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公开(公告)号：US11095041B2
公开(公告)日：2021-08-17
申请号：US16289164
申请日：2019-02-28
发明人： Yazi Cao , Steve Hunt , Tong Li
摘要： A collinear antenna assembly and a series-fed omnidirectional collinear antenna array are provided. The collinear antenna assembly includes a plurality of phase delayers connected in series, and an end portion of each phase delayer is connected to an antenna radiating unit; the phase delayer includes a circuit wire printed on a dielectric plate, two ends of the circuit wire are connected to the antenna radiating unit, a wire length, a wire width and a wire spacing of the circuit wire are set based on preset wiring rules, the wire lengths, the wire widths and the wire spacing of the circuit wires of the phase delayers set based on different preset wiring rules are different, so that a phase and an amplitude fed to each antenna radiating unit are accurately controlled.
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2.发明公开公开(公告)号：US20240339748A1
公开(公告)日：2024-10-10
申请号：US18130842
申请日：2023-04-04
摘要： The present invention relates to the field of wireless telecommunication and discloses a compact, high-performance, dual-polarized, quasi-omnidirectional Multiple-Input Multiple-Output (MIMO) antenna system for small cell wireless communications. It develops a flexible platform to realize different arrangements of antenna modules for different applications for 3G, 4G, and 5G wireless systems. It includes multi-band dual-polarized antenna arrays operating at 696 MHz-960 MHz, 1695 MHz-2700 MHz, 3300 MHz-4200 MHZ, 5150 MHz-5925 MHz, high gain antenna array modules, feeding networks, power dividers, reflectors, and a radome. The invention adopts a dual-polarized MIMO antenna structure with multiple radiating antenna arrays with high isolation between radiating elements to achieve compact size, good standing wave ratio, high gain, wide operating frequency range, quasi-omnidirectional antenna pattern, and spatial diversity with less interference. In addition, the antenna structure is fully customizable, highly reliable and durable, easy to manufacture, and easy to deploy in the field.
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公开(公告)号：US20240222864A1
公开(公告)日：2024-07-04
申请号：US18091266
申请日：2022-12-29
发明人： Xiufeng Shi , Yazi Cao , Tong Li
摘要： An antenna comprising the primary and secondary radiation structures and impedance-matching circuit are disposed in a collinear configuration with single port. The impedance-matching circuit can expand the antenna bandwidth in plural frequency bands with low VSWR. The transmission line between the RF connector and radiation structures are frictional wrapped by ferrite toroid cores, which improves the antenna in term of electrical stability. This also decreases the antenna sensitivity to the ground plane.
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公开(公告)号：US11342677B2
公开(公告)日：2022-05-24
申请号：US16362228
申请日：2019-03-22
发明人： Yazi Cao , Jan Koivunen , Tong Li
IPC分类号： H01Q21/10 , H01Q9/06 , H01Q5/15 , H01Q9/16 , H01Q21/20 , H01Q1/38 , H01Q9/28 , H01Q5/364 , H01Q9/26
摘要： The present invention provides a balanced dipole unit and a broadband omnidirectional collinear array antenna formed by the balanced dipole unit. Balanced dipole unit circuits in the balanced dipole unit are symmetrically distributed on two sides of a circuit carrier, and a feeder and a ground wire in the balanced dipole unit are also symmetrically distributed, so that the balanced dipole unit has a completely symmetrical structure. A principle of the symmetrical structure is the same as a differential design principle and a self-balancing principle in the circuit design, thereby reducing current coupling between the balanced dipole units and eliminating the need of using an additional choke circuit when a broadband omnidirectional collinear array antenna is formed by the balanced dipole unit.
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公开(公告)号：US12095172B2
公开(公告)日：2024-09-17
申请号：US18091266
申请日：2022-12-29
发明人： Xiufeng Shi , Yazi Cao , Tong Li
摘要： An antenna comprising the primary and secondary radiation structures and impedance-matching circuit are disposed in a collinear configuration with single port. The impedance-matching circuit can expand the antenna bandwidth in plural frequency bands with low VSWR. The transmission line between the RF connector and radiation structures are frictional wrapped by ferrite toroid cores, which improves the antenna in term of electrical stability. This also decreases the antenna sensitivity to the ground plane.
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公开(公告)号：US12046834B2
公开(公告)日：2024-07-23
申请号：US17334481
申请日：2021-05-28
摘要： An antenna for use in a distributed antenna system includes: (a) a feeding circuit on a first side of a first dielectric defining a planar edge perpendicular to the first side, a coplanar waveguide comprising a signal feed and a signal return coplanar with and interfittingly apart from the signal feed; (b) a radiator circuit on a second side of a second dielectric, a monopole radiator and a radiator return being copolanar and spaced apart from each other, the first dielectric capacitively coupling the signal feed to the monopole radiator; and (c) an edge connection along the planar edge for electrically connecting the signal return to the radiator return. A cover encloses the feeding circuit, including its impedance matching, in a water-resistant enclosure. The antenna ceiling-mounts indoors, is coated with a fire-resistant coating, and is operable at VHF (132-174 MHz), UHF (350-520 MHz), and 698-960 MHz.
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公开(公告)号：US20220311139A1
公开(公告)日：2022-09-29
申请号：US17334481
申请日：2021-05-28
摘要： An antenna for use in a distributed antenna system is provided. The antenna includes: (a) a feeding circuit on a first side of a first dielectric defining an edge perpendicular to the first side, a coplanar waveguide comprising a signal feed and a signal return coplanar with and interfittedly apart from the signal feed; (b) a radiator circuit on a second side of a second dielectric, a monopole radiator and a radiator return being copolanar and spaced apart from each other, the first dielectric capacitively coupling the signal feed to the monopole radiator; and (c) an edge connection along the edge for electrically connecting the signal return to the radiator return.
A cover encloses the feeding circuit, including its impedance matching, in a water-resistant enclosure. The antenna ceiling-mounts indoors, is coated with a fire-resistant coating, and is operable at VHF (132-174 MHz), UHF (350-520 MHz), and 698-960 MHz.
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