Patents by Inventor Mohamed Wajih A. Elsallal
Mohamed Wajih A. Elsallal 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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Publication number: 20230291118Abstract: A low profile phased array antenna that is configured to be manufactured using additive manufacturing techniques is provided. In one or more embodiments, the phased array can include a plurality of signal ears, ground ears, and clustered pillars that can be arranged in relation to a base plate such that each component of the antenna can be manufactured from a single piece of material, thereby allowing for the use of additive manufacturing techniques which can substantially reduce the cost and time of the manufacturing process. The phased array can include a signal ear that include one or more posts that interface with an airgap located within a base plate of the array, wherein the size of the airgap in relation to the size of the post is configured to achieve an optimal level of impedance matching.Type: ApplicationFiled: May 15, 2023Publication date: September 14, 2023Applicant: The MITRE CorporationInventors: Cecelia R. FRANZINI, Mohamed Wajih ELSALLAL, Jamie R. HOOD
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Patent number: 11670868Abstract: A low profile phased array antenna that is configured to be manufactured using additive manufacturing techniques is provided. In one or more embodiments, the phased array can include a plurality of signal ears, ground ears, and clustered pillars that can be arranged in relation to a base plate such that each component of the antenna can be manufactured from a single piece of material, thereby allowing for the use of additive manufacturing techniques which can substantially reduce the cost and time of the manufacturing process. The phased array can include a signal ear that include one or more posts that interface with an airgap located within a base plate of the array, wherein the size of the airgap in relation to the size of the post is configured to achieve an optimal level of impedance matching.Type: GrantFiled: December 7, 2020Date of Patent: June 6, 2023Assignee: The MITRE CorporationInventors: Cecelia R. Franzini, Mohamed Wajih Elsallal, Jamie R. Hood
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Publication number: 20210111498Abstract: A low profile phased array antenna that is configured to be manufactured using additive manufacturing techniques is provided. In one or more embodiments, the phased array can include a plurality of signal ears, ground ears, and clustered pillars that can be arranged in relation to a base plate such that each component of the antenna can be manufactured from a single piece of material, thereby allowing for the use of additive manufacturing techniques which can substantially reduce the cost and time of the manufacturing process. The phased array can include a signal ear that include one or more posts that interface with an airgap located within a base plate of the array, wherein the size of the airgap in relation to the size of the post is configured to achieve an optimal level of impedance matching.Type: ApplicationFiled: December 7, 2020Publication date: April 15, 2021Applicant: The MITRE CorporationInventors: Cecelia R. FRANZINI, Mohamed Wajih ELSALLAL, Jamie R. HOOD
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Publication number: 20210028557Abstract: An antenna element including a base plate, a first ground clustered pillar projecting from the base plate, a second ground clustered pillar projecting from the base plate and spaced apart from a first side of the first ground clustered pillar is provided. The ground clustered pillars, the signal ears, and the ground ears can be shapes so that the capacitive coupling between the ears and the pillars is sufficient to allow them to be spaced further apart, thereby reducing the number of elements required in the phased array. In some embodiments, the ground ear can be directly machined with the base plate thereby obviating the need for the ground ear to be overmolded into the base plate with the signal ear. In other embodiments the phased array antenna can utilize elastomeric connectors to further improve the mechanical and electrical reliability of the connections of the phase array antenna.Type: ApplicationFiled: October 15, 2020Publication date: January 28, 2021Applicant: The MITRE CorporationInventors: Cecelia FRANZINI, Mohamed Wajih ELSALLAL, Jamie HOOD
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Patent number: 10886625Abstract: A low profile phased array antenna that is configured to be manufactured using additive manufacturing techniques is provided. In one or more embodiments, the phased array can include a plurality of signal ears, ground ears, and clustered pillars that can be arranged in relation to a base plate such that each component of the antenna can be manufactured from a single piece of material, thereby allowing for the use of additive manufacturing techniques which can substantially reduce the cost and time of the manufacturing process. The phased array can include a signal ear that include one or more posts that interface with an airgap located within a base plate of the array, wherein the size of the airgap in relation to the size of the post is configured to achieve an optimal level of impedance matching.Type: GrantFiled: August 28, 2018Date of Patent: January 5, 2021Assignee: The MITRE CorporationInventors: Cecelia R. Franzini, Mohamed Wajih Elsallal, Jamie R. Hood
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Patent number: 10854993Abstract: An antenna element including a base plate, a first ground clustered pillar projecting from the base plate, a second ground clustered pillar projecting from the base plate and spaced apart from a first side of the first ground clustered pillar is provided. The ground clustered pillars, the signal ears, and the ground ears can be shapes so that the capacitive coupling between the ears and the pillars is sufficient to allow them to be spaced further apart, thereby reducing the number of elements required in the phased array. In some embodiments, the ground ear can be directly machined with the base plate thereby obviating the need for the ground ear to be overmolded into the base plate with the signal ear. In other embodiments the phased array antenna can utilize elastomeric connectors to further improve the mechanical and electrical reliability of the connections of the phase array antenna.Type: GrantFiled: September 18, 2017Date of Patent: December 1, 2020Assignee: The MITRE CorporationInventors: Cecelia Franzini, Mohamed Wajih Elsallal, Jamie Hood
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Publication number: 20200076090Abstract: A low profile phased array antenna that is configured to be manufactured using additive manufacturing techniques is provided. In one or more embodiments, the phased array can include a plurality of signal ears, ground ears, and clustered pillars that can be arranged in relation to a base plate such that each component of the antenna can be manufactured from a single piece of material, thereby allowing for the use of additive manufacturing techniques which can substantially reduce the cost and time of the manufacturing process. The phased array can include a signal ear that include one or more posts that interface with an airgap located within a base plate of the array, wherein the size of the airgap in relation to the size of the post is configured to achieve an optimal level of impedance matching.Type: ApplicationFiled: August 28, 2018Publication date: March 5, 2020Applicant: The MITRE CorporationInventors: Cecelia R. FRANZINI, Mohamed Wajih ELSALLAL, Jamie R. HOOD
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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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Publication number: 20190089068Abstract: An antenna element including a base plate, a first ground clustered pillar projecting from the base plate, a second ground clustered pillar projecting from the base plate and spaced apart from a first side of the first ground clustered pillar is provided. The ground clustered pillars, the signal ears, and the ground ears can be shapes so that the capacitive coupling between the ears and the pillars is sufficient to allow them to be spaced further apart, thereby reducing the number of elements required in the phased array. In some embodiments, the ground ear can be directly machined with the base plate thereby obviating the need for the ground ear to be overmolded into the base plate with the signal ear. In other embodiments the phased array antenna can utilize elastomeric connectors to further improve the mechanical and electrical reliability of the connections of the phase array antenna.Type: ApplicationFiled: September 18, 2017Publication date: March 21, 2019Applicant: The MITRE CorporationInventors: Cecelia FRANZINI, Mohamed Wajih ELSALLAL, Jamie HOOD
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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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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: 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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Patent number: 7034753Abstract: A multi-band wide-angle scan phased array antenna with novel grating lobe suppression has a first plurality of radiation elements for radiating a first frequency arranged in a rectangular configuration. A second plurality of radiation elements for radiating second frequency are arranged in a rectangular frame around the first radiation elements. A third plurality of radiation elements for radiating third frequency are arranged in a rectangular frame around the second radiation elements. The radiation elements are apertures that are ?/2 of an operating frequency in size. The radiation elements may also be arranged in square, circular, or elliptical configurations.Type: GrantFiled: July 1, 2004Date of Patent: April 25, 2006Assignee: Rockwell Collins, Inc.Inventors: Mohamed Wajih A. Elsallal, James B. West
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Patent number: 6650291Abstract: A multi-band phased array antenna for radiating low frequency band signals and high frequency band signals. The multiband phased array antenna is formed from unit cells having waveguides for radiating high frequency band signals and end-fire radiating elements for radiating low frequency band signals. The unit cells have four walls with an open input end and an open radiating end. End-fire radiating elements are disposed on inner surfaces and outer surfaces of the four walls and radiate out the radiating end. Four waveguides are disposed together to radiate into the input end of the low frequency assembly.Type: GrantFiled: May 8, 2002Date of Patent: November 18, 2003Assignee: Rockwell Collins, Inc.Inventors: James B. West, Mohamed Wajih A. Elsallal