Patents by Inventor Ahmadreza Rofougaran

Ahmadreza Rofougaran has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220416446
    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.
    Type: Application
    Filed: September 6, 2022
    Publication date: December 29, 2022
    Inventors: Ahmadreza ROFOUGARAN, Farid SHIRINFAR, Sam GHARAVI, Michael BOERS, Seunghwan YOON, Alfred Grau Besoli, Maryam ROFOUGARAN
  • Patent number: 11539143
    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.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: December 27, 2022
    Assignee: Movandi Corporation
    Inventors: Seunghwan Yoon, Ahmadreza Rofougaran, Sam Gharavi, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran, Alfred Grau Besoli, Enver Adas, Zhihui Wang
  • Publication number: 20220393757
    Abstract: An active repeater device includes a primary sector and at least a secondary sector communicatively coupled to the primary sector receives or transmits a first beam of input RF signals having a first beam pattern from or to a base station, respectively. The primary sector includes an baseband signal processor and a first radio head (RH) unit. The secondary sector comprises a second RH unit. Beamforming coefficients are generated to convert the first beam pattern of the first beam of input RF signals to a second beam pattern based on a location of each of a plurality of user equipment (UEs). A second beam of output RF signals in the second beam pattern is transmitted from or received by, respectively, the secondary sector to or from, respectively, the plurality of UEs based on the generated beamforming coefficients and the received first beam of input RF signals.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Sam GHARAVI, Ahmadreza ROFOUGARAN, Michael BOERS, Seunghwan YOON, Kartik SRIDHARAN, Donghyup SHIN, Farid SHIRINFAR, Stephen WU, Maryam ROFOUGARAN
  • Publication number: 20220393758
    Abstract: A repeater device includes a first antenna array having a plurality of antenna configuration modes, where each mode defines a unique configuration of one or more sub-arrays of a plurality of different sub-arrays of the first antenna array. The repeater device further includes control circuitry configured to select one of the plurality of antenna configuration modes and based on the selected one of the plurality of antenna configuration modes, activate a first set of antenna elements of the first antenna array and deactivate a second set of antenna elements of the first antenna array. The first set of antenna elements corresponds to a first configuration of one or more sub-arrays of the first antenna array. A beam of RF signal is directed to a user equipment from the first configuration of the one or more sub-arrays of the first antenna array.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Alfred Grau Besoli, Ahmadreza Rofougaran, Brima Ibrahim, Farid SHIRINFAR, Maryam ROFOUGARAN, Nemat Dolatsha, Yifan Wang
  • Patent number: 11509066
    Abstract: Provided is an apparatus including a plurality of antenna modules and a printed circuit board (PCB) having a plurality of holes embedded with a heat sink. Each antenna module includes an antenna substrate, a plurality of three-dimensional (3-D) antenna cells mounted on a first surface of the antenna substrate, and a plurality of packaged circuitry mounted on a second surface of the antenna substrate. The plurality of packaged circuitry are electrically connected with the plurality of 3-D antenna cells. Each antenna module is mounted on the plurality of holes via a corresponding packaged circuitry of the plurality of packaged circuitry.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: November 22, 2022
    Assignee: SILICON VALLEY BANK
    Inventors: Seunghwan Yoon, Franco De Flaviis, Alfred Grau Besoli, Kartik Sridharan, Ahmadreza Rofougaran, Michael Boers, Sam Gharavi, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Patent number: 11509067
    Abstract: An apparatus comprising at least a plurality of antenna modules mounted on a printed circuit board (PCB) is disclosed. The PCB includes a plurality of holes embedded with a heat sink. Each antenna module comprises an antenna substrate. Each antenna module further comprises a plurality of three-dimensional (3-D) antenna cells that are mounted on a first surface of the antenna substrate. Each antenna module further comprises a plurality of packaged circuitry that are mounted on a second surface of the antenna substrate. The plurality of packaged circuitry are electrically connected with the plurality of 3-D antenna cells. Furthermore, each antenna module is mounted on the plurality of holes via a corresponding packaged circuitry of the plurality of packaged circuitry.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 22, 2022
    Assignee: Movandi Corporation
    Inventors: Seunghwan Yoon, Zhihui Wang, Franco De Flaviis, Alfred Grau Besoli, Kartik Sridharan, Ahmadreza Rofougaran, Michael Boers, Sam Gharavi, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Publication number: 20220368407
    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.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 17, 2022
    Inventors: Sam GHARAVI, Ahmadreza ROFOUGARAN, Michael BOERS, Seunghwan YOON, Kartik SRIDHARAN, Donghyup SHIN, Farid SHIRINFAR, Stephen WU, Maryam ROFOUGARAN
  • Patent number: 11502425
    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.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: November 15, 2022
    Assignee: SILICON VALLEY BANK
    Inventors: Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Seunghwan Yoon, Alfred Grau Besoli, Maryam Rofougaran
  • Patent number: 11502417
    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.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: November 15, 2022
    Assignee: MOVANDI CORPORATION
    Inventors: Seunghwan Yoon, Ahmadreza Rofougaran, Sam Gharavi, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran, Alfred Grau Besoli, Enver Adas
  • Patent number: 11502424
    Abstract: A wireless communications system includes a first transceiver with a first phased array antenna panel having circularly polarization receive antennas and circularly polarization transmit antennas, where the circularly polarization receive antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip, the circularly polarization transmit antennas form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: November 15, 2022
    Assignee: SILICON VALLEY BANK
    Inventors: Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Seunghwan Yoon, Alfred Grau Besoli, Maryam Rofougaran
  • Patent number: 11496207
    Abstract: An active repeater device includes a primary sector and at least a secondary sector communicatively coupled to the primary sector receives or transmits a first beam of input RF signals having a first beam pattern from or to a base station, respectively. The primary sector includes an baseband signal processor and a first radio head (RH) unit. The secondary sector comprises a second RH unit. The first beam pattern covers a first geographical area. Beamforming coefficients are generated to convert the first beam pattern of the first beam of input RF signals to a second beam pattern. A second beam of output RF signals in the second beam pattern is transmitted from or received by, respectively, the secondary sector to or from, respectively, a plurality of user equipment (UEs) based on the generated beamforming coefficients and the received first beam of input RF signals.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: November 8, 2022
    Assignee: Movandi Corporation
    Inventors: Sam Gharavi, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Patent number: 11476590
    Abstract: An apparatus comprising at least a plurality of antenna modules mounted on a printed circuit board (PCB) is disclosed. The PCB includes a plurality of holes embedded with a heat sink. Each antenna module comprises an antenna substrate. Each antenna module further comprises a plurality of three-dimensional (3-D) antenna cells that are mounted on a first surface of the antenna substrate. Each antenna module further comprises a plurality of packaged circuitry that are mounted on a second surface of the antenna substrate. The plurality of packaged circuitry are electrically connected with the plurality of 3-D antenna cells. Furthermore, each antenna module is mounted on the plurality of holes via a corresponding packaged circuitry of the plurality of packaged circuitry.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: October 18, 2022
    Assignee: Movandi Corporation
    Inventors: Seunghwan Yoon, Zhihui Wang, Franco De Flaviis, Alfred Grau Besoli, Kartik Sridharan, Ahmadreza Rofougaran, Michael Boers, Sam Gharavi, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Patent number: 11469521
    Abstract: Provided is an apparatus including a plurality of antenna modules and a printed circuit board (PCB) having a plurality of holes embedded with a heat sink. Each antenna module includes an antenna substrate, a plurality of three-dimensional (3-D) antenna cells mounted on a first surface of the antenna substrate, and a plurality of packaged circuitry mounted on a second surface of the antenna substrate. The plurality of packaged circuitry are electrically connected with the plurality of 3-D antenna cells. Each antenna module is mounted on the plurality of holes via a corresponding packaged circuitry of the plurality of packaged circuitry.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: October 11, 2022
    Assignee: SILICON VALLEY BANK
    Inventors: Seunghwan Yoon, Franco De Flaviis, Alfred Grau Besoli, Kartik Sridharan, Ahmadreza Rofougaran, Michael Boers, Sam Gharavi, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Patent number: 11469522
    Abstract: A wireless communications system includes a first transceiver with a first phased array antenna panel having circularly polarization receive antennas and circularly polarization transmit antennas, where the circularly polarization receive antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip, the circularly polarization transmit antennas form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 11, 2022
    Assignee: SILICON VALLEY BANK
    Inventors: Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Seunghwan Yoon, Alfred Grau Besoli, Maryam Rofougaran
  • Patent number: 11469523
    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.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 11, 2022
    Assignee: SILICON VALLEY BANK
    Inventors: Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Seunghwan Yoon, Alfred Grau Besoli, Maryam Rofougaran
  • Patent number: 11470612
    Abstract: A communication device initiates beam acquisition in a receive-only mode. Beam reception is set to an omni mode in which different beams of RF signals are receivable at the communication device from different directions. A primary signal synchronization (PSS) search is executed from each signal synchronization block location based on control information acquired directly from a first base station over a long-term evolution (LTE) control plane link or from a customer premise equipment (CPE) or user equipment (UE) that is in a radio resource control (RRC) connected state. The communication of the beam of RF signals that has highest received signal strength is activated in a new radio (NR) frequency to the UE or the CPE based on at least a PSS detected in the PSS search, for low-latency non-standalone access to the beam of RF signals in NR frequency at the UE or the CPE.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 11, 2022
    Assignee: MOVANDI CORPORATION
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran, Sam Gharavi
  • Patent number: 11463155
    Abstract: An active repeater device includes a primary sector and at least a secondary sector communicatively coupled to the primary sector receives or transmits a first beam of input RF signals having a first beam pattern from or to a base station, respectively. The primary sector includes an baseband signal processor and a first radio head (RH) unit. The secondary sector comprises a second RH unit. The first beam pattern covers a first geographical area. Beamforming coefficients are generated to convert the first beam pattern of the first beam of input RF signals to a second beam pattern. A second beam of output RF signals in the second beam pattern is transmitted from or received by, respectively, the secondary sector to or from, respectively, a plurality of user equipment (UEs) based on the generated beamforming coefficients and the received first beam of input RF signals.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 4, 2022
    Assignee: Movandi Corporation
    Inventors: Sam Gharavi, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Patent number: 11463154
    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.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: October 4, 2022
    Assignee: Movandi Corporation
    Inventors: Sam Gharavi, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
  • Publication number: 20220294522
    Abstract: An integrated repeater system that includes a repeater device having a first surface and a second surface that is opposite to the first surface. The repeater device further comprises phased array antenna receivers arranged on the first surface and receives a mmWave radio frequency signal from a base station, and one or more phased array antenna transmitters arranged on the second surface and transmits the received mmWave radio frequency signal through a glass structure to a user equipment. The integrated repeater system further comprises an impedance matching component between the second surface and the glass structure. Further, an impedance of the one or more phased array antenna transmitters is tuned in accordance with the glass structure based on the impedance matching component.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 15, 2022
    Inventors: Ahmadreza Rofougaran, Alfred Grau Besoli
  • Publication number: 20220294124
    Abstract: An antenna device includes a first patch radiator and a second patch radiator arranged over the first patch radiator. The antenna device further includes a central ground pin connected substantially at a center portion of the first patch radiator. The antenna device further includes a plurality of conductive feeding pins connected to the first patch radiator and separated by at least one slot of a plurality of slots provides in the first patch radiator. The antenna device further includes a cell structure having a cavity that includes a polygonal-shaped base and a metallic fence arranged at four or more side walls of the cavity. The first patch radiator and the second patch radiators are arranged in the cavity of the cell structure and are at least partially surrounded by the metallic fence such that a plurality of antenna control parameters are decoupled from each other.
    Type: Application
    Filed: October 5, 2021
    Publication date: September 15, 2022
    Inventors: Nemat Dolatsha, Alfred Grau Besoli, Yifan Wang, Maryam Rofougaran, Ahmadreza Rofougaran