BASE STATION ANTENNA RADIATOR HAVING FUNCTION FOR SUPPRESSING UNWANTED RESONANCES

Title:

BASE STATION ANTENNA RADIATOR HAVING FUNCTION FOR SUPPRESSING UNWANTED RESONANCES

Document Type and Number:

WIPO Patent Application WO/2020/231077

Kind Code:

A1

Abstract:

Provided is a base station antenna radiator having a function for suppressing unwanted resonances. The disclosed base station antenna radiator comprises: a first balun substrate which is placed so as to be perpendicular to a reflection plate, has formed on the upper surface thereof a feed line, a first C-coupling member spaced apart from the feed line, and a first inductive filter line connected to the first C-coupling member and having a narrower width than that of the first C-coupling member, and has formed on the lower surface thereof a third C-coupling member facing the first C-coupling member, and a third inductive filter line electrically connected to the first inductive filter line via a first via hole and connected to the third C-coupling member; a second balun substrate which is orthogonally coupled to the first balun substrate, is placed so as to be perpendicular to the reflection plate, and has a metal pattern formed thereon which is substantially the same as the metal pattern of the first balun substrate; and a radiation substrate which is disposed on the first balun substrate and the second balun substrate so as to be parallel with the reflection plate, and has at least one radiation patch formed on the upper surface thereof, wherein a terminal end of the first C-coupling member is electrically connected to the radiation patch, and a terminal end of the third C-coupling member is electrically connected to the reflection plate or an element having ground potential. The disclosed radiator has a merit of being capable of suppressing unwanted resonances in the base station antenna which is provided with both a low-frequency radiator and a high-frequency radiator.

Inventors:

ENKHBAYAR BAYANMUNKH (KR)
KIM HO-YONG (KR)
KWAK EUN HYUK (KR)
TAE JAE HOON (KR)

Application Number:

PCT/KR2020/006013

Publication Date:

November 19, 2020

Filing Date:

May 07, 2020

Export Citation:

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Assignee:

ACE TECH CORP (KR)

International Classes:

H01Q1/24; H01Q1/46; H01Q9/04; H01Q15/14

Foreign References:

JP2013026707A	2013-02-04
KR20170027678A	2017-03-10
KR20150051718A	2015-05-13
KR20100073946A	2010-07-01
KR20140007934A	2014-01-20
KR2020006013W	2020-05-07
KR20190054729A	2019-05-22

Other References: