Patents by Inventor Michael J. Gawronski
Michael J. Gawronski 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: 9263804Abstract: Composite material, devices incorporating the composite material and methods of forming the composite material are provided. The composite material includes interstitial material that has at least one of a select relative permittivity property value and a select relative permeability property value. The composite material further includes inclusion material within the interstitial material. The inclusion material has at least one of a select relative permeability property value and a select relative permittivity property value. The select relative permeability and permittivity property values of the interstitial and the inclusion materials are selected so that the effective intrinsic impedance of the interstitial material and the inclusion material match the intrinsic impedance of air. Devices made from the composite include metamaterial and/or metamaterial-inspired (e.g., near-field LC-type parasitic) substrates and/or lenses, front-end protection, stealth absorbers, filters and mixers.Type: GrantFiled: March 28, 2014Date of Patent: February 16, 2016Assignee: Orbital ATK, Inc.Inventors: Christopher C. Fuller, John R. Lamberg, Michael J. Gawronski
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Publication number: 20140253409Abstract: Composite material, devices incorporating the composite material and methods of forming the composite material are provided. The composite material includes interstitial material that has at least one of a select relative permittivity property value and a select relative permeability property value. The composite material further includes inclusion material within the interstitial material. The inclusion material has at least one of a select relative permeability property value and a select relative permittivity property value. The select relative permeability and permittivity property values of the interstitial and the inclusion materials are selected so that the effective intrinsic impedance of the interstitial and the inclusion material match the intrinsic impedance of air. Devices made from the composite include metamaterial and/or metamaterial-inspired (e.g. near-field LC-type parasitic) substrates and/or lenses, front-end protection, stealth absorbers, filters and mixers.Type: ApplicationFiled: March 28, 2014Publication date: September 11, 2014Applicant: ALLIANT TECHSYSTEMS INC.Inventors: Christopher C. Fuller, John R. Lamberg, Michael J. Gawronski
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Patent number: 8723722Abstract: Composite material, devices incorporating the composite material and methods of forming the composite material are provided. The composite material includes interstitial material that has at least one of a select relative permittivity property value and a select relative permeability property value. The composite material further includes inclusion material within the interstitial material. The inclusion material has at least one of a select relative permeability property value and a select relative permittivity property value. The select relative permeability and permittivity property values of the interstitial and the inclusion materials are selected so that the effective intrinsic impedance of the interstitial and the inclusion material match the intrinsic impedance of air. Devices made from the composite include metamaterial and/or metamaterial-inspired (e.g. near-field LC-type parasitic) substrates and/or lenses, front-end protection, stealth absorbers, filters and mixers.Type: GrantFiled: August 27, 2009Date of Patent: May 13, 2014Assignee: Alliant Techsystems Inc.Inventors: Christopher C. Fuller, John R. Lamberg, Michael J. Gawronski
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Patent number: 8587474Abstract: A radar system includes at least one transmit array comprising a plurality of metamaterial elements. The radar system further includes at least one near-field stimulator for inputting electromagnetic signal to the transmit array so that a sub-wavelength target is illuminated with an electromagnetic wave.Type: GrantFiled: April 14, 2011Date of Patent: November 19, 2013Assignee: Alliant Techsystems Inc.Inventors: Christopher Fuller, John R. Lamberg, John J. Geddes, Michael J. Gawronski
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Publication number: 20110187577Abstract: A radar system includes at least one transmit array comprising a plurality of metamaterial elements. The radar system further includes at least one near-field stimulator for inputting electromagnetic signal to the transmit array so that a sub-wavelength target is illuminated with an electromagnetic wave.Type: ApplicationFiled: April 14, 2011Publication date: August 4, 2011Applicant: ALLIANT TECHSYSTEMS INC.Inventors: Christopher Fuller, John R. Lamberg, John J. Geddes, Michael J. Gawronski
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Patent number: 7928900Abstract: An antenna array includes at least one transmit array comprising a plurality of metamaterial elements. The antenna array further includes at least one near-field stimulator for inputting electromagnetic signal to the transmit array so that a sub-wavelength target is illuminated with an electromagnetic wave.Type: GrantFiled: December 13, 2007Date of Patent: April 19, 2011Assignee: Alliant Techsystems Inc.Inventors: Christopher Fuller, John R. Lamberg, John J Geddes, Michael J Gawronski
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Patent number: 4837529Abstract: A side-launch transition for efficiently joining a coaxial transmission line or coaxial connector to a microstrip transmission line for operation at millimeter wave frequencies. The microstrip transmission line comprises a conductive microstrip pattern on one side of a dielectric substrate and a ground plane on the other. The conductive microstrip pattern includes a rectangular terminal pad area of a predetermined length designed to be approximately equal to the wavelength of the signal being transmitted. This pad area is integrally joined to the microstrip line. A circular iris or aperture, is formed through the ground plane and is in a centered alignment with the terminal pad on the opposite side of the substrate. A small hole extends through the center of the iris and penetrates the substrate as well as the conductive pad area.Type: GrantFiled: March 24, 1988Date of Patent: June 6, 1989Assignee: Honeywell, Inc.Inventors: Michael J. Gawronski, Steven L. Palmquist, John R. Lamberg, Rebecca A. Hart
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Patent number: 4795989Abstract: A microwave and millimeter wave hybrid or monolithic microstrip test probe assembly provides a noninvasive radio frequency test point in a microstrip circuit. The probe assembly comprises a microstrip coupler. (12) adjacent a microstrip line (10) in the circuit for sampling a small amount of microwave energy propagating along said microstrip line. A stripline circuit (20, 22 and 24) is connected to the microstrip coupler. The stripline circuit includes a pad area (24) and a probe (26) moveable to overlay the pad area. The probe forms a ground plane with respect to the pad area, and a coaxial line (34) has an outer conductor connected to the probe and an inner conductor projecting through a hole in the probe. The probe assembly provides an RF test point within a microstrip circuit which allows an accurate, calibrated and repeatable means of sampling a microstrip signal while not affecting the normal performance of the hybrid or monolithic circuit.Type: GrantFiled: February 11, 1988Date of Patent: January 3, 1989Assignee: Honeywell, Inc.Inventors: Rebecca A. Hart, Michael J. Gawronski
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Patent number: 4716389Abstract: A microstrip attenuator comprising a block of lossy material which is preferably impregnated with ferrite particles and having a groove of a predetermined height and width dimension formed in the bottom surface thereof defining a tunnel and positionable upon a microstrip transmission line assembly, such that the microstrip element of the assembly passes through the tunnel, but is in non-contact relation with respect to the surface-mounted microstrip element. The degree of attenuation afforded by the attenuator is primarily a function of the aforementioned length and height dimension of the tunnel formed in the block of lossy material.Type: GrantFiled: October 20, 1986Date of Patent: December 29, 1987Assignee: Honeywell Inc.Inventors: Michael J. Gawronski, John R. Lamberg
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Patent number: 4232278Abstract: PIN diodes of decreasing base region thicknesses, wherein the thickest base region diode functions as a quasi-active limiter with turn-on bias supplied by detected RF current in a Schottky barrier diode with a discharge resistor providing fast recovery; and the thinnest base region PIN diode being a zero bias punch-through type, with a dc sensitivity time control, functioning as a passive limiter during transmit and controlled attenuator during receive provides an improved radar receiver protector circuit. The operation of the PIN diode is enhanced by a unique mounting on a gold-plated copper puck in the circuit board and tuning the signal leads to the diode.Type: GrantFiled: July 6, 1979Date of Patent: November 4, 1980Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Michael J. Gawronski, Harry Goldie