Patents by Inventor James F. Fung
James F. Fung 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: 11969788Abstract: A method of manufacturing an antenna assembly includes additively manufacturing an element that is a monolithic structure and that includes (i) a ground plane including one or more aperture slots, (ii) a patch antenna above the ground plane, and (iii) a sacrificial support feature to support the patch antenna above the ground plane. The method further includes applying a dielectric material between the ground plane and the patch antenna. In an example, applying the dielectric material between the ground plane and the patch antenna includes providing a dielectric foam between the ground plane and the patch antenna, where the dielectric foam at least in part supports the patch antenna above the ground plane. The method further includes removing at least a section of the sacrificial support feature, such that any remnant of the support feature does not physically couple the ground plane to the patch antenna.Type: GrantFiled: January 25, 2023Date of Patent: April 30, 2024Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Jean L. Kubwimana, Alexander D. Johnson, Jacob Tamasy, James F. Fung, Matthew J. Ney
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Publication number: 20230198119Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.Type: ApplicationFiled: December 17, 2021Publication date: June 22, 2023Applicant: BAE Systems Information and Electronic Systems Inc.Inventors: Alexander D. Johnson, James F. FUNG, William K. Grefe
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Patent number: 11682822Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.Type: GrantFiled: December 17, 2021Date of Patent: June 20, 2023Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Alexander D. Johnson, James F. Fung, William K. Grefe
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Patent number: 11652299Abstract: A tightly coupled dipole array is an egg-crate configuration defined by a plurality of electrically connected antenna unit cells. At least one of the unit cells utilizes a short or conductive element that shorts the common mode resonance. Shorting the common mode resonance in an intentional manner removes instances of the common mode resonance. To achieve the shorting of the common mode resonance, a conductive element is connected with one of the dipole arms and connected to the outer conductor of the feed or a ground plane. This creates a grounding loop that pushes the resonance out of the band of interest.Type: GrantFiled: February 25, 2021Date of Patent: May 16, 2023Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Matilda Livadaru, Mark Fosberry, James F. Fung, Alexander D. Johnson, Randall R. Lapierre, Daniel G. Morin
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Patent number: 11600910Abstract: The system for an antenna assembly for use on unmanned underwater vehicles (UUV). The antennas are low-cost, lightweight, single-use, and have a small form factor amenable to use on a micro-UUV. A central post and pivotally attached arms form an antenna (e.g., a monopole) that is lifted via an aerial, kite, or the like, when deployed from the UUV to extend the line of site of the antenna several meters above the surface of the water. In some cases, the antenna may be used on a number of UUVs in a swarm formation.Type: GrantFiled: December 17, 2021Date of Patent: March 7, 2023Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Alexander D. Johnson, James F. Fung, William K. Grefe
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Publication number: 20220271438Abstract: A tightly coupled dipole array is an egg-crate configuration defined by a plurality of electrically connected antenna unit cells. At least one of the unit cells utilizes a short or conductive element that shorts the common mode resonance. Shorting the common mode resonance in an intentional manner removes instances of the common mode resonance. To achieve the shorting of the common mode resonance, a conductive element is connected with one of the dipole arms and connected to the outer conductor of the feed or a ground plane. This creates a grounding loop that pushes the resonance out of the band of interest.Type: ApplicationFiled: February 25, 2021Publication date: August 25, 2022Inventors: Matilda Livadaru, Mark Fosberry, James F. Fung, Alexander D. Johnson, Randall R. Lapierre, Daniel G. Morin
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Patent number: 11342687Abstract: An endfire antenna structure is disclosed that is for use on aerodynamic systems. The antenna structure includes a first layer of patterned metal, a second layer of patterned metal, and a stack of material layers that includes the first layer of patterned metal and the second layer of patterned metal. The first layer of patterned metal includes a plurality of parallel slots etched through the metal. The second layer of patterned metal includes a tapered radio frequency (RF) feedline having a narrow end coupled to an input/output (I/O) antenna connection. The second layer of patterned metal is aligned over the first layer of patterned metal such that the tapered RF feedline has a length that extends across the plurality of parallel slots. The stack of material layers is flexible such that the stack of material layers is configured to wrap at least partially around the fuselage of an aerodynamic system.Type: GrantFiled: April 20, 2021Date of Patent: May 24, 2022Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Court E. Rossman, Maxwell L. Affleck, Matthew F. Chrobak, James F. Fung, Paul D. Zemany
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Patent number: 10784590Abstract: An array antenna has a plurality of antenna unit cells arranged in rows and columns, or in another configuration. Each unit cell from the plurality of unit cells includes a circularly polarized radiator and a balun. The array antenna further includes a reactive element or a circuit element (such as a capacitor or resistor or even an inductor) on the circularly polarized radiator that is coupled an adjacent unit cell in one of the row and the column. A spacing distance between adjacent unit cells coupled via the circuit element that is at most half of a wavelength at a frequency maximum of the array antenna, wherein the spacing distance reduces likelihood of grating lobes.Type: GrantFiled: July 6, 2018Date of Patent: September 22, 2020Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Andrew C. Maccabe, James F. Fung, Randall R. Lapierre, Benjamin G. McMahon
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Publication number: 20200014121Abstract: An array antenna has a plurality of antenna unit cells arranged in rows and columns, or in another configuration. Each unit cell from the plurality of unit cells includes a circularly polarized radiator and a balun. The array antenna further includes a reactive element or a circuit element (such as a capacitor or resistor or even an inductor) on the circularly polarized radiator that is coupled an adjacent unit cell in one of the row and the column. A spacing distance between adjacent unit cells coupled via the circuit element that is at most half of a wavelength at a frequency maximum of the array antenna, wherein the spacing distance reduces likelihood of grating lobes.Type: ApplicationFiled: July 6, 2018Publication date: January 9, 2020Inventors: Andrew C. Maccabe, James F. Fung, Randall R. Lapierre, Benjamin G. McMahon
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Patent number: 9560785Abstract: The mezzanine card system and method of use thereof provides a baseboard having opposing sides, each side configured to receive a mezzanine card thereon. A plurality of mezzanine cards are provided having integrated circuits, such as Field Programmable Gate Arrays, fixedly attached thereon. The mezzanine cards of the system reduce reprogramming time from about 15 months to about six weeks. This drastic reduction in reprogramming time provides great advantages for circuitry systems, especially when these systems are used within battlefield and electronic warfare technology. The surfaces of the baseboard are an Electroless Nickel, Electroless Palladium, and Immersion Gold (ENEPIG) plated finish.Type: GrantFiled: September 18, 2013Date of Patent: January 31, 2017Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: David A. Brigham, James F. Fung, Gregory S. Laste, Bryan A. Thibideau, Joseph C. Brackett