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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：US12009597B2
公开(公告)日：2024-06-11
申请号：US17830536
申请日：2022-06-02
Applicant: Silicon Laboratories Inc.
Inventor： Attila Zólomy , Ádám Süle , Daniel Simon , Kiruba Sankaran Subramani , Terry Lee Dickey , Jeffrey Tindle
CPC classification number: H01Q21/065 , H01Q9/045 , H01Q15/0086
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. A ground skirt surrounds the perimeter of the antenna array to improve radiation phase pattern balance within the array.
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公开(公告)号：US20230015164A1
公开(公告)日：2023-01-19
申请号：US17486037
申请日：2021-09-27
Applicant: Silicon Laboratories Inc.
Inventor： Terry Lee Dickey , Yan Zhou , Michael Wu
Abstract: A system and method for one-way ranging is disclosed. The system comprises a transmitter, also referred to as tag, transmitting a packet having a first frequency. The receiver, also referred to as the locator, receives the first frequency and measures the phase at a specific point in time. At a predetermined time, the transmitter switches to a second frequency. This is performed while maintaining phase continuity. The receiver also switches to the second frequency at nearly the same time. The receiver then measures the phase of the second frequency at a second point in time. Based on these two phase measurements, the distance between the transmitter and the receiver may be calculated.
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公开(公告)号：US11368203B1
公开(公告)日：2022-06-21
申请号：US17486042
申请日：2021-09-27
Applicant: Silicon Laboratories Inc.
Inventor： Terry Lee Dickey , Yan Zhou , Wentao Li , Michael Wu
Abstract: A system and method for one-way ranging is disclosed. The system comprises a transmitter, also referred to as a tag, transmitting a packet having a sounding sequence. The receiver, also referred to as the locator, receives the sounding sequence. The receiver measures and saves the phase at a plurality of points in time. The sounding sequence has two frequencies, which are additive inverses of one another. A discrete Fourier transform is performed on the plurality of phase measurements to determine the phase of each of the two frequencies. The difference between these two frequencies is related to the time that the packet traveled. Additionally, a calibration of the transmit path and/or receive path may be performed to improve the accuracy of the results.
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公开(公告)号：US20220085787A1
公开(公告)日：2022-03-17
申请号：US17537075
申请日：2021-11-29
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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Patent Agency Ranking
公开(公告)号：US20210175870A1
公开(公告)日：2021-06-10
申请号：US16706433
申请日：2019-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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公开(公告)号：US20170290038A1
公开(公告)日：2017-10-05
申请号：US15591594
申请日：2017-05-10
Applicant: Silicon Laboratories Inc.
Inventor： Terry Lee Dickey , Ramin Khoini-Poorfard , Jason Christopher Rock
CPC classification number: H04W72/1215 , H04L1/1685 , H04W4/80 , H04W16/14 , Y02D70/142 , Y02D70/144 , Y02D70/162
Abstract: A system and method of minimizing interference and retries in an environment where two or more network protocols utilize the same frequency spectrum is disclosed. A lower-power network controller is co-located with a WIFI controller. The lower-power network controller parses incoming packets as they are received and generates a request signal once it is determined that the incoming packet is destined for this device. This maximizes the likelihood that no WIFI traffic will occur while the incoming packet is being received.
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公开(公告)号：US20170290035A1
公开(公告)日：2017-10-05
申请号：US15084125
申请日：2016-03-29
Applicant: Silicon Laboratories, Inc.
Inventor： Terry Lee Dickey , Christopher L. McCrank , Jesse Ira Masters , Donald Miner Markuson , Micah Solomon Evans
CPC classification number: H04W72/1215 , H04L1/1685 , H04W72/14 , H04W88/06 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/162
Abstract: A system and method of minimizing interference and retries in an environment where two or more network protocols utilize the same frequency spectrum is disclosed. A lower-power network controller is co-located with a WIFI controller. The lower-power network controller parses incoming packets as they are received and generates a request signal once it is determined that the incoming packet is destined for this device. This maximizes the likelihood that no WIFI traffic will occur while the incoming packet is being received.
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公开(公告)号：US20240061115A1
公开(公告)日：2024-02-22
申请号：US17892700
申请日：2022-08-22
Applicant: Silicon Laboratories Inc.
Inventor： Attila Zólomy , Terry Lee Dickey , Sauli Johannes Lehtimaki , Ádám Süle , Joel Kauppo , Mika Tapio Länsirinne
Abstract: A system and method for determine the spatial position of a network device is disclosed. A locator device having an antenna array is used to perform an AoX calculation to find the direction to the network device. The AoX calculation utilizes a plurality of the antennas in the antenna array. The locator device also performs a high accuracy distance measurement (HADM). In certain embodiments, only one antenna in the antenna array is used for the HADM calculation. Using the direction and the distance to the network device, the locator is able to determine the spatial position of the network device. In some embodiments, the antenna array may a rotational symmetry array having a plurality of outer antenna elements and one central antenna element.
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公开(公告)号：US20230420869A1
公开(公告)日：2023-12-28
申请号：US17846594
申请日：2022-06-22
Applicant: Silicon Laboratories Inc.
Inventor： Attila Zólomy , Ádám Süle , Joel Kauppo , Terry Lee Dickey , Jeffrey Tindle
CPC classification number: H01Q21/20 , H01Q1/523 , H01Q9/0407 , H01Q1/48
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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