Patents by Inventor Matthew A. Franzi
Matthew A. Franzi 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).
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Patent number: 11817612Abstract: A non-reciprocal microwave network is provided that includes an in-line ferromagnetic element with adjoining polarizing adapters to achieve directivity via a multi-mode interaction at or near the ferrite to act as new class of 4-port circulator or 2-port isolator, with standard waveguide inputs for assembly in larger networks.Type: GrantFiled: November 30, 2021Date of Patent: November 14, 2023Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Matthew A. Franzi, Sami G. Tantawi
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Publication number: 20220115758Abstract: A non-reciprocal microwave network is provided that includes an in-line ferromagnetic element with adjoining polarizing adapters to achieve directivity via a multi-mode interaction at or near the ferrite to act as new class of 4-port circulator or 2-port isolator, with standard waveguide inputs for assembly in larger networks.Type: ApplicationFiled: November 30, 2021Publication date: April 14, 2022Inventors: Matthew A. Franzi, Sami G. Tantawi
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Patent number: 11258149Abstract: A non-reciprocal microwave network is provided that includes an in-line ferromagnetic element [1010] with adjoining polarizing adapters [1002, 1004, 1006, 1008] to achieve directivity via a multi-mode interaction at or near the ferrite to act as new class of 4-port circulator or 2-port isolator, with standard waveguide inputs for assembly in larger networks.Type: GrantFiled: February 14, 2019Date of Patent: February 22, 2022Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Matthew A. Franzi, Sami G. Tantawi
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Publication number: 20210167475Abstract: A non-reciprocal microwave network is provided that includes an in-line ferromagnetic element [1010] with adjoining polarizing adapters [1002, 1004, 1006, 1008] to achieve directivity via a multi-mode interaction at or near the ferrite to act as new class of 4-port circulator or 2-port isolator, with standard waveguide inputs for assembly in larger networks.Type: ApplicationFiled: February 14, 2019Publication date: June 3, 2021Inventors: Matthew A. Franzi, Sami G. Tantawi
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Patent number: 10424714Abstract: A piezoelectric dipole transmitter is provided that includes a piezoelectric element, an insulating support disposed at a midpoint of said piezoelectric element, or along the piezoelectric element, an external capacitance driver, and an external modulation capacitance disposed proximal to a first end of the piezoelectric element, where the driver capacitance is driven by a signal appropriate to excite a length-extensional acoustic mode of the piezoelectric element, where the piezoelectric element resonates at a piezoelectric element resonance frequency to radiate energy as an electric dipole.Type: GrantFiled: November 27, 2018Date of Patent: September 24, 2019Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Mark A. Kemp, Matthew A. Franzi, Erik N. Jongewaard, Emilio A. Nanni, Andrew A. Haase
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Publication number: 20190097119Abstract: A piezoelectric dipole transmitter is provided that includes a piezoelectric element, an insulating support disposed at a midpoint of said piezoelectric element, or along the piezoelectric element, an external capacitance driver, and an external modulation capacitance disposed proximal to a first end of the piezoelectric element, where the driver capacitance is driven by a signal appropriate to excite a length-extensional acoustic mode of the piezoelectric element, where the piezoelectric element resonates at a piezoelectric element resonance frequency to radiate energy as an electric dipole.Type: ApplicationFiled: November 27, 2018Publication date: March 28, 2019Inventors: Mark A. Kemp, Matthew A. Franzi, Erik N. Jongewaard, Emilio A. Nanni, Andrew A. Haase
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Publication number: 20190074578Abstract: A piezoelectric dipole transmitter is provided that includes a piezoelectric element comprising a mechanical resonance frequency, an insulating support disposed at a midpoint of the piezoelectric element, an external capacitance actuator driver, and an external capacitance actuator disposed proximal to one end of the piezoelectric element, where the capacitance actuator is driven by the external capacitance actuator driver to output a capacitive drive signal excites a length-extensional acoustic mode of the piezoelectric element to resonate at a piezoelectric element resonance frequency, where the piezoelectric element radiates energy as an electric dipole.Type: ApplicationFiled: September 4, 2018Publication date: March 7, 2019Inventors: Matthew A. Franzi, Erik N. Jongewaard, Mark A. Kemp, Emilio A. Nanni
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Patent number: 9750124Abstract: A particle accelerator is provided that includes a piezoelectric accelerator element, where the piezoelectric accelerator element includes a hollow cylindrical shape, and an input transducer, where the input transducer is disposed to provide an input signal to the piezoelectric accelerator element, where the input signal induces a mechanical excitation of the piezoelectric accelerator element, where the mechanical excitation is capable of generating a piezoelectric electric field proximal to an axis of the cylindrical shape, where the piezoelectric accelerator is configured to accelerate a charged particle longitudinally along the axis of the cylindrical shape according to the piezoelectric electric field.Type: GrantFiled: March 28, 2016Date of Patent: August 29, 2017Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Mark A. Kemp, Erik N. Jongewaard, Andrew A. Haase, Matthew Franzi
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Publication number: 20160338186Abstract: A particle accelerator is provided that includes a piezoelectric accelerator element, where the piezoelectric accelerator element includes a hollow cylindrical shape, and an input transducer, where the input transducer is disposed to provide an input signal to the piezoelectric accelerator element, where the input signal induces a mechanical excitation of the piezoelectric accelerator element, where the mechanical excitation is capable of generating a piezoelectric electric field proximal to an axis of the cylindrical shape, where the piezoelectric accelerator is configured to accelerate a charged particle longitudinally along the axis of the cylindrical shape according to the piezoelectric electric field.Type: ApplicationFiled: March 28, 2016Publication date: November 17, 2016Inventors: Mark A. Kemp, Erik N. Jongewaard, Andrew A. Haase, Matthew Franzi
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Patent number: 8841867Abstract: A crossed field device, such as a magnetron or crossed field amplifier, that includes a cathode, an anode, one or more magnetic elements, and one or more extraction elements. In one embodiment, the crossed field device includes an annular cathode and anode that are axially spaced from one another such that the device produces an axial electric (E) field and a radial magnetic (B) field. In another embodiment, the crossed field device includes an oval-shaped cathode and anode that are radially spaced from one another such that the device produces a radial electric (E) field and an axial magnetic (B) field. The crossed field device may produce electromagnetic (EM) emissions having a frequency ranging from megahertz (MHz) to terahertz (THz), and may be used in one of a number of different applications.Type: GrantFiled: August 20, 2010Date of Patent: September 23, 2014Assignee: The Regents of The University of MichiganInventors: Ronald M. Gilgenbach, Yue-Ying Lau, David M. French, Brad W. Hoff, John Luginsland, Matthew Franzi
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Publication number: 20110204785Abstract: A crossed field device, such as a magnetron or crossed field amplifier, that includes a cathode, an anode, one or more magnetic elements, and one or more extraction elements. In one embodiment, the crossed field device includes an annular cathode and anode that are axially spaced from one another such that the device produces an axial electric (E) field and a radial magnetic (B) field. In another embodiment, the crossed field device includes an oval-shaped cathode and anode that are radially spaced from one another such that the device produces a radial electric (E) field and an axial magnetic (B) field. The crossed field device may produce electromagnetic (EM) emissions having a frequency ranging from megahertz (MHz) to terahertz (THz), and may be used in one of a number of different applications.Type: ApplicationFiled: August 20, 2010Publication date: August 25, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Ronald M. Gilgenbach, Yue-Ying Lau, David M. French, Brad W. Hoff, John Luginsland, Matthew Franzi