Patents Assigned to Akash Systems, Inc.
  • Patent number: 11495515
    Abstract: Aspects of wireless communication are described, including a radiofrequency (RF) amplifier chip, configured for transmitting or receiving data, comprising a first substrate comprising a first material and a second substrate comprising a second material that is different from the first material. The first substrate and the second substrate may be lattice-matched such that an interface region between the first substrate and the second substrate exhibits an sp3 carbon peak at about 1332 cm·1 having a full width half maximum of no more than 5.0 cm·1 as measured by Raman spectroscopy. In some aspects, the first substrate and said second substrate permit said chip to transmit or receive data at a transfer rate of at least 500 megabits per second and a frequency of at least 8 GHz. In some aspects, the RF amplifier chip is part of a satellite transmitter.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 8, 2022
    Assignee: AKASH SYSTEMS, INC.
    Inventors: Tyrone D. Mitchell, Jr., Felix Ejeckam, Daniel Francis, Paul Saunier, Kris Kong
  • Patent number: 10985082
    Abstract: Aspects of wireless communication are described, including a radiofrequency (RF) amplifier chip, configured for transmitting or receiving data, comprising a first substrate comprising a first material and a second substrate comprising a second material that is different from the first material. The first substrate and the second substrate may be lattice-matched such that an interface region between the first substrate and the second substrate exhibits an sp3 carbon peak at about 1332 cm·1 having a full width half maximum of no more than 5.0 cm·1 as measured by Raman spectroscopy. In some aspects, the first substrate and said second substrate permit said chip to transmit or receive data at a transfer rate of at least 500 megabits per second and a frequency of at least 8 GHz. In some aspects, the RF amplifier chip is part of a satellite transmitter.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: April 20, 2021
    Assignee: Akash Systems, Inc.
    Inventors: Tyrone D. Mitchell, Jr., Felix Ejeckam, Daniel Francis, Paul Saunier, Kris Kong
  • Patent number: 10811335
    Abstract: A high efficiency satellite transmitter comprises an RF amplifier chip in thermal contact with a radiant cooling element via a heat conducting element. The RF amplifier chip comprises an active layer disposed on a high thermal conductivity substrate having a thermal conductivity greater than about 1000 W/mK, maximizing heat conduction out of the RF amplifier chip and ultimately into outer space when the chip is operating within a satellite under normal transmission conditions. In one embodiment, the active layer comprises materials selected from the group consisting of GaN, InGaN, AlGaN, and InGaAlN alloys. In one embodiment, the high thermal conductivity substrate comprises synthetic diamond.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: October 20, 2020
    Assignee: Akash Systems, Inc.
    Inventors: Felix Ejeckam, Tyrone D. Mitchell, Jr., Paul Saunier
  • Patent number: 10804853
    Abstract: An RF amplifier module comprises a package having a package base, at least one RF amplifier chip attached to the package base, and an RF power combiner chip attached to the package base. The RF amplifier chip comprises a substrate and at least one transistor disposed on an epilayer overlying the substrate. The substrate comprises a first layer of synthetic diamond characterized by an average value of thermal conductivity. An RF amplifier module comprises a package having a package base, at least one RF amplifier chip attached to the package base, and an RF power combiner chip attached to the package base. The RF amplifier chip comprises a substrate and at least one transistor disposed on an epilayer overlying the substrate. A first layer of synthetic diamond is at least partially disposed on top of the electronic device.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: October 13, 2020
    Assignee: Akash Systems, Inc.
    Inventors: Felix Ejeckam, Tyrone D. Mitchell, Jr., Paul Saunier
  • Patent number: 10374553
    Abstract: An RF amplifier module comprises a package having a package base, at least one RF amplifier chip attached to the package base, and an RF power combiner chip attached to the package base. The RF amplifier chip comprises a substrate and at least one transistor disposed on an epilayer overlying the substrate. The substrate comprises a first layer of synthetic diamond characterized by an average value of thermal conductivity. An RF amplifier module comprises a package having a package base, at least one RF amplifier chip attached to the package base, and an RF power combiner chip attached to the package base. The RF amplifier chip comprises a substrate and at least one transistor disposed on an epilayer overlying the substrate. A first layer of synthetic diamond is at least partially disposed on top of the electronic device.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: August 6, 2019
    Assignee: Akash Systems, Inc.
    Inventors: Felix Ejeckam, Tyrone D Mitchell, Jr., Paul Saunier
  • Patent number: 10332820
    Abstract: A high efficiency satellite transmitter comprises an RF amplifier chip in thermal contact with a radiant cooling element via a heat conducting element. The RF amplifier chip comprises an active layer disposed on a high thermal conductivity substrate having a thermal conductivity greater than about 1000 W/mK, maximizing heat conduction out of the RF amplifier chip and ultimately into outer space when the chip is operating within a satellite under normal transmission conditions. In one embodiment, the active layer comprises materials selected from the group consisting of GaN, InGaN, AlGaN, and InGaAlN alloys. In one embodiment, the high thermal conductivity substrate comprises synthetic diamond.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: June 25, 2019
    Assignee: Akash Systems, Inc.
    Inventors: Felix Ejeckam, Tyrone D Mitchell, Jr., Paul Saunier