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公开(公告)号：US10075198B1
公开(公告)日：2018-09-11
申请号：US15085653
申请日：2016-03-30
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , Varadarajan Gopalakrishnan , Cheol Su Kim , In Chul Hyun
IPC: H04B1/00 , H04B7/0413 , H04W84/12
CPC classification number: H04B1/0057 , H04B7/0413 , H04W84/12 , H04W88/06
Abstract: Radio frequency (RF) front-end circuitry and methods of operating the same are described. One apparatus includes multiple antennas and a RF front-end circuitry. The RF front-end circuitry includes a first diplexer, a second diplexer, a third diplexer, a fourth diplexer, and a switch. A first transceiver is coupled to a first antenna via the first diplexer and the second diplexer. The third receiver is coupled to the first antenna via the first diplexer. The second transceiver is selectively coupled to a second antenna via the third diplexer, the switch, and the fourth diplexer when the switch is set to the first mode in response to the control signal from a processing component. The first transceiver is selectively coupled to the second antenna via the switch and the third diplexer when the switch is set to the first mode in response to the control signal from the processing component.
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公开(公告)号：US09786994B1
公开(公告)日：2017-10-10
申请号：US14221136
申请日：2014-03-20
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , Cheol Su Kim , In Chul Hyun
CPC classification number: H01Q21/0006 , H01Q1/243 , H01Q5/335 , H01Q5/342 , H01Q9/0421 , H01Q21/28 , H01Q25/04
Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a first radio frequency (RF) feed, a second RF feed and an antenna structure. The antenna structure includes a ground plane, a first antenna element coupled to the first RF feed, a second antenna element coupled to the second RF feed and coupled to the ground plane at a first grounding point located at a distal end of the second antenna element. The first antenna element operates as a first directly-fed element and the second antenna element operates as a first parasitic ground element when RF signals in a first frequency range are applied to the first RF feed. The second antenna element operates as a second directly-fed element when RF signals in a second frequency range are applied to the second RF feed, the second frequency range being higher than the first frequency range. The first antenna element is grounded by the RF short circuit when the RF signals in the second frequency range are applied to the second RF feed.
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公开(公告)号：US20170222666A1
公开(公告)日：2017-08-03
申请号：US15154314
申请日：2016-05-13
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： In Chul Hyun , Andrew David Price , Tzung-I Lee , Kwok Lee , Cheol Su Kim , Omar Fawazhashim Zakaria , Varadarajan Gopalakrishnan
CPC classification number: H04B1/0057 , H01Q1/243 , H01Q1/50 , H01Q5/30 , H01Q19/106 , H01Q19/185 , H01Q21/205 , H01Q21/24 , H01Q21/28 , H01Q21/29 , H04L67/06 , H04L67/104 , H04L67/1091 , H04L67/1097 , H04M1/026 , H04W40/02 , H04W84/12 , H04W84/18 , H04W84/22
Abstract: Network hardware devices organized in a Wireless mesh network (WMN) in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure are described. One mesh network device includes a micro controller, RF radios, and antenna switching circuitry. The antenna switching circuitry, in response to the control signals from a micro controller, selectively couples individual ones of a first set of antennas to individual channels of the set of RF radios to communicate content data with client consumption devices and selectively couples individual ones of a second set of antennas to other individual channels of the set of RF radios to communicate content data with other mesh network devices in a WMN.
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公开(公告)号：US09711858B1
公开(公告)日：2017-07-18
申请号：US13781279
申请日：2013-02-28
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , In Chul Hyun , Cheol Su Kim
CPC classification number: H01Q9/06 , H01Q1/243 , H01Q1/36 , H01Q5/335 , H01Q5/378 , H01Q7/00 , H01Q9/42
Abstract: Antenna structures and methods of operating the same of a dual-feed antenna of an electronic device are described. A dual-feed antenna includes a first antenna element coupled to a controllable circuit that is coupled a first radio frequency (RF) feed, and a second antenna element coupled to a second RF feed. The controllable circuit is configured to electrically connect the first antenna element to the first RF feed in a first antenna configuration and to electrically connect the first antenna element to ground in a second antenna configuration. During the second antenna configuration, the second antenna element is driven by the second RF feed.
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公开(公告)号：US09431717B1
公开(公告)日：2016-08-30
申请号：US13926873
申请日：2013-06-25
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , In Chul Hyun , Adrian Napoles
Abstract: Antenna structures and methods of operating the same of a wideband dual-arm antenna of an electronic device are described. One wideband antenna includes a first feeding arm coupled to a radio frequency (RF) feed and a second feeding arm coupled to the RF feed. At least a portion of the second feeding arm is parallel to the first feeding arm. The wideband dual-arm antenna further includes a third arm coupled to the ground plane. The third arm is a parasitic ground element that forms a coupling to the first feeding arm and the second feeding arm. The parasitic element increases a bandwidth of the wideband antenna.
Abstract translation: 描述了电子设备的宽带双臂天线的天线结构和操作方法。 一个宽带天线包括耦合到射频（RF）馈电的第一馈送臂和耦合到RF馈送的第二馈送臂。 第二进给臂的至少一部分平行于第一进给臂。 宽带双臂天线还包括耦合到接地平面的第三臂。 第三臂是与第一进给臂和第二进给臂形成联接的寄生接地元件。 寄生元件增加了宽带天线的带宽。
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Patent Agency Ranking
公开(公告)号：US11218203B1
公开(公告)日：2022-01-04
申请号：US16776235
申请日：2020-01-29
Applicant: Amazon Technologies, Inc.
Inventor： Tzung-I Lee , Kun Ting Tsai , Haritha Tamvada , Kwok Shing Lee , Cheol Su Kim , Omar Fawazhashim Zakaria , In Chul Hyun , Ali Mirkamali , Dan Richard Brukwinski
IPC: H04B7/06 , H04B7/0413 , H01Q3/34 , H04W88/02 , H04W84/12
Abstract: Technologies directed to coordinated dynamic analog beamforming are described. One method includes receiving, by a digital controller of a first wireless device, a data packet, the data packet comprising a destination address of a second wireless device. The method further includes retrieving, from memory, beamformer configuration data associated with the destination address, the beamformer configuration data comprising a phase shifter angle value for a radiation pattern. The method sends, to a beamformer circuit, the phase shifter angle value, the beamformer circuit comprises a power splitter and a set of phase shifters (e.g., at least four). The method causes the set of phase shifters to steer the radiation pattern of electromagnetic energy, radiated by an antenna array of elements, at the phase shifter angle value and sends the data packet to the second wireless device via the antenna array.
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公开(公告)号：US10855351B1
公开(公告)日：2020-12-01
申请号：US16215186
申请日：2018-12-10
Applicant: Amazon Technologies, Inc.
Inventor： Kun Ting Tsai , Kiran Kumar Edara , Sarang Wagholikar , Omar Fawazhashim Zakaria , Ashish Kumar Shukla , Tzung-I Lee , Ali Mirkamali
IPC: H04B7/06 , H01Q21/28 , H01Q21/29 , H04B17/327 , H01Q25/00
Abstract: A wireless device includes a radio, a first directional antenna, a second directional antenna, an omnidirectional antenna, and a switch selectively coupled between the radio and the first directional antenna, the second directional antenna, and the omnidirectional antenna. A processor is coupled to the switch and to, for a frame: determine, based on an arbitration table, a destination medium access control address of a client wireless device and identifiers of antennas for transmitting the frame and receiving acknowledgement data; cause the switch to couple the radio to the first directional antenna; transmit the frame to the client wireless device via the first directional antenna, wherein the first client wireless device is located along a first direction with respect to the wireless device; cause the switch to couple the radio to the omnidirectional antenna; and receive an acknowledgment, corresponding to the frame, from the client wireless device via the omnidirectional antenna.
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公开(公告)号：US20200021038A1
公开(公告)日：2020-01-16
申请号：US16034938
申请日：2018-07-13
Applicant: Amazon Technologies, Inc.
Inventor： Tzung-I Lee , Omar Fawazhashim Zakaria , Kwok Shing Lee , Kalyan Teja Posani , Ali Mirkamali , Cheol Su Kim , In Chul Hyun
Abstract: Technologies for wireless network devices with surface-link antenna systems mounted on exterior surfaces of buildings are described. One wireless network device includes a housing with a circuit board and a first antenna port. A processor, a first antenna, a first wireless local area network (WLAN) radio, and a second WLAN radio are disposed on the circuit board. The first WLAN radio communicates with a radio of a client device using the first antenna over a first line-of-sight (LOS) or non-LOS wireless link (e.g., 2.4 GHz) inside the building. The second WLAN radio communicates with a radio of a second wireless network device using the second antenna over a second LOS wireless link (e.g., 5 GHz) that is external to the building. The first antenna is located inside the building and the second antenna is located along an exterior surface of the building.
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公开(公告)号：US10361490B1
公开(公告)日：2019-07-23
申请号：US14968682
申请日：2015-12-14
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , In Chul Hyun
Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a radio coupled to a RF feed and an RF switch, a first antenna element coupled to the RF feed, and a second antenna element coupled to the RF switch, the RF switch being coupled to a grounding point of a ground plane. The radio controls the RF switch between a first mode and a second mode. The radio causes the first antenna element to radiate electromagnetic energy in a first radiation pattern in the first mode and causes the second antenna element to radiate electromagnetic energy in a second radiation pattern in the second mode. The second radiation pattern is different than the first radiation pattern.
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公开(公告)号：US20190020714A1
公开(公告)日：2019-01-17
申请号：US15650059
申请日：2017-07-14
Applicant: Amazon Technologies, Inc.
Inventor： Tzung-I Lee , Troy Hulick , In Chul Hyun
Abstract: An apparatus includes an elongated housing having a first plurality of sidewalls that form a first isolation chamber on a first side of the elongated housing. A first printed circuit board (PCB) includes a first patch element, wherein the PCB defines a first plane. A first parasitic element disposed in a second plane, wherein the first parasitic element is retained a predetermined distance from the first patch element in the first plane. A second PCB is disposed within the elongated housing. A first radio is disposed on the second PCB, wherein the first radio is coupled to the first patch element, and wherein the first patch element and the first parasitic element, in response to radio frequency (RF) signals from the first radio, radiate electromagnetic energy in a first direction away from the first isolation chamber.
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