Patents by Inventor Ian T. McMichael
Ian T. McMichael 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: 11502415Abstract: A polarization configurable patch antenna including a radiating layer, wherein the radiating layer has a corner truncated rectangular patch shape; and a feed capacitively coupled to the radiating layer for exciting the radiating layer, wherein the radiating layer is rotatable with respect to the feed, and the antenna is configured to generate a right-hand circularly polarized radiation field when the radiating layer is in a first rotational position and a left-hand circularly polarized radiation field when the radiating layer is in a second rotational position.Type: GrantFiled: September 14, 2020Date of Patent: November 15, 2022Assignee: The MITRE CorporationInventor: Ian T. McMichael
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Publication number: 20210066806Abstract: A polarization configurable patch antenna including a radiating layer, wherein the radiating layer has a corner truncated rectangular patch shape; and a feed capacitively coupled to the radiating layer for exciting the radiating layer, wherein the radiating layer is rotatable with respect to the feed, and the antenna is configured to generate a right-hand circularly polarized radiation field when the radiating layer is in a first rotational position and a left-hand circularly polarized radiation field when the radiating layer is in a second rotational position.Type: ApplicationFiled: September 14, 2020Publication date: March 4, 2021Applicant: The MITRE CorporationInventor: Ian T. MCMICHAEL
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Patent number: 10777894Abstract: A polarization configurable patch antenna including a radiating layer, wherein the radiating layer has a corner truncated rectangular patch shape; and a feed capacitively coupled to the radiating layer for exciting the radiating layer, wherein the radiating layer is rotatable with respect to the feed, and the antenna is configured to generate a right-hand circularly polarized radiation field when the radiating layer is in a first rotational position and a left-hand circularly polarized radiation field when the radiating layer is in a second rotational position.Type: GrantFiled: February 15, 2018Date of Patent: September 15, 2020Assignee: The MITRE CorporationInventor: Ian T. McMichael
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Patent number: 10483631Abstract: A multi-band helix antenna including one or more first arms extending helically about an axis at a first distance from the axis; and one or more second arms extending helically about the axis at a second distance from the axis that is greater than the first distance, wherein each of the one or more second arms comprises at least one trap circuit configured to have a first impedance at a resonant frequency of the one or more first arms and a second impedance at a resonant frequency of the one or more second arms, and the first impedance is greater than the second impedance.Type: GrantFiled: September 26, 2016Date of Patent: November 19, 2019Assignee: The MITRE CorporationInventors: Ian T. McMichael, Erik T. Lundberg, Mohamed Wajih Elsallal
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Patent number: 10483648Abstract: Cavity backed slot antenna arrays for conformal antenna applications are provided. A cavity backed slot antenna array may include an aperture, first and second feed structures, and a backing cavity configured to support the aperture and the first and second feed structures. The aperture may have a dielectric layer and a metal layer disposed on the dielectric layer. The metal layer may have first and second annular regions. The first annular region may have a first slot region and the second annular region may have a second slot region, where the second slot region may partially overlap the first slot region. The metal layer may further include first and second radiating elements configured to radiate energy. Each of the first and second feed structures may include a central portion and a plurality of fin structures arranged radially around the central portion.Type: GrantFiled: March 27, 2018Date of Patent: November 19, 2019Assignee: The MITRE CorporationInventors: Eric D. Robinson, Ian T. McMichael
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Publication number: 20190305435Abstract: Cavity backed slot antenna arrays for conformal antenna applications are provided. A cavity backed slot antenna array may include an aperture, first and second feed structures, and a backing cavity configured to support the aperture and the first and second feed structures. The aperture may have a dielectric layer and a metal layer disposed on the dielectric layer. The metal layer may have first and second annular regions. The first annular region may have a first slot region and the second annular region may have a second slot region, where the second slot region may partially overlap the first slot region. The metal layer may further include first and second radiating elements configured to radiate energy. Each of the first and second feed structures may include a central portion and a plurality of fin structures arranged radially around the central portion.Type: ApplicationFiled: March 27, 2018Publication date: October 3, 2019Applicant: The MITRE CorporationInventors: Eric D. ROBINSON, Ian T. MCMICHAEL
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Patent number: 10424836Abstract: A helix antenna including a first radiating element extending helically about a longitudinal axis and tuned to resonate in a frequency band, a reactive element electrically connected to a first end of the first radiating element, and a second radiating element extending helically about the axis and electrically connected to the reactive element at a first end of the second radiating element, wherein the second radiating element is tuned to resonate in the frequency band.Type: GrantFiled: September 26, 2016Date of Patent: September 24, 2019Assignee: The MITRE CorporationInventors: Ian T. McMichael, Steven R. Best, Erik T. Lundberg, Eddie N. Rosario
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Publication number: 20190252785Abstract: A polarization configurable patch antenna including a radiating layer, wherein the radiating layer has a corner truncated rectangular patch shape; and a feed capacitively coupled to the radiating layer for exciting the radiating layer, wherein the radiating layer is rotatable with respect to the feed, and the antenna is configured to generate a right-hand circularly polarized radiation field when the radiating layer is in a first rotational position and a left-hand circularly polarized radiation field when the radiating layer is in a second rotational position.Type: ApplicationFiled: February 15, 2018Publication date: August 15, 2019Applicant: The MITRE CorporationInventor: Ian T. MCMICHAEL
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Patent number: 10205240Abstract: A microstrip antenna for circularly polarized radiation including a substrate, a ground layer disposed on a first side of the substrate, a first radiating layer disposed on a second side of the substrate opposite the first side, one or more first electrically conductive pathways extending from the ground layer to the first radiating layer, wherein the one or more first electrically conductive pathways form a ring about an axis, one or more second electrically conductive pathways extending from the ground layer to the first radiating layer, wherein the one or more second electrically conductive pathways are disposed along a portion of a first line extending outwardly from the ring, and a feed conductor for connecting the antenna to a feed line.Type: GrantFiled: September 30, 2015Date of Patent: February 12, 2019Assignee: The MITRE CorporationInventors: Ian T. McMichael, Erik T. Lundberg, Frank S. Kolak
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Patent number: 10158160Abstract: A metamaterial for receiving electromagnetic waves having any polarization is provided. The metamaterial allows for receipt and/or propagation of electromagnetic waves at a resonant frequency of the metamaterial.Type: GrantFiled: September 12, 2016Date of Patent: December 18, 2018Assignee: THE MITRE CORPORATIONInventors: Ian T. McMichael, Jamie R. Hood, Mohamed Wajih Elsallal
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Patent number: 9991601Abstract: A microstrip antenna including a first substrate, a ground plane disposed on a first side of the first substrate, a first conductive layer disposed on a second side of the first substrate, wherein the first conductive layer is configured to resonate at a first frequency, a second substrate disposed on the first conductive layer, a second conductive layer disposed on a side of the second substrate, wherein the second conductive layer is configured to resonate at a second frequency, a first feed portion extending through the first substrate, and configured to provide first excitation signals to the first conductive layer, a second feed portion extending through the second substrate, wherein the second feed portion is configured to provide second excitation signals to the second conductive layer, and a conductive strip disposed in the first conductive layer and electrically connecting the first feed portion and the second feed portion.Type: GrantFiled: September 30, 2015Date of Patent: June 5, 2018Assignee: The MITRE CorporationInventor: Ian T. McMichael
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Publication number: 20180090829Abstract: A multi-band helix antenna including one or more first arms extending helically about an axis at a first distance from the axis; and one or more second arms extending helically about the axis at a second distance from the axis that is greater than the first distance, wherein each of the one or more second arms comprises at least one trap circuit configured to have a first impedance at a resonant frequency of the one or more first arms and a second impedance at a resonant frequency of the one or more second arms, and the first impedance is greater than the second impedance.Type: ApplicationFiled: September 26, 2016Publication date: March 29, 2018Applicant: The MITRE CorporationInventors: Ian T. MCMICHAEL, Erik T. LUNDBERG, Mohamed Wajih ELSALLAL
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Publication number: 20180090830Abstract: A helix antenna including a first radiating element extending helically about a longitudinal axis and tuned to resonate in a frequency band, a reactive element electrically connected to a first end of the first radiating element, and a second radiating element extending helically about the axis and electrically connected to the reactive element at a first end of the second radiating element, wherein the second radiating element is tuned to resonate in the frequency band.Type: ApplicationFiled: September 26, 2016Publication date: March 29, 2018Applicant: The MITRE CorporationInventors: Ian T. MCMICHAEL, Steven R. BEST, Erik T. LUNDBERG, Eddie N. ROSARIO
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Publication number: 20180076503Abstract: A metamaterial for receiving electromagnetic waves having any polarization is provided. The metamaterial allows for receipt and/or propagation of electromagnetic waves at a resonant frequency of the metamaterial.Type: ApplicationFiled: September 12, 2016Publication date: March 15, 2018Inventors: Ian T. McMichael, Jamie R. HOOD, Mohamed Wajih ELSALLAL
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Publication number: 20170093042Abstract: A microstrip antenna for circularly polarized radiation including a substrate, a ground layer disposed on a first side of the substrate, a first radiating layer disposed on a second side of the substrate opposite the first side, one or more first electrically conductive pathways extending from the ground layer to the first radiating layer, wherein the one or more first electrically conductive pathways form a ring about an axis, one or more second electrically conductive pathways extending from the ground layer to the first radiating layer, wherein the one or more second electrically conductive pathways are disposed along a portion of a first line extending outwardly from the ring, and a feed conductor for connecting the antenna to a feed line.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Applicant: The MITRE CorporationInventors: Ian T. MCMICHAEL, Erik T. LUNDBERG, Frank S. KOLAK
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Publication number: 20170093041Abstract: A microstrip antenna including a first substrate, a ground plane disposed on a first side of the first substrate, a first conductive layer disposed on a second side of the first substrate, wherein the first conductive layer is configured to resonate at a first frequency, a second substrate disposed on the first conductive layer, a second conductive layer disposed on a side of the second substrate, wherein the second conductive layer is configured to resonate at a second frequency, a first feed portion extending through the first substrate, and configured to provide first excitation signals to the first conductive layer, a second feed portion extending through the second substrate, wherein the second feed portion is configured to provide second excitation signals to the second conductive layer, and a conductive strip disposed in the first conductive layer and electrically connecting the first feed portion and the second feed portion.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Applicant: The MITRE CorporationInventor: Ian T. McMichael