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公开(公告)号：US20220416436A1
公开(公告)日：2022-12-29
申请号：US17356853
申请日：2021-06-24
Applicant: Silicon Laboratories Inc.
Inventor： Attila Zólomy , Adám Süle , Andrea Nagy , Jeffrey Tindle , Pasi Rahikkala , Terry Lee Dickey
Abstract: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.
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公开(公告)号：US12113288B2
公开(公告)日：2024-10-08
申请号：US17356766
申请日：2021-06-24
Applicant: Silicon Laboratories Inc.
Inventor： Terry Lee Dickey , Attila Zólomy , Adám Süle , Sauli Lehtimaki , Szabolcs Lörincz
CPC classification number: H01Q21/24 , G01S3/08 , H01Q15/244 , H01Q15/246 , H01Q21/245
Abstract: A system and method for selecting a polarization for a particular antenna in an antenna array is disclosed. The system comprises an antenna array, wherein each antenna is adapted to receive and transmit horizontally and vertically polarized signals. The system also includes a switching network that is adapted to select the vertical or horizontal polarized signal for each antenna in the antenna array. The switching network also allows selection of a circular polarized signal from one or more of the antenna elements in the antenna array. This allows the AoX to be more accurate, as it is able to receive horizontally and vertically polarized signals, rather than just circular polarized signals, thereby improving its accuracy. The ability to receive circular polarized signals may be beneficial during reference periods to acquire the proper gain and frequency.
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公开(公告)号：US11611152B2
公开(公告)日：2023-03-21
申请号：US17356853
申请日：2021-06-24
Applicant: Silicon Laboratories Inc.
Inventor： Attila Zólomy , Adám Süle , Andrea Nagy , Jeffrey Tindle , Pasi Rahikkala , Terry Lee Dickey
Abstract: An antenna array that utilizes ground guard rings and metamaterial structures is disclosed. In certain embodiments, the antenna array is constructed from a plurality of antenna unit cells, wherein each antenna unit cell is identical. The antenna unit cell comprises a top surface, that contains a patch antenna and a ground guard ring. A reactive impedance surface (RIS) layer is disposed beneath the top surface and contains the metamaterial structures. The metamaterial structures are configured to present an inductance to the patch antennas, thereby allowing the patch antennas to be smaller than would otherwise be possible. In some embodiments, the metamaterial structures comprise hollow square frames. An antenna array constructed using this antenna unit cell has less coupling than conventional antenna arrays, which results in better performance. Furthermore, this new antenna array also requires less space than conventional antenna arrays.
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公开(公告)号：US20220416445A1
公开(公告)日：2022-12-29
申请号：US17356766
申请日：2021-06-24
Applicant: Silicon Laboratories Inc.
Inventor： Terry Lee Dickey , Attila Zólomy , Adám Süle , Sauli Lehtimaki , Szabolcs Lörincz
Abstract: A system and method for selecting a polarization for a particular antenna in an antenna array is disclosed. The system comprises an antenna array, wherein each antenna is adapted to receive and transmit horizontally and vertically polarized signals. The system also includes a switching network that is adapted to select the vertical or horizontal polarized signal for each antenna in the antenna array. The switching network also allows selection of a circular polarized signal from one or more of the antenna elements in the antenna array. This allows the AoX to be more accurate, as it is able to receive horizontally and vertically polarized signals, rather than just circular polarized signals, thereby improving its accuracy. The ability to receive circular polarized signals may be beneficial during reference periods to acquire the proper gain and frequency.
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