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公开(公告)号：US20220416446A1
公开(公告)日：2022-12-29
申请号：US17903130
申请日：2022-09-06
Applicant: Movandi Corporation
Inventor： Ahmadreza ROFOUGARAN , Farid SHIRINFAR , Sam GHARAVI , Michael BOERS , Seunghwan YOON , Alfred Grau Besoli , Maryam ROFOUGARAN
Abstract: A wireless communication device includes reconfigurable receive transmit antennas having horizontal-polarization antennas and vertical-polarization antennas, where the horizontal-polarization antennas receive or transmit horizontally-polarized signal for a first period of time, where the vertical-polarization antennas transmit or receive vertically-polarized signal for a second period of time, where the horizontal-polarization receive antennas form a receive beam based on receive phase and receive amplitude information provided by a master chip, and where the vertical-polarization transmit antennas form a transmit beam based on transmit phase and transmit amplitude information provided by the master chip.
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公开(公告)号：US20220368407A1
公开(公告)日：2022-11-17
申请号：US17863874
申请日：2022-07-13
Applicant: Movandi Corporation
Inventor： Sam GHARAVI , Ahmadreza ROFOUGARAN , Michael BOERS , Seunghwan YOON , Kartik SRIDHARAN , Donghyup SHIN , Farid SHIRINFAR , Stephen WU , Maryam ROFOUGARAN
IPC: H04B7/155 , H04B7/204 , H04B7/165 , H04W52/24 , H04B7/06 , H04W52/46 , H04B17/318 , H04B7/0413 , H04B7/15
Abstract: A device includes a primary sector and secondary sectors communicatively coupled to the primary sector. The processor included in the primary sector is configured to down convert a Radio Frequency (RF) signals with a first frequency to an analog baseband (IQ) signal with a second frequency, and receive a second digital baseband signal that comprises a first digital baseband signal and a digital echo signal. The first digital baseband signal comprises a training sequence signal. Further, the processor estimates a plurality of filter taps of the FIR filter based on the digital echo signal and estimate the digital echo signal in the received second digital baseband signal based on the first digital baseband signal and the plurality of filter taps of the FIR filter. The estimated digital echo signal is removed from at least one current digital baseband signal based on the down conversion of the RF signals.
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公开(公告)号：US20210336347A1
公开(公告)日：2021-10-28
申请号：US17329276
申请日：2021-05-25
Applicant: Movandi Corporation
Inventor： Seunghwan YOON , Ahmadreza ROFOUGARAN , Sam GHARAVI , Kartik SRIDHARAN , Donghyup SHIN , Farid SHIRINFAR , Stephen WU , Maryam ROFOUGARAN , Alfred Grau Besoli , Enver Adas
Abstract: An antenna system includes a first substrate, a plurality of chips and a waveguide antenna element based beam forming phased array that includes a plurality of radiating waveguide antenna cells for millimeter wave communication. Each radiating waveguide antenna cell includes a plurality of pins where a first pin is connected with a body of a corresponding radiating waveguide antenna cell and the body corresponds to ground for the pins. The first pin includes a first and a second current path, the first current path being longer than the second current path. A first end of the radiating waveguide antenna cells is mounted on the first substrate, where the plurality of chips are electrically connected with the plurality of pins and the ground of each of the plurality of radiating waveguide antenna cells.
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公开(公告)号：US20210328363A1
公开(公告)日：2021-10-21
申请号：US17365037
申请日：2021-07-01
Applicant: Movandi Corporation
Inventor： Seunghwan YOON , Ahmadreza ROFOUGARAN , Sam GHARAVI , Kartik SRIDHARAN , Donghyup SHIN , Farid SHIRINFAR , Stephen WU , Maryam ROFOUGARAN , Alfred Grau Besoli , Enver Adas , Zhihui WANG
Abstract: An antenna system, includes a first substrate, a plurality of chips, and a waveguide antenna element based beam forming phased array. The waveguide antenna element based beam forming phased array includes a plurality of radiating waveguide antenna cells. Each radiating waveguide antenna cell includes a plurality of pins that are connected to ground. A body of each radiating waveguide antenna cell corresponds to the ground. The plurality of chips are electrically connected with the plurality of pins and the ground of each of the plurality of radiating waveguide antenna cells to control beamforming through a second end of the plurality of radiating waveguide antenna cells.
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公开(公告)号：US20200212590A1
公开(公告)日：2020-07-02
申请号：US16398156
申请日：2019-04-29
Applicant: Movandi Corporation
Inventor： Ahmadreza ROFOUGARAN , Alfred Grau Besoli , Seunghwan YOON , Farid SHIRINFAR , Sam GHARAVI , Michael BOERS , Maryam ROFOUGARAN , Enver Adas , Kartik SRIDHARAN
Abstract: A communication device includes a first lens and a feeder array. The first lens has a defined shape, a base, a first tubular membrane connected to the base, and a second membrane arranged as a cap on the first tubular membrane. The feeder array includes a plurality of antenna elements that are positioned in a specified proximal distance from the base of the first lens to receive a first lens-guided beam of input radio frequency (RF) signals through the second membrane of the first lens. The first lens of the defined shape covers the feeder array as a radome enclosure. A distribution of a gain from the received first lens-guided beam of input RF signals is substantially equalized across the feeder array to increase at least a reception sensitivity of the plurality of antenna elements of the feeder array.
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Patent Agency Ranking
公开(公告)号：US20200083916A1
公开(公告)日：2020-03-12
申请号：US16684789
申请日：2019-11-15
Applicant: Movandi Corporation
Inventor： Farid SHIRINFAR , Ahmadreza ROFOUGARAN , Sam GHARAVI , Kartik SRIDHARAN , Michael BOERS , Seunghwan YOON , Donghyup SHIN , Stephen WU , Maryam ROFOUGARAN
Abstract: An outphasing calibration method in an outphasing calibration RF transmitter comprises detection of differences of a first plurality of signal characteristics of a first plurality of amplified RF signals across at least a transmitter antenna and a plurality of load impedances. The first plurality of amplified RF signals corresponds to a first plurality of constant-envelope signals. Accordingly, at least a generation of a second plurality of constant-envelope signals and at least one signal characteristic of each of a second plurality of constant-envelope RF signals on a plurality of transmission paths are controlled. At least one of a first calibration or a second calibration of a second plurality of signal characteristics of the second plurality of constant-envelope signals is executed based on the controlled generation of the second plurality of constant-envelope signals and the at least one controlled signal characteristic of each of the second plurality of constant-envelope RF signals.
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公开(公告)号：US20190356381A1
公开(公告)日：2019-11-21
申请号：US16526544
申请日：2019-07-30
Applicant: MOVANDI CORPORATION
Inventor： Sam GHARAVI , Ahmadreza ROFOUGARAN , Michael BOERS , Seunghwan YOON , Kartik SRIDHARAN , Donghyup SHIN , Farid SHIRINFAR , Stephen WU , Maryam ROFOUGARAN
IPC: H04B7/155 , H04B7/204 , H04B7/165 , H04B7/06 , H04B7/0413 , H04W52/46 , H04W52/24 , H04B17/318 , H04B7/15
Abstract: An active repeater device includes a primary sector and one or more secondary sectors, receives a first beam of input RF signals. A first set of analog baseband signals, are generated based on received first beam of input RF signals. The first set of analog baseband signals are converted to a first set of coded data signals and control information is extracted from the first set of coded data signals by decoding only a header portion of the first set of coded data signals without demodulation of data portion of the first set of coded data signals. Based on the extracted control information, the first set of coded data signals are transmitted as beams of output RF signals to remote user equipment. The transmission is independent of demodulation of the data portion within the active repeater device to reduce latency for transmission of the first set of coded data signals.
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公开(公告)号：US20230318205A1
公开(公告)日：2023-10-05
申请号：US18326222
申请日：2023-05-31
Applicant: MOVANDI CORPORATION
Inventor： Ahmadreza ROFOUGARAN , Farid SHIRINFAR , Sam GHARAVI , Michael BOERS , Seunghwan YOON , Alfred Grau Besoli , Maryam ROFOUGARAN
CPC classification number: H01Q21/24 , H01Q1/523 , H01Q1/525 , H01Q3/26 , H01Q25/001 , H01Q3/40 , H01Q3/38 , H01Q23/00
Abstract: A wireless communications system includes a first transceiver with a first phased array antenna panel having horizontal-polarization receive antennas and vertical-polarization transmit antennas, where the horizontal-polarization receive antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip, the vertical-polarization transmit antennas form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip. The wireless communications system may include a second transceiver having vertical-polarization receive antennas and horizontal-polarization transmit antennas in a second phased array antenna panel, where the vertical-polarization receive antennas form a second receive beam based on receive phase and receive amplitude information provided by a second master chip, the horizontal-polarization transmit antennas form a second transmit beam based on transmit phase and transmit amplitude information provided by the second master chip.
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公开(公告)号：US20230299500A1
公开(公告)日：2023-09-21
申请号：US18321114
申请日：2023-05-22
Applicant: Movandi Corporation
Inventor： Ahmadreza ROFOUGARAN , Alfred Grau Besoli , Seunghwan YOON , Farid SHIRINFAR , Sam GHARAVI , Michael BOERS , Maryam ROFOUGARAN , Enver Adas , Kartik SRIDHARAN
CPC classification number: H01Q19/062 , G02B27/0955 , H01Q21/0006 , H01Q15/02
Abstract: A communication device includes a system board that includes a plurality of chips. Each chip in plurality of chips includes a plurality of antennas. A system board cover coupled to system board includes a plurality of lenses. Each lens is configured to cover an antenna of plurality of antennas as a radome enclosure. Each lens includes a base and a first tubular membrane coupled to base. A second membrane is coupled to the first tubular membrane. A support structure is coupled to the first tubular membrane. The support structure facilitates coupling of plurality of lenses to system board cover. The system board cover includes a feeder array that includes a plurality of antenna elements that are positioned at a proximal distance from base of a lens and the proximal distance of the system board from the base of the lens is less than a focal length of the lens.
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公开(公告)号：US20210211183A1
公开(公告)日：2021-07-08
申请号：US17209030
申请日：2021-03-22
Applicant: Movandi Corporation
Inventor： Sam GHARAVI , Ahmadreza ROFOUGARAN , Michael BOERS , Seunghwan YOON , Kartik SRIDHARAN , Donghyup SHIN , Farid SHIRINFAR , Stephen WU , Maryam ROFOUGARAN
IPC: H04B7/155 , H04B7/204 , H04B7/165 , H04W52/24 , H04B7/06 , H04W52/46 , H04B17/318 , H04B7/0413 , H04B7/15
Abstract: An active repeater device including a first antenna array, a controller, and one or more secondary sectors receives or transmits a first beam of input RF signals from or to, respectively, a first base station operated by a first service provider and a second beam of input RF signals from or to, respectively, a second base station operated by a second service provider. A controller assigns a first beam setting to a first group of customer premises equipment (CPEs) and a second beam setting to a second group of CPEs, based on one or more corresponding signal parameters associated with the each corresponding group of CPEs. A second antenna array of the second RH unit concurrently transmits or received a first beam of output RF signals to or from the first group of CPEs and a second beam of output RF signals to the second group of CPEs.
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