-11-07
EP0881199A11998-12-02
US5834405A1998-11-10
JP2002087881A2002-03-27
Attorney, Agent or Firm:
SU INTELLECTUAL PROPERTY (KR)
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