Title:
BASE STATION ANTENNA AND HIGH-FREQUENCY RADIATION UNIT THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/232820
Kind Code:
A1
Abstract:
The present application provides a base station antenna and a high-frequency radiation unit therefor. The high-frequency radiation unit comprises a feeding balun, a dielectric substrate provided on the top of the feeding balun, and two pairs of radiators that are polarized and orthogonal and can be fed by the feeding balun; each radiator comprises a radiation piece, and a decoupling circuit electrically connected to the radiation piece and used for reducing low-frequency parasitic radiation; the radiation piece and the decoupling circuit are respectively disposed on the two opposite surfaces of the dielectric substrate. The high-frequency radiation unit provided in the present application is provided with decoupling circuits on the dielectric substrate, the decoupling circuits can effectively suppress a coupling signal of a low-frequency radiation unit adjacent to the high-frequency radiation unit and reduce parasitic radiation, thereby reducing the distance between the high- and low-frequency radiation units while ensuring good low-frequency electrical performance, and miniaturizing antennas. Secondly, the decoupling circuits and the radiation pieces are respectively disposed on the opposite surfaces of the dielectric substrate, and thus, the structure is simple and compact and it is beneficial to cost control.
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Inventors:
ZHENG ZHILUN (CN)
JIA FEIFEI (CN)
LIU LIANG (CN)
YU XINGYANG (CN)
JIA FEIFEI (CN)
LIU LIANG (CN)
YU XINGYANG (CN)
Application Number:
PCT/CN2020/141557
Publication Date:
November 25, 2021
Filing Date:
December 30, 2020
Export Citation:
Assignee:
COMBA TELECOM TECH GUANGZHOU LIMITED (CN)
International Classes:
H01Q1/38; H01Q1/36; H01Q1/52
Foreign References:
| CN206893796U | 2018-01-16 | |||
| CN105960737A | 2016-09-21 | |||
| CN108539383A | 2018-09-14 | |||
| CN105896071A | 2016-08-24 | |||
| US20180191075A1 | 2018-07-05 | |||
| CN105406188A | 2016-03-16 |
Attorney, Agent or Firm:
LIFANG & PARTNERS (CN)
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