Patents by Inventor Michael David Hill

Michael David Hill 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).

  • Radiofrequency component incorporating temperature compensated dielectric material
    Patent number: 11306032
    Abstract: Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient, making them advantageous for applications that experience temperature changes and gradients. In particular, tantalum can be substituted into the crystal structure to improve properties. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: April 19, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill
  • High Q modified barium tantalate for high frequency applications
    Patent number: 11274046
    Abstract: Disclosed are embodiments of a barium magnesium tantalate including additional components to increase the Q value of the material. In some embodiments, complex tungsten oxides and/or hexagonal perovskite crystal structures can be added into the barium magnesium tantalate to provide for advantageous properties. In some embodiments, no tin is used in the formation of the material.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 15, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill
  • Radiofrequency and other electronic devices formed from enhanced resonant frequency hexaferrite materials
    Patent number: 11245169
    Abstract: Radiofrequency and other electronic devices can be formed from textured hexaferrite materials, such as Z-phase barium cobalt ferrite Ba3Co2Fe24O41 (Co2Z) having enhanced resonant frequency. The textured hexaferrite material can be formed by sintering fine grain hexaferrite powder at a lower temperature than conventional firing temperatures to inhibit reduction of iron. The textured hexaferrite material can be used in radiofrequency devices such as circulators or telecommunications systems.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: February 8, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill
  • LOW TEMPERATURE CO-FIREABLE DIELECTRIC MATERIALS
    Publication number: 20220029263
    Abstract: Disclosed herein are embodiments of low temperature co-fireable dielectric materials which can be used in conjunction with high dielectric materials to form composite structures, in particular for isolators and circulators for radiofrequency components. Embodiments of the low temperature co-fireable dielectric materials can be scheelite or garnet structures, for example barium tungstate. Adhesives and/or glue is not necessary for the formation of the isolators and circulators.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 27, 2022
    Inventors: Michael David Hill, Jianzhong Jiang, Jeffrey Alan Shunkwiler, Neil Bruce Coats, David Martin Firor, David Bowie Cruickshank
  • INCREASED RESONANT FREQUENCY POTASSIUM-DOPED HEXAGONAL FERRITE
    Publication number: 20220013263
    Abstract: Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material and methods of manufacturing. The hexagonal ferrite material can be Y-phase strontium hexagonal ferrite material. In some embodiments, strontium can be substituted out for a trivalent or tetravalent ion composition including potassium, thereby providing for advantageous properties.
    Type: Application
    Filed: September 23, 2021
    Publication date: January 13, 2022
    Inventor: Michael David Hill
  • MODIFIED NI-ZN FERRITES FOR RADIOFREQUENCY APPLICATIONS
    Publication number: 20220006174
    Abstract: Embodiments disclosed herein relate to using cobalt (Co) to fine tune the magnetic properties, such as permeability and magnetic loss, of nickel-zinc ferrites to improve the material performance in electronic applications. The method comprises replacing nickel (Ni) with sufficient Co+2 such that the relaxation peak associated with the Co+2 substitution and the relaxation peak associated with the nickel to zinc (Ni/Zn) ratio are into near coincidence. When the relaxation peaks overlap, the material permeability can be substantially maximized and magnetic loss substantially minimized. The resulting materials are useful and provide superior performance particularly for devices operating at the 13.56 MHz ISM band.
    Type: Application
    Filed: August 9, 2021
    Publication date: January 6, 2022
    Inventors: Michael David Hill, David Bowie Cruickshank, Kelvin Mitchell Anderson
  • MAGNETODIELECTRIC Y-PHASE STRONTIUM HEXAGONAL FERRITE MATERIALS FORMED BY SODIUM SUBSTITUTION
    Publication number: 20210366634
    Abstract: Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material and methods of manufacturing. The hexagonal ferrite material can be Y-phase strontium hexagonal ferrite material. In some embodiments, sodium can be added into the crystal structure of the hexagonal ferrite material in order to achieve high resonance frequencies while maintaining high permeability.
    Type: Application
    Filed: March 16, 2021
    Publication date: November 25, 2021
    Inventor: Michael David Hill
  • INCREASED RESONANT FREQUENCY ALKALI-DOPED Y-PHASE HEXAGONAL FERRITES
    Publication number: 20210343455
    Abstract: Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material, such as Y-phase hexagonal ferrite material, and methods of manufacturing. In some embodiments, sodium or potassium can be added into the crystal structure of the hexagonal ferrite material in order to achieve improved resonant frequencies in the range of 500 MHz to 1 GHz useful for radiofrequency applications.
    Type: Application
    Filed: April 14, 2021
    Publication date: November 4, 2021
    Inventor: Michael David Hill
  • Increased resonant frequency potassium-doped hexagonal ferrite
    Patent number: 11164689
    Abstract: Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material and methods of manufacturing. The hexagonal ferrite material can be Y-phase strontium hexagonal ferrite material. In some embodiments, strontium can be substituted out for a trivalent or tetravalent ion composition including potassium, thereby providing for advantageous properties.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 2, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill
  • COMPOSITE HEXAGONAL FERRITE MATERIALS
    Publication number: 20210323873
    Abstract: Disclosed herein are embodiments of composite hexagonal ferrite materials formed from a combination of Y phase and Z phase hexagonal ferrite materials. Advantageously, embodiments of the material can have a high resonant frequency as well as a high permeability. In some embodiments, the materials can be useful for magnetodielectric antennas.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 21, 2021
    Inventors: Michael David Hill, Srinivas Polisetty, Constance M. Griffith
  • ULTRA-HIGH DIELECTRIC CONSTANT GARNET
    Publication number: 20210317044
    Abstract: Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. Accordingly, embodiments of the disclosed materials can be used in high frequency applications, such as in base station antennas.
    Type: Application
    Filed: April 30, 2021
    Publication date: October 14, 2021
    Inventors: David Bowie Cruickshank, Michael David Hill
  • INCORPORATION OF OXIDES INTO FERRITE MATERIAL FOR IMPROVED RADIO RADIOFREQUENCY PROPERTIES
    Publication number: 20210304928
    Abstract: Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material and methods of manufacturing. The hexagonal ferrite material can be Y-phase hexagonal ferrite material, such as those including strontium. In some embodiments, oxides consistent with the stoichiometry of Sr3Co2Fe24O41, SrFe12O19 or CoFe2O4 can be used form an enhanced hexagonal ferrite material.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 30, 2021
    Inventor: Michael David Hill
  • SUBSTITUTED ALUMINUM NITRIDE FOR IMPROVED ACOUSTIC WAVE FILTERS
    Publication number: 20210280771
    Abstract: An acoustic wave resonator comprises a piezoelectric material formed of aluminum nitride (AlN) doped with calcium (Ca) to enhance performance of the acoustic wave resonator.
    Type: Application
    Filed: May 5, 2021
    Publication date: September 9, 2021
    Inventors: Michael David Hill, Peter Ledel Gammel
  • ALUMINUM NITRIDE DOPANT SCHEME FOR BULK ACOUSTIC WAVE FILTERS
    Publication number: 20210273625
    Abstract: Disclosed is an acoustic wave resonator comprising a substrate material formed of aluminum nitride (AlN) doped with one or more of beryllium (Be), strontium (Sr), and sodium (Na) to enhance performance of the acoustic wave resonator.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Inventor: Michael David Hill
  • Modified Ni—Zn ferrites for radiofrequency applications
    Patent number: 11088435
    Abstract: Embodiments disclosed herein relate to using cobalt (Co) to fine tune the magnetic properties, such as permeability and magnetic loss, of nickel-zinc ferrites to improve the material performance in electronic applications. The method comprises replacing nickel (Ni) with sufficient Co+2 such that the relaxation peak associated with the Co+2 substitution and the relaxation peak associated with the nickel to zinc (Ni/Zn) ratio are into near coincidence. When the relaxation peaks overlap, the material permeability can be substantially maximized and magnetic loss substantially minimized. The resulting materials are useful and provide superior performance particularly for devices operating at the 13.56 MHz ISM band.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 10, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Michael David Hill, David Bowie Cruickshank, Kelvin Mitchell Anderson
  • Low temperature co-fireable dielectric materials
    Patent number: 11081770
    Abstract: Disclosed herein are embodiments of low temperature co-fireable dielectric materials which can be used in conjunction with high dielectric materials to form composite structures, in particular for isolators and circulators for radiofrequency components. Embodiments of the low temperature co-fireable dielectric materials can be scheelite or garnet structures, for example barium tungstate. Adhesives and/or glue is not necessary for the formation of the isolators and circulators.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: August 3, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Michael David Hill, Jianzhong Jiang, Jeffrey Alan Shunkwiler, Neil Bruce Coats, David Martin Firor, David Bowie Cruickshank
  • Modified Z-type hexagonal ferrite materials with enhanced resonant frequency
    Patent number: 11069983
    Abstract: Disclosed herein are embodiments of modified z-type hexagonal ferrite materials having improved properties that are advantageous for radiofrequency applications, in particular high frequency ranges for antennas and other devices. Atomic substitution of strontium, aluminum, potassium, and trivalent ions can be used to replace certain atoms in the ferrite crystal structure to improve loss factor at high frequencies.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 20, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill
  • Substituted aluminum nitride for improved acoustic wave filters
    Patent number: 11031540
    Abstract: A piezoelectric material comprises AlN doped with cations of one or more elements selected from the group consisting of: one of Sb, Ta, Nb, or Ge; Cr in combination with one or more of B, Sc, Y, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Yb; one of Nb and Ta in combination with one of Li, Mg, Ca, Ni, Co, and Zn; Ca in combination with one of Si, Ge, Ti, Zr, and Hf; Mg in combination with one of Si, Ge, and Ti; and one or more of Co, Sb, Ta, Nb, Si, or Ge in combination with one or more of Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Yb. The cations at least partially substitute for Al in the crystal structure of the piezoelectric material.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: June 8, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Michael David Hill, Peter Ledel Gammel
  • Ultra-high dielectric constant garnet
    Patent number: 11021400
    Abstract: Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. Accordingly, embodiments of the disclosed materials can be used in high frequency applications, such as in base station antennas.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: June 1, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: David Bowie Cruickshank, Michael David Hill
  • Method for forming a temperature compensated dielectric material
    Patent number: 11021403
    Abstract: Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient, making them advantageous for applications that experience temperature changes and gradients. In particular, tantalum can be substituted into the crystal structure to improve properties. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: June 1, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill