Title:
DIELECTRIC FILTER
Document Type and Number:
WIPO Patent Application WO/2018/038407
Kind Code:
A1
Abstract:
A dielectric filter is disclosed. The dielectric filter of the present invention comprises: a dielectric block that comprises an upper surface, a lower surface facing the upper surface, and a side surface connecting the upper surface and the lower surface; one or more resonance holes that penetrate through the dielectric block between the upper surface and the lower surface; one or more transmission line holes that penetrate through the dielectric block between the upper surface and the lower surface and that are located adjacent to the resonance holes; an external conductor that is continuously formed with the upper surface, the lower surface and the side surface; input/output electrodes that are formed on the lower surface and that are separated from the external conductor; an internal resonance hole conductor that is formed inside the resonance hole and that is electrically connected to the external conductor at the lower surface; an internal transmission line hole conductor that is formed inside the transmission line hole and that is electrically connected to the input/output electrode at the lower surface; a resonance hole conductor pattern that is formed on the upper surface and that is electrically connected to the internal resonance hole conductor at the upper surface; and a transmission line hole conductor pattern that is formed on the upper surface and that is electrically connected to the internal transmission line hole conductor at the upper surface, wherein the resonance hole conductor pattern, the transmission line hole conductor pattern and the external conductor are separated from one another by a non-conductor region of an external surface of the dielectric block.
Inventors:
YU JI MAN (KR)
KIM DUCK HAN (KR)
JANG DAE HOON (KR)
KIM DUCK HAN (KR)
JANG DAE HOON (KR)
Application Number:
PCT/KR2017/008034
Publication Date:
March 01, 2018
Filing Date:
July 26, 2017
Export Citation:
Assignee:
PARTRON CO LTD (KR)
International Classes:
H01P1/208; H01P1/205; H01P7/10
Foreign References:
| US6133808A | 2000-10-17 | |||
| US20150372364A1 | 2015-12-24 | |||
| US5905420A | 1999-05-18 | |||
| US20040066255A1 | 2004-04-08 | |||
| US20030201849A1 | 2003-10-30 |
Attorney, Agent or Firm:
SHIN, Yong Hyun et al. (KR)
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