Title:
Y-TYPE HEXAGONAL FERRITE, FABRICATION METHOD THEREOF, AND ANTENNA APPARATUS USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/014001
Kind Code:
A2
Abstract:
A method of making Y-type hexagonal ferrite and an antenna using the same are provided. Y-type hexagonal ferrite includes a base ferrite composed of iron oxide, barium carbonate and cobalt oxide, and silicate glass ranging from 0.5 to 5 weight percent added to 100 weight percent of base ferrite. An antenna apparatus includes a magnetic carrier and an antenna pattern formed thereon. The magnetic carrier is formed of such Y-type hexagonal ferrite, and the antenna pattern resonates in a specific frequency band when electric power is supplied. To fabricate the Y-type hexagonal ferrite, a calcination process is performed in which iron oxide, barium carbonate and cobalt oxide are combined into base ferrite at a given calcination temperature after being mixed. A sintering process is performed to sinter the base ferrite and the silicate glass at a given sintering temperature which is lower than the calcination temperature after adding the silicate glass to the base ferrite.
Inventors:
HAN YOUNG HO (KR)
LEE JOONG HEE (KR)
PARK IL JEONG (KR)
LEE JOONG HEE (KR)
PARK IL JEONG (KR)
Application Number:
PCT/KR2010/004950
Publication Date:
February 03, 2011
Filing Date:
July 28, 2010
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
UNIV SUNGKYUNKWAN FOUND (KR)
HAN YOUNG HO (KR)
LEE JOONG HEE (KR)
PARK IL JEONG (KR)
UNIV SUNGKYUNKWAN FOUND (KR)
HAN YOUNG HO (KR)
LEE JOONG HEE (KR)
PARK IL JEONG (KR)
International Classes:
H01Q7/08; H01F41/02
Foreign References:
| KR20070107654A | 2007-11-07 | |||
| KR20020079484A | 2002-10-19 | |||
| KR20050050681A | 2005-05-31 | |||
| KR20080082466A | 2008-09-11 |
Attorney, Agent or Firm:
YOON, Dong Yol (3rd Fl Ace Highend Tower-5,505-18 Gasan-dong, Geumcheon-gu, Seoul 153-803, KR)
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