Patents by Inventor Bagher Afshar

Bagher Afshar 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: 20240079774
    Abstract: In an embodiment, an apparatus includes a first digital beamformer (DBF) associated with a first subset of antennas of a phased array antenna, the first DBF including a transmit section associated with transmission of a first signal at a first frequency in a transmit mode and a receive section associated with receiving of a second signal at a second frequency in a receive mode, the second frequency being different from the first frequency. The apparatus includes a second DBF associated with a second subset of antennas of the phased array antenna. The first and second DBFs are configured to receive a local oscillator signal having the first frequency from a common local oscillator in the transmit mode and receive the local oscillator signal having the second frequency from the common local oscillator in the receive mode.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 7, 2024
    Inventors: Masoud Kahrizi, Alex Ahmad Mirzaei, Ali Sajjadi, Bagher Afshar, Babak Vakili-Amini, Alireza Mehrnia, Behzad Nourani, Bernd Pregardier
  • Publication number: 20240039568
    Abstract: In an embodiment, a receiver included in a communications system is configured to receive a radio frequency (RF) signal from a phased array antenna, the RF signal comprising at least a portion of a plurality of data beams included in a single channel, generate a plurality of channel signals based on the RF signal. Generating the plurality of channel signals includes separating the RF signal into a plurality of channels in which each channel of the plurality of channels includes at least a portion of a respective subset of the plurality of data beams. The receiver is further configured to decode each data beam of the plurality of channel signals with a respective phase and a respective time delay. The receiver is further configured to output the plurality of data beams of the plurality of channels.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
  • Patent number: 11855362
    Abstract: In an embodiment, a device is included in a communications system, the device including a plurality of antenna elements configured in a phased array antenna; a plurality of integrated circuit (IC) chips, wherein each IC chip of the plurality of IC chips is associated with a respective subset of antenna elements of the plurality of antenna elements, and wherein, for each IC chip of the plurality of IC chips, the associated subset of antenna elements is used for transmitting and receiving radio frequency (RF) signals by the IC chip; and a local oscillator configured to generate a common local oscillator signal and provide the common local oscillator signal to each IC chip of the plurality of IC chips.
    Type: Grant
    Filed: May 3, 2020
    Date of Patent: December 26, 2023
    Assignee: Space Exploration Technologies Corp.
    Inventors: Masoud Kahrizi, Alex Ahmad Mirzaei, Ali Sajjadi, Bagher Afshar, Babak Vakili-Amini, Alireza Mehrnia, Behzad Nourani, Bernd Pregardier
  • Patent number: 11817894
    Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: November 14, 2023
    Assignee: Space Exploration Technologies Corp.
    Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
  • Publication number: 20230006706
    Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 5, 2023
    Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
  • Patent number: 11483021
    Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: October 25, 2022
    Assignee: Space Exploration Technologies Corp.
    Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
  • Publication number: 20210194524
    Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Applicant: Space Exploration Technologies Corp.
    Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
  • Patent number: 10944442
    Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; a plurality of phase shifters electrically coupled to the channel extractor and configured to decode each data signal of the plurality of data signals with a respective phase; and a plurality of time delay filters electrically coupled to the plurality of phase shifters and configured to decode each data signal of the plurality of data signals with a respective time delay, wherein the plurality of time delay filters outputs each subset of the plurality of data signals in a respective channel of the plurality of channels.
    Type: Grant
    Filed: May 3, 2020
    Date of Patent: March 9, 2021
    Assignee: Space Exploration Technologies Corp.
    Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
  • Patent number: 10873138
    Abstract: A system and apparatus is provided to reduce signal routing, area and signal loss in double-pole, double-throw (DPDT) switch implementations in wireless and millimeter-wave front ends. A cyclic staggered arrangement of receivers, transmitters and antenna ports connecting with DPDT switches reduce signal cross-over and allow for compact, low-loss multi-antenna configurations.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: December 22, 2020
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Bevin George Perumana, Seunghwan Yoon, Bagher Afshar, Saikat Sarkar, Ehsan Adabi Firouzjaei, Michael John Inglis Boers, Jesus Alfonso Castaneda, Tirdad Sowlati
  • Publication number: 20200388916
    Abstract: In an embodiment, a device is included in a communications system, the device including a plurality of antenna elements configured in a phased array antenna; a plurality of integrated circuit (IC) chips, wherein each IC chip of the plurality of IC chips is associated with a respective subset of antenna elements of the plurality of antenna elements, and wherein, for each IC chip of the plurality of IC chips, the associated subset of antenna elements is used for transmitting and receiving radio frequency (RF) signals by the IC chip; and a local oscillator configured to generate a common local oscillator signal and provide the common local oscillator signal to each IC chip of the plurality of IC chips.
    Type: Application
    Filed: May 3, 2020
    Publication date: December 10, 2020
    Applicant: Space Exploration Technologies Corp.
    Inventors: Masoud Kahrizi, Alex Ahmad Mirzaei, Ali Sajjadi, Bagher Afshar, Babak Vakili-Amini, Alireza Mehrnia, Behzad Nourani, Bernd Pregardier
  • Publication number: 20180241137
    Abstract: A system and apparatus is provided to reduce signal routing, area and signal loss in double-pole, double-throw (DPDT) switch implementations in wireless and millimeter-wave front ends. A cyclic staggered arrangement of receivers, transmitters and antenna ports connecting with DPDT switches reduce signal cross-over and allow for compact, low-loss multi-antenna configurations.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd .
    Inventors: Bevin George Perumana, Seunghwan Yoon, Bagher Afshar, Saikat Sarkar, Ehsan Adabi Firouzjaei, Michael John Inglis Boers, Jesus Alfonso Castaneda, Tirdad Sowlati
  • Patent number: 10020555
    Abstract: An electronic device includes circuitry configured to determine an antenna operation mode for one or more antenna arrays. The circuitry is further configured to control the one or more antenna arrays to operate in a combined antenna mode via a Wilkinson combiner. The circuitry is also configured to control the one or more antenna arrays to operate in an isolated antenna mode via a single-pole, multi-throw switch.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 10, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Saikat Sarkar, Seunghwan Yoon, Bagher Afshar, Michael Boers, Jesus Castaneda, Tirdad Sowlati
  • Patent number: 9985357
    Abstract: A system and apparatus is provided to reduce signal routing, area and signal loss in double-pole, double-throw (DPDT) switch implementations in wireless and millimeter-wave front ends. A staggered arrangement of receivers, transmitters and antenna ports connecting with DPDT switches reduce signal cross-over and allow for compact, low-loss multi-antenna configurations.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: May 29, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD
    Inventors: Bevin George Perumana, Seunghwan Yoon, Bagher Afshar, Saikat Sarkar, Ehsan Adabi Firouzjaei, Michael John Inglis Boers, Jesus Alfonso Castaneda, Tirdad Sowlati
  • Patent number: 9860760
    Abstract: A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (RFICs) and at least one secondary RFIC. Each of the one or more primary RFICs is configured to receive an intermediate frequency (IF) signal from a baseband processor, upconvert the IF signal to a radio frequency (RF) signal, and transmit the RF signal to one or more secondary RFICs. The secondary RFICs under each of the one or more primary RFICs are configured to receive the RF signal from the corresponding primary RFIC, phase shift and amplify the RF signal, and transmit the RF signal via a plurality of antenna elements.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 2, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Alireza Tarighat Mehrabani, Michael Boers, Masoud Kahrizi, Tirdad Sowlati, Bagher Afshar, Payam Torab Jahromi, Sean Timothy Nicolson, Brima Babatunde Ibrahim
  • Publication number: 20170047667
    Abstract: An electronic device includes circuitry configured to determine an antenna operation mode for one or more antenna arrays. The circuitry is further configured to control the one or more antenna arrays to operate in a combined antenna mode via a Wilkinson combiner. The circuitry is also configured to control the one or more antenna arrays to operate in an isolated antenna mode via a single-pole, multi-throw switch.
    Type: Application
    Filed: September 15, 2015
    Publication date: February 16, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: Saikat SARKAR, Seunghwan YOON, Bagher AFSHAR, Michael BOERS, Jesus CASTANEDA, Tirdad SOWLATI
  • Publication number: 20160150542
    Abstract: A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (RFICs) and at least one secondary RFIC. Each of the one or more primary RFICs is configured to receive an intermediate frequency (IF) signal from a baseband processor, upconvert the IF signal to a radio frequency (RF) signal, and transmit the RF signal to one or more secondary RFICs. The secondary RFICs under each of the one or more primary RFICs are configured to receive the RF signal from the corresponding primary RFIC, phase shift and amplify the RF signal, and transmit the RF signal via a plurality of antenna elements.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 26, 2016
    Inventors: Alireza TARIGHAT MEHRABANI, Michael BOERS, Masoud KAHRIZI, Tirdad SOWLATI, Bagher AFSHAR, Payam TORAB JAHROMI, Sean Timothy NICOLSON, Brima Babatunde IBRAHIM
  • Publication number: 20150123873
    Abstract: A system and apparatus is provided to reduce signal routing, area and signal loss in double-pole, double-throw (DPDT) switch implementations in wireless and millimeter-wave front ends. A staggered arrangement of receivers, transmitters and antenna ports connecting with DPDT switches reduce signal cross-over and allow for compact, low-loss multi-antenna configurations.
    Type: Application
    Filed: December 13, 2013
    Publication date: May 7, 2015
    Inventors: Bevin George Perumana, Seunghwan Yoon, Bagher Afshar, Saikat Sarkar, Ehsan Adabi Firouzjaei, Michael John Inglis Boers, Jesus Alfonso Castaneda, Tirdad Sowlati
  • Patent number: 8838036
    Abstract: A transceiver circuit includes a transmitter to send communication signals and a receiver to receive communication signals sent by other transmitters. The transceiver circuit also includes a switch to connect the transmitter and the receiver to at least one antenna. The switch controls at least two directions of polarization of the at least one antenna.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Seunghwan Yoon, Bagher Afshar, Jesus Alfonso Castaneda, Brima Ibrahim, Michael Boers
  • Publication number: 20130072125
    Abstract: A transceiver circuit includes a transmitter to send communication signals and a receiver to receive communication signals sent by other transmitters. The transceiver circuit also includes a switch to connect the transmitter and the receiver to at least one antenna. The switch controls at least two directions of polarization of the at least one antenna.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Applicant: Broadcom Corporation
    Inventors: Seunghwan Yoon, Bagher Afshar, Jesus Alfonso Castaneda, Brima Ibrahim, Michael Boers