公开(公告)号：US20210305722A1

公开(公告)日：2021-09-30

申请号：US17265538

申请日：2020-03-11

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Xiuyin ZHANG ,  Chaofeng DING ,  Yiyang LIU ,  Yunfei CAO ,  Quan XUE

IPC: H01Q21/26 ,  H01Q1/24 ,  H01Q1/48

Abstract: The invention discloses a broadband dual-polarization filtering base station antenna unit, a base station antenna array and a communication device, the antenna unit comprising four dipole arms, four parasitic branches and a feed structure, wherein two of the dipole arms are arranged oppositely, the other two dipoles are also arranged oppositely, the four dipole arms correspond to the four parasitic branches respectively, each dipole arm is coupled to a corresponding parasitic branch, the feed structure is connected with the four dipole arms; the antenna array comprising at least two antenna units described above; the communication device comprising the antenna unit described above, or comprising the antenna array described above. Not only the radiation performance of the present invention may achieve high roll-off filtering characteristics and high polarization isolation, but also to a great extent ensuring that no introduction of additional insertion loss and occupied area caused by redundant structures, and the bandwidth may be expanded, the height reduced, and a stable pattern in a wide frequency band is achieved.

公开(公告)号：US20220359994A1

公开(公告)日：2022-11-10

申请号：US17754291

申请日：2020-09-30

Applicant: South China University of Technology

Inventor： Xiuyin ZHANG ,  Shengjie YANG ,  Yiyang LIU ,  Yunfei CAO

IPC: H01Q21/06 ,  H01Q5/48 ,  H01Q21/26

Abstract: Disclosed are a base station, and a broadband dual-polarized filtering magneto-electric dipole antenna and a radiation unit thereof. A radiation structure includes two dipoles with a polarization direction orthogonal to each other. Each dipole includes two radiators arranged opposite to each other. A balun structure includes four balun assemblies, each balun assembly includes two balun grounds arranged opposite to each other at an interval, and a feeder line and an open-stub arranged opposite to each other at an interval and electrically connected to each other. One balun ground is electrically connected to one radiator, the other balun ground is electrically connected to the other adjacent radiator. The feeder line and one balun ground are arranged opposite to each other at an interval. The open-stub and the other balun ground are arranged opposite to each other at an interval. The balun grounds are arranged between the feeder line and the open-stub.