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公开(公告)号：US11296418B2
公开(公告)日：2022-04-05
申请号：US17046315
申请日：2019-10-25
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xiuyin Zhang , Shengjie Yang , Zhijie Zhang , Yongmei Pan , Yunfei Cao , Yao Zhang
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11710908B2
公开(公告)日：2023-07-25
申请号：US17557086
申请日：2021-12-21
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Yunfei Cao , Xiuyin Zhang , Quan Xue
CPC classification number: H01Q21/065 , H01Q1/523 , H01Q5/392 , H01Q5/45 , H01Q9/0414 , H01Q13/16 , H01Q15/0013 , H01Q15/0026 , H01Q15/0086
Abstract: 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.
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公开(公告)号：US11450951B2
公开(公告)日：2022-09-20
申请号：US17262759
申请日：2020-03-11
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xiuyin Zhang , Wanli Zhan , Jinxu Xu , Yunfei Cao
Abstract: 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.
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公开(公告)号：US20210336351A1
公开(公告)日：2021-10-28
申请号：US16491400
申请日：2018-10-18
Applicant: South China University of Technology
Inventor： Xiuyin Zhang , Yufeng Wu , Yunfei Cao , Wen Duan , Yao Zhang
Abstract: 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.
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公开(公告)号：US12074374B2
公开(公告)日：2024-08-27
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
CPC classification number: H01Q21/062 , 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.
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公开(公告)号：US11296425B2
公开(公告)日：2022-04-05
申请号：US16491400
申请日：2018-10-18
Applicant: South China University of Technology
Inventor： Xiuyin Zhang , Yufeng Wu , Yunfei Cao , Wen Duan , Yao Zhang
Abstract: 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.
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