公开(公告)号：US20240429625A1

公开(公告)日：2024-12-26

申请号：US18827064

申请日：2024-09-06

Applicant: Cambium Networks Ltd

Inventor： Adam Wilkins ,  Paul Clark ,  Nigel King

IPC: H01Q21/06 ,  H01Q1/42 ,  H01Q1/48

Abstract: An antenna array assembly comprises a ground plane, an array of patch radiator elements having a plurality of rows and a plurality of columns of patch radiator elements disposed in a plane parallel to a first face of the ground plane and a non-conductive cover disposed in a generally parallel relationship to the ground plane. The non-conductive cover has a first face, disposed towards the array of patch radiator elements, having an arrangement of alternating parallel ridges and grooves, in which, in a cross section in a plane perpendicular to the first face of the ground plane, the ridges extend towards the array of patch radiator elements and the grooves extend away from the array of patch radiator elements. Each row of patch radiator elements is disposed in a parallel relationship to each ridge.

公开(公告)号：US11936113B2

公开(公告)日：2024-03-19

申请号：US17534045

申请日：2021-11-23

Applicant: Cambium Networks Ltd

Inventor： Jomon Thomas ,  Deepu Nair ,  Visalakshy Tc ,  Nigel King ,  Varun Hegde

IPC: H01Q21/08 ,  H01Q9/04 ,  H01Q1/24 ,  H01Q1/42 ,  H01Q1/48

CPC classification number: H01Q21/08 ,  H01Q9/0414 ,  H01Q1/246 ,  H01Q1/42 ,  H01Q1/48

Abstract: An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate, and a first, second, third and fourth elongate passive radiator, each comprising one or more substantially planar conductive parts which are electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. The third and fourth elongate passive radiators are disposed further from the linear array than are the first and second elongate passive radiators. Each of the third and fourth elongate passive radiators is narrower than and projects further from the ground plate than does each of the first and second elongate passive radiators.

公开(公告)号：US11849383B2

公开(公告)日：2023-12-19

申请号：US17843498

申请日：2022-06-17

Applicant: Cambium Networks Ltd

Inventor： Kiran Avva ,  Rupam Khaitan ,  Yonghao Lin

IPC: H04W40/24 ,  H04L45/00 ,  H04L45/741 ,  H04L45/748

CPC classification number: H04W40/248 ,  H04L45/66 ,  H04L45/741 ,  H04L45/748

Abstract: Packets are routed in a data network comprising a wireless mesh network and a controller providing IPv6 management traffic to nodes of the wireless network. A monitor function and a route table manager are used to generate a route table relating IPv6 addresses to each of the nodes via a respective one of a plurality of POP nodes, by accessing a pre-configured topology file, determining the reachability of each of the plurality of POP nodes from the controller by periodically sending test messages from the monitor function to each POP and detecting acknowledgement of the test messages. If a POP node is not reachable, the route table is updated to relate the IPv6 subnet of the POP that is not reachable to the address of a POP node that is reachable. A Layer 2 network is used to direct the IPv6 management traffic according to the amended route table.

公开(公告)号：US20230327344A1

公开(公告)日：2023-10-12

申请号：US18334083

申请日：2023-06-13

Applicant: Cambium Networks Ltd

Inventor： Robert UPTON ,  Varun Hegde ,  Michael Wright ,  Paul Clark ,  Matt Fuller ,  Nigel Jonathan Richard King

IPC: H01Q19/19 ,  H01Q15/16 ,  H01Q19/17 ,  H01Q21/06

CPC classification number: H01Q19/193 ,  H01Q15/16 ,  H01Q19/17 ,  H01Q21/06 ,  H01Q19/192

Abstract: A wireless transceiver for a wireless communication network has an offset Gregorian antenna arrangement comprising a primary reflector dish, an electrically conductive reflector member comprising a secondary reflector and a conductive support wall, a planar array of antenna elements arranged as a feed for transmitting radio frequency signals to the secondary reflector and/or for receiving radio frequency signals from the secondary reflector and a conductive support block configured to support the planar array of antenna elements. The conductive support wall is connected directly to the conductive support block, and the conductive support wall is configured to be substantially perpendicular to the planar array of antenna elements.

公开(公告)号：US20220085518A1

公开(公告)日：2022-03-17

申请号：US17534045

申请日：2021-11-23

Applicant: Cambium Networks Ltd

Inventor： Jomon THOMAS ,  Deepu NAIR ,  Visalakshy TC ,  Nigel KING ,  Varun HEDGE

IPC: H01Q21/08 ,  H01Q9/04

Abstract: An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate, and a first, second, third and fourth elongate passive radiator, each comprising one or more substantially planar conductive parts which are electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. The third and fourth elongate passive radiators are disposed further from the linear array than are the first and second elongate passive radiators. Each of the third and fourth elongate passive radiators is narrower than and projects further from the ground plate than does each of the first and second elongate passive radiators.

公开(公告)号：US20220085496A1

公开(公告)日：2022-03-17

申请号：US17534005

申请日：2021-11-23

Applicant: Cambium Networks Ltd

Inventor： Deepu Nair ,  Jomon Thomas ,  Varun Hedge ,  Visalakshy Tc ,  Nigel King

IPC: H01Q1/52 ,  H01Q21/08 ,  H01Q9/04

Abstract: An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate and a first and second elongate passive radiator each comprising a plurality of conductive parts electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. At least some of the conductive parts of a respective elongate passive radiator are disposed in an arrangement having parallel ridges and grooves, in which, in a cross section in a plane parallel to the first face of the ground plate, the ridges extend towards the linear array and the grooves extend away from the linear array.

公开(公告)号：US20190356377A1

公开(公告)日：2019-11-21

申请号：US16531946

申请日：2019-08-05

Applicant: Cambium Networks Ltd

Inventor： Peter STRONG ,  Paul Clark ,  Martin Crowle

IPC: H04B7/08 ,  H04B7/06 ,  H04B7/0408 ,  H04B7/10

Abstract: An access point for use in a point to multipoint wireless network comprises a sector antenna and an antenna array of antenna elements, the antenna elements not including the sector antenna, and the antenna elements being arranged to receive signals from the same sector as the sector antenna. A first beamformer is configurable to form a first beam from signals received at the antenna array and a selector switch is switchable to at least a first state in which signals received at the sector antenna are connected to a first receiver, and a second state in which signals received from the first beamformer are connected to the first receiver. A scheduler is configured to set the selector switch to the first state for at least a first receive timeslot and to the second state for at least a second receive timeslot.

公开(公告)号：US10389427B2

公开(公告)日：2019-08-20

申请号：US15869883

申请日：2018-01-12

Applicant: Cambium Networks Ltd

Inventor： Peter Strong ,  Paul Clark ,  Martin Crowle

IPC: H04B7/08 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/10

Abstract: An access point (1) for use in a point to multipoint wireless network comprises a sector antenna (8) and an antenna array of antenna elements (7), the antenna elements not including the sector antenna, and the antenna elements being arranged to receive signals from the same sector as the sector antenna. A first beamformer (10) is configurable to form a first beam (11) from signals received at the antenna array and a selector switch (5) is switchable to at least a first state in which signals received at the sector antenna (8) are connected to a first receiver (2), and a second state in which signals received from the first beamformer (10) are connected to the first receiver (2). A scheduler is configured to set the selector switch (5) to the first state for at least a first receive timeslot and to the second state for at least a second receive timeslot.

公开(公告)号：US20240396595A1

公开(公告)日：2024-11-28

申请号：US18674381

申请日：2024-05-24

Applicant: Cambium Networks Ltd

Inventor： Peter Strong

IPC: H04B7/0426 ,  H04B7/06 ,  H04B7/08

Abstract: A first wanted signal beam is formed at a multi-element antenna array to receive a first wanted signal having a first and second sub-carrier, each having known transmitted modulation, and the subcarriers are combined using a first linear relationship determined to reduce a component of the wanted signal. A first orthogonal beam is formed that is orthogonal to the first wanted signal beam, and a first subcarrier received in the first orthogonal beam corresponding in frequency to the first subcarrier of the first wanted signal is combined, using the first linear relationship, with a second subcarrier received in the first orthogonal beam corresponding in frequency to the second subcarrier of the first wanted signal. The linear combinations are processed to generate weights, which are applied to interference received in the first orthogonal beam to produce weighted interference which is combined with the received first wanted signal to reduce interference.

公开(公告)号：US11943651B2

公开(公告)日：2024-03-26

申请号：US15931318

申请日：2020-05-13

Applicant: Cambium Networks Ltd

Inventor： Antony Jamin ,  Mark Thomas ,  Gregor Dean

IPC: H04W28/02 ,  H04L41/0654 ,  H04W24/04 ,  H04W36/22 ,  H04W72/0446 ,  H04W76/15 ,  H04W76/25 ,  H04W88/06

CPC classification number: H04W28/0247 ,  H04L41/0654 ,  H04W24/04 ,  H04W36/22 ,  H04W72/0446 ,  H04W76/15 ,  H04W76/25 ,  H04W88/06

Abstract: Data is transmitted from a first wireless station comprising first and second transmitters to a second wireless station comprising first and second receivers. In the absence of radio link failure detection, first data is transmitted via a first radio link from the first transmitter to the first receiver using a first subset of first radio resource blocks and transmitting second data via a second radio link from the second transmitter to the second receiver using second subset of the first radio resource blocks. The first and second radio links are monitored for a failure. If first radio link failure is detected, the second radio link is operated using a combination of the first and second subsets of the first radio resource blocks. If second radio link failure is detected, the first radio link is operated using a combination of the first and second subsets of the first radio resource blocks.