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公开(公告)号：US20220416439A1
公开(公告)日：2022-12-29
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
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：US20220399869A1
公开(公告)日：2022-12-15
申请号：US17892492
申请日：2022-08-22
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：US11184272B2
公开(公告)日：2021-11-23
申请号：US16218672
申请日：2018-12-13
Applicant: Silicon Laboratories Inc.
Inventor： Yan Zhou , Wentao Li , Terry Lee Dickey
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 listens for a signature that may indicate the presence of a low power protocol packet, such as BLE or Zigbee. The lower-power controller checks for a waveform that is representative of a Zigbee packet prior to generating a request signal to the WIFI controller. 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：US20180242341A1
公开(公告)日：2018-08-23
申请号：US15956815
申请日：2018-04-19
Applicant: Silicon Laboratories, Inc.
Inventor： Terry Lee Dickey , Christopher L. McCrank , Jesse Ira Masters , Donald Miner Markuson , Micah Solomon Evans
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：US20180159214A1
公开(公告)日：2018-06-07
申请号：US15370724
申请日：2016-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Attila Zolomy , Tamas Bodi , Tibor Herman , Terry Lee Dickey
Abstract: An apparatus includes a first antenna coupled to a first radio frequency (RF) circuit to receive or transmit RF signals, and a second antenna coupled to a second RF circuit to receive or transmit RF signals. The apparatus further includes a first RF current blocker disposed between the first and second antennas, and a second RF current blocker disposed between the first and second antennas. The first and second RF current blockers increase isolation between the first and second antennas.
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Patent Agency Ranking
公开(公告)号：US20170325252A1
公开(公告)日：2017-11-09
申请号：US15658942
申请日：2017-07-25
Applicant: Silicon Laboratories Inc.
Inventor： Terry Lee Dickey , Hendricus DeRuijter
CPC classification number: H04W72/1215 , H04L1/1685 , H04L1/188 , H04W4/80 , H04W72/14 , H04W84/12 , H04W88/06 , 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：US11984866B2
公开(公告)日：2024-05-14
申请号：US17892492
申请日：2022-08-22
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
CPC classification number: H03H7/0115 , H03H7/0153 , H04B1/0458 , H04B1/18 , H04B1/40 , H03H2007/013
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：US11978962B2
公开(公告)日：2024-05-07
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 , H01Q1/48 , H01Q1/50 , H01Q1/523 , H01Q9/0407
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：US11686834B2
公开(公告)日：2023-06-27
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：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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