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公开(公告)号：US11942698B2
公开(公告)日：2024-03-26
申请号：US17685777
申请日：2022-03-03
发明人： Kwok Wa Leung , Peng Fei Hu , Yong Mei Pan , Shao Yong Zheng
摘要： A dual-band HP omnidirectional antenna includes an electrically small (ES) first omnidirectional loop antenna for a first band, and a second omnidirectional loop antenna for a second band. The first omnidirectional loop antenna and the second omnidirectional loop antenna are capable of operating independently in the first band and the second band. A loading effect of the second omnidirectional loop antenna adapted to suppress a higher-order mode of the first omnidirectional loop antenna.
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公开(公告)号：US11929563B2
公开(公告)日：2024-03-12
申请号：US17713280
申请日：2022-04-05
发明人： Kwok Wa Leung , Hauke Ingolf Kremer , Wai Ki Lee
CPC分类号： H01Q9/0485 , H01Q1/38 , H01Q9/045 , H01Q13/28 , H01Q15/10
摘要： A substrate-integrated dielectric resonator contains a substrate layer with a first dielectric constant, a plurality of dielectric vias, and a plurality of second vias. Each dielectric via includes a first via-hole extending through the substrate layer, and a dielectric material with a second dielectric constant contained within the first via-hole. Each second via has a second via-hole extending through the substrate layer and filled with gas. A dielectric resonator antenna containing a substrate-integrated dielectric resonator and a method of fabricating the same is also disclosed. By skillfully arranging second vias inside the DRA, the resonant frequencies of different modes can be controlled, and a wide impedance band-width with stable radiation performance can be achieved.
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公开(公告)号：US20230282982A1
公开(公告)日：2023-09-07
申请号：US17683609
申请日：2022-03-01
发明人： Kwok Wa Leung , Peng Fei Hu
CPC分类号： H01Q9/0485 , H01Q21/0006 , H01Q21/205 , H01Q1/38
摘要： A omnidirectional antenna includes a substrate; a dielectric resonator element arranged on the substrate; a feed circuit operably coupled with the dielectric resonator element and operable to facilitate operation of the omnidirectional antenna in a first frequency band; and a feed probe operably coupled with the dielectric resonator element and operable to facilitate operation of the omnidirectional antenna in a second frequency band different from the first frequency band.
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公开(公告)号：US11575203B1
公开(公告)日：2023-02-07
申请号：US17492688
申请日：2021-10-04
发明人： Kwok Wa Leung , Zhen-Xing Xia
摘要： The present invention provides a single-fed wideband circularly-polarized dielectric resonant antenna. The antenna includes a lower antenna portion configured as a twisted inverted-frustum having a twist angle θ between its top and bottom surfaces, wherein the twist angle θ is greater than zero degrees and less than 5 degrees. An upper antenna portion extends from the lower antenna portion top surface. The upper portion includes plural interleaved slabs of first and second dielectric materials having respective first and second dielectric constants, the interleaved slabs having a stepwise-varying height between adjacent slabs. The antenna may be mounted on a printed circuit substrate at a 45 degree angle to an excitation slot. The antenna may be compact and easily manufactured using 3-D printing techniques.
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公开(公告)号：US10923818B2
公开(公告)日：2021-02-16
申请号：US15711663
申请日：2017-09-21
发明人： Kwok Wa Leung , Li Ying Feng
摘要： Systems and methods which provide a hollow dielectric block dual-fed dual-frequency antenna configuration, such as may be utilized for wireless device communication in multiple RF bands, multi-frequency radar applications, etc., are described. Embodiments of a hollow dielectric block dual-fed dual-frequency antenna provide operation with respect to widely separated frequencies, such as to operate at frequencies in both a millimeter-wave band and a microwave band. A hollow dielectric block dual-fed dual-frequency antenna of embodiments of the invention may be fabricated from a single hollow dielectric block configured to integrate a dielectric resonator antenna (DRA) and a Fabry-Perot resonator antenna (FPRA), wherein the hollow dielectric block may be configured to serve as the resonator for the DRA and the superstrate for the FPRA simultaneously. The resonant frequencies of the DRA and FPRA of a hollow dielectric block dual-fed dual-frequency antenna of embodiments can be determined independently.
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公开(公告)号：US09966662B2
公开(公告)日：2018-05-08
申请号：US14870686
申请日：2015-09-30
发明人： Kwok Wa Leung , Li Ying Feng
摘要： An antenna for use in a communication system with a number of plates connected to a ground plane, where when the number of plates are excited by at least two electrical signals, the number of plates are arranged to radiate at least two electromagnetic signals each having an independent resonant frequency.
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公开(公告)号：US20240258695A1
公开(公告)日：2024-08-01
申请号：US18162845
申请日：2023-02-01
发明人： Kwok Wa Leung , Chen Yang , Kai Lu
CPC分类号： H01Q5/392 , H01Q19/005
摘要： A multi-polarization antenna includes a plurality of antenna elements and a dielectric arrangement operably coupled with the plurality of antenna elements. The dielectric arrangement is arranged to cooperate with the plurality of antenna elements to (i) facilitate transmission and/or receive of, at least, electromagnetic waves with a first polarization, electromagnetic waves with a second polarization different from the first polarization, and electromagnetic waves with a third polarization different from the first polarization and the second polarization, and (ii) reduce, limit, and/or eliminate mutual coupling between at least some of the plurality of antenna elements during operation. The first, second, and third polarizations are non-orthogonal.
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公开(公告)号：US20230318187A1
公开(公告)日：2023-10-05
申请号：US17713280
申请日：2022-04-05
发明人： Kwok Wa Leung , Hauke Ingolf Kremer , Wai Ki Lee
CPC分类号： H01Q9/0485 , H01Q13/28 , H01Q15/10 , H01Q1/38 , H01Q9/045
摘要： A substrate-integrated dielectric resonator contains a substrate layer with a first dielectric constant, a plurality of dielectric vias, and a plurality of second vias. Each dielectric via includes a first via-hole extending through the substrate layer, and a dielectric material with a second dielectric constant contained within the first via-hole. Each second via has a second via-hole extending through the substrate layer and filled with gas. A dielectric resonator antenna containing a substrate-integrated dielectric resonator and a method of fabricating the same is also disclosed. By skillfully arranging second vias inside the DRA, the resonant frequencies of different modes can be controlled, and a wide impedance band-width with stable radiation performance can be achieved.
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公开(公告)号：US11664598B2
公开(公告)日：2023-05-30
申请号：US17233401
申请日：2021-04-16
发明人： Kwok Wa Leung , Xi-Yao Liu , Nan Yang
CPC分类号： H01Q9/045 , H01Q1/48 , H01Q9/0464
摘要： The present disclosure includes an omnidirectional dielectric resonator antenna (DRA). The omnidirectional DRA comprises a substrate, a dielectric, and a planar antenna positioned between the substrate and the dielectric. The planar antenna comprises a central planar feed positioned on the substrate. The planar antenna also comprises a plurality of feed lines coupled to, and extending outward from, the central planar feed. The planar antenna also comprises a plurality of arms coupled to the plurality of feed lines. Each arm extends from a corresponding feed line.
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公开(公告)号：US11303034B2
公开(公告)日：2022-04-12
申请号：US16715104
申请日：2019-12-16
发明人： Kwok Wa Leung , Kai Lu
摘要： A parallel-plate antenna or antenna array suitable for operation at millimeter wave frequencies. The antenna includes an antenna element having a ground plane with a slot and a pair of parallel plates connected to the ground plane. The parallel plates extend generally perpendicularly from the ground plane. In plan view, the slot is arranged between the parallel plates. The antenna also includes a feed operably coupled with the slot for feeding the slot during operation so as to generate a circularly polarized signal for radiation.
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