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公开(公告)号：US11652525B2
公开(公告)日：2023-05-16
申请号：US17703831
申请日：2022-03-24
发明人： Eric Pepin , Kim W. Schulze , Amir Agah , Dean A. De Carli , Philippe Riondet
CPC分类号： H04B7/0617 , H04B7/0686 , H04B17/11
摘要： Systems, methods, and computer-readable media are provided for hybrid beamforming. An example method can include determining digital beamforming weights associated with a plurality of digital beamforming paths between digital beamformers and groups of analog beamforming circuits in a phased array antenna, each digital beamforming path being coupled to a group of analog beamforming circuits and each analog beamforming circuit being coupled to a respective set of antenna elements of the phased array antenna; determining analog beamforming weights associated with the groups of analog beamforming circuits, the analog beamforming weights comprising inverses of the digital beamforming weights; determining calibration offsets estimated to put analog beamforming paths associated with the groups of analog beamforming circuits in a desired phase and gain relationship to each other; and varying, based at least partly on the calibration offsets, a signal phase shift across the analog beamforming paths associated with the groups of analog beamforming circuits.
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公开(公告)号：US20230370106A1
公开(公告)日：2023-11-16
申请号：US18227686
申请日：2023-07-28
发明人： Amir Agah , Eric Pepin , Kim W. Schulze
IPC分类号： H04B1/3805 , H04B1/10 , H04B1/00
CPC分类号： H04B1/3805 , H04B1/006 , H04B1/1081 , H04B2001/3811
摘要： Systems and Techniques are provided for a radio frequency input/output (RFIO) circuit. An example RFIO circuit can include an a receive (Rx) path comprising a low noise amplifier (LNA). The example RFIO circuit can include a transmit (Tx) path comprising a power amplifier (PA). The example RFIO circuit can include a balun configured to RF couple an RFIO terminal to the Rx path or to the Tx path. The one or more selection components are configured to selectively enable the Rx path or the Tx path.
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公开(公告)号：US20220311467A1
公开(公告)日：2022-09-29
申请号：US17703766
申请日：2022-03-24
发明人： Amir Agah , Eric Pepin , Kim W. Schulze
IPC分类号： H04B1/3805 , H04B1/00 , H04B1/10
摘要： Technologies for provided for a radio frequency input/output (RFIO) combiner/splitter. An example combiner/splitter can include an RFIO circuit including a receive path including first and second low noise amplifiers (LNAs), first switches, resistors, and capacitors, each of the first switches being in series with a respective one of the first capacitors and first resistors;
a transmit path including a first power amplifier (PA) including second switches coupled to second resistors and third switches coupled to third resistors, and a second PA including fourth switches coupled to fourth resistors and fifth switches coupled to fifth resistors, each of the second switches, the third switches, the fourth switches, and the fifth switches being in series with one or more respective ones of the second resistors, the third resistors, the fourth resistors, and the fifth resistors; and a balun that couples the Rx and Tx path to an RFIO terminal.-
公开(公告)号：US20230283338A1
公开(公告)日：2023-09-07
申请号：US18197597
申请日：2023-05-15
发明人： Eric Pepin , Kim W. Schulze , Amir Agah , Dean A. De Carli , Philippe Riondet
CPC分类号： H04B7/0617 , H04B17/11 , H04B7/0686
摘要： Systems, methods, and computer-readable media are provided for hybrid beamforming. An example method can include determining a plurality of digital beamforming weights associated with a plurality of digital beamforming paths between digital beamformers and groups of analog beamforming circuits in a phased array antenna, each digital beamforming path being coupled to a group of analog beamforming circuits and each analog beamforming circuit being coupled to a respective set of antenna elements of the phased array antenna, and determining analog beamforming weights associated with the groups of analog beamforming circuits. The analog beamforming weights are estimated to put analog beamforming paths associated with the groups of analog beamforming circuits in a desired phase and gain relationship with each other. The method can include varying, based at least partly on the analog beamforming weights, a signal phase shift across the analog beamforming paths associated with the groups of analog beamforming circuits.
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公开(公告)号：US20220321185A1
公开(公告)日：2022-10-06
申请号：US17703831
申请日：2022-03-24
发明人： Eric Pepin , Kim W. Schulze , Amir Agah , Dean A. De Carli , Philippe Riondet
摘要： Systems, methods, and computer-readable media are provided for hybrid beamforming. An example method can include determining digital beamforming weights associated with a plurality of digital beamforming paths between digital beamformers and groups of analog beamforming circuits in a phased array antenna, each digital beamforming path being coupled to a group of analog beamforming circuits and each analog beamforming circuit being coupled to a respective set of antenna elements of the phased array antenna; determining analog beamforming weights associated with the groups of analog beamforming circuits, the analog beamforming weights comprising inverses of the digital beamforming weights; determining calibration offsets estimated to put analog beamforming paths associated with the groups of analog beamforming circuits in a desired phase and gain relationship to each other; and varying, based at least partly on the calibration offsets, a signal phase shift across the analog beamforming paths associated with the groups of analog beamforming circuits.
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公开(公告)号：US11716110B2
公开(公告)日：2023-08-01
申请号：US17703766
申请日：2022-03-24
发明人： Amir Agah , Eric Pepin , Kim W. Schulze
IPC分类号： H04B1/3805 , H04B1/10 , H04B1/00
CPC分类号： H04B1/3805 , H04B1/006 , H04B1/1081 , H04B2001/3811
摘要： Technologies for provided for a radio frequency input/output (RFIO) combiner/splitter. An example combiner/splitter can include an RFIO circuit including a receive path including first and second low noise amplifiers (LNAs), first switches, resistors, and capacitors, each of the first switches being in series with a respective one of the first capacitors and first resistors; a transmit path including a first power amplifier (PA) including second switches coupled to second resistors and third switches coupled to third resistors, and a second PA including fourth switches coupled to fourth resistors and fifth switches coupled to fifth resistors, each of the second switches, the third switches, the fourth switches, and the fifth switches being in series with one or more respective ones of the second resistors, the third resistors, the fourth resistors, and the fifth resistors; and a balun that couples the Rx and Tx path to an RFIO terminal.
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公开(公告)号：US11563270B1
公开(公告)日：2023-01-24
申请号：US17149496
申请日：2021-01-14
IPC分类号： H01Q3/30
摘要： Systems, methods, and non-transitory media are provided for cross-coupling modeling and compensation. An example method can include determining one or more cross-coupling coefficients representing electrical cross-coupling within a component of a phased array antenna, wherein the component of the phased array antenna includes one or more signal paths between one or more beamformers of the phased array antenna and a set of antenna elements of the phased array antenna; based on the one or more cross-coupling coefficients, modifying one or more beamforming weights calculated for one or more signals routed via the one or more signal paths, wherein the modified one or more beamforming weights compensate for the electrical cross-coupling effect within the component of the phased array antenna; and applying, by the one or more beamformers, the modified one or more beamforming weights to the one or more signals routed via the one or more signal paths.
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公开(公告)号：US20240030597A1
公开(公告)日：2024-01-25
申请号：US18223941
申请日：2023-07-19
发明人： Kim W. Schulze , Amir Agah , Eric Pepin , Mehrdad Nosrati
CPC分类号： H01Q3/2658 , H01Q3/28 , H01Q3/36 , H04B7/086 , H04B7/0617
摘要： A serially fed front end (FE) network is provided. The serially fed FE network includes a first FE comprising a first FE input/output (IO), a second FE IO, and a first antenna IO coupled to a first antenna element of a plurality of antenna elements. The first FE IO of the first FE is electrically coupled to a particular beamformer (BF) IO of a BF. The serially fed FE network includes a second FE comprising a first FE IO coupled to the second FE IO of the first FE, a second FE IO of the second FE, and a second antenna IO coupled to a second antenna element of the plurality of antenna elements. The BF is communicatively coupled by the serially fed FE network to transmit to and/or receive signals from the first and second antenna elements of the plurality of antenna elements.
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公开(公告)号：US20230134123A1
公开(公告)日：2023-05-04
申请号：US18091995
申请日：2022-12-30
IPC分类号： H01Q3/30
摘要： Systems, methods, and non-transitory media are provided for cross-coupling modeling and compensation. An example method can include determining one or more cross-coupling coefficients representing electrical cross-coupling between a first signal path through a component and a second signal path through the component; based on the one or more cross-coupling coefficients, determining a first modified beamforming weight for a first signal associated with the first signal path through the component and a second modified beamforming weight for a second signal associated with the second signal path through the component, wherein the first and second modified beamforming weights compensate for the electrical cross-coupling between the first signal path through the component and the second signal path through the component; applying the first modified beamforming weight to the first signal associated with the first signal path; and applying the second modified beamforming weight to the second signal associated with the second signal path.
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