South China University of Technology

Yunfei Cao

Xiuyin Zhang

Shengjie Yang

Quan Xue

Yao Zhang

Jinxu Xu

Yongmei Pan

Wen Duan

Yufeng Wu

Wanli Zhan

Yihui Yao

Zhijie Zhang

Yiyang Liu

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.

Base station, and broadband dual-polarized filtering magneto-electric dipole antenna and radiation unit thereof

The invention discloses shared-aperture dual-band dual-polarized antenna array and communication equipment. The antenna array comprises a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, and a fifth dielectric substrate. The first dielectric substrate, the second dielectric substrate, and the third dielectric substrate constitute a dielectric substrate group. The dielectric substrate group is provided with a low-frequency antenna element and four high-frequency antenna elements. The low-frequency antenna element is loaded with a filtering structure. The low-frequency antenna element and the high-frequency antenna element are fed by coaxial lines. The fourth dielectric substrate and the fifth dielectric substrate form a dual-function metasurface. When the dual-function metasurface is used as an artificial magnetic conductor reflector, the radiation of the low-frequency antenna element is enhanced in a low profile, and when used as a frequency selective surface, the electromagnetic scattering of the low-frequency antenna element in the high-frequency band is suppressed. Compared with the existing solutions, the present invention is more compact, and maintains high cross-band isolation and stable radiation patterns in dual bands.

Shared-aperture dual-band dual-polarized antenna array and communication equipment

The invention discloses a feed network for an antenna array with integrated filtering, power splitting and phase shifting, comprising upper and lower metal floors, metal connecting posts, coaxial feed terminals, a suspended dielectric substrate, suspended strip lines and two phase-adjusting dielectric substrates; the upper and lower metal floors share a common ground through the metal connecting posts, the suspended strip lines are provided on the suspended dielectric substrate, the suspended dielectric substrate is positioned horizontally between the two phase-adjusting dielectric substrates, the two phase-adjusting dielectric substrates are positioned horizontally between the upper and lower metal floors; the suspended strip lines comprise a one-to-three filtering power splitting unit, two one-to-two unequal filtering power splitting units, two first phase-shifting lines and two second phase-shifting lines, the two phase-adjusting dielectric substrates cover the one-to-three filtering power splitting unit, part of the two first phase-shifting lines and the two second phase-shifting lines. The invention provides integrated design of the three functional circuits with filtering, power splitting and phase shifting to avoid cascading mismatch between different functional circuits in conventional designs.

Filtering, power-dividing and phase-shifting integrated antenna array feed network

A millimeter wave filtering antenna and a wireless communication device are disclosed. The millimeter wave filtering antenna includes a parasitic unit, a feeding unit and a feeding network. The parasitic unit includes at least one quadrilateral parasitic patch and at least one cross shaped parasitic patch, both of which are nested and combined with each other. The feeding unit includes a feeding patch, and the feeding patch is loaded with a short-circuit patch to form coupling. The feeding network feeds the feeding unit. The wireless communication device includes a millimeter wave filtering antenna according to the present disclosure. The radiation performance of the antenna can not only realize the filtering characteristics with high roll-off and high isolation, but also ensure that no additional insertion loss is introduced.

Millimeter wave filtering antenna and wireless communication device

A dual-polarized duplex antenna includes a top-layer dielectric substrate; a metal reflective ground plate below the top-layer dielectric substrate; vertically-placed duplex baluns for duplexing operation between the top-layer dielectric substrate and the metal reflective ground plate; and four dipole arms horizontally printed on an upper surface of the top-layer dielectric substrate. Each of the duplex balun includes a vertical dielectric substrate, a balun feedline printed on a front side of the vertical dielectric substrate, and a ground plane with a printed slot line printed on a reverse side of the vertical dielectric substrate. The balun feedline includes a low-pass filter, a high-pass filter and a microstrip feeding structure serving as a connection. The low-pass filter and the high-pass filter are located on two sides of the slot line, and are connected together by the microstrip feeding structure.

Dual-polarized duplex antenna and dual-band base station antenna array composed thereof

The invention discloses a dual-polarized filtering magneto-electric dipole antenna, which comprises an upper dielectric substrate and a lower dielectric substrate. The upper surface of the upper dielectric substrate is printed with a radiator structure, and the lower dielectric substrate is printed with a slot coupling feed network; the radiator structure comprises four parasitic patches loaded with symmetrical slots. The parasitic patches are loaded with short-circuit probes, and the slot coupling feed network comprises two orthogonal sets of Y-shaped feeders and cross-shaped slots, and the cross-shaped slots are printed on a metal floor. The new parasitic slot structures on the radiator structure increases the bandwidth while introducing a high roll-off band edge filtering effect, and combined with the slot coupling feed network with filtering function to achieve good band-pass filtering characteristics and hardly introduce additional insertion loss.

Growing community of inventors

Guangzhou, China

Yunfei Cao