Patents by Inventor Gokhan Mumcu
Gokhan Mumcu 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: 20220278856Abstract: Three-dimensional (3D) printing is implemented to introduce randomness into systems and devices that are being manufactured. 3D printed physically unclonable wireless systems (PUWS) provide flexibility in system package complexity, number of physically unclonable function (PUF) based security measures/types, and customization of the PUF parameters. Using flexibility and economics of 3D printing, PUWS can combine multiple PUF measures in a 3D package for cryptographic secret keys and introduce PUFs at the physical layer of the communication system. A 3D printed wireless system packaging concept is described herein where 3D printing parameters are randomized to 1) generate new physically unclonable functions (at the physical layer), 2) generate new physically unclonable functions within the system package (rather than at integrated circuit (IC) level), and 3) combine multiple physically unclonable functions (such as optical and electrical/VIA based ones) within single device structure.Type: ApplicationFiled: March 1, 2022Publication date: September 1, 2022Inventors: Gokhan Mumcu, Huseyin Arslan
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Patent number: 11303018Abstract: System and method for determining a position of an antenna array for optimal wireless communication. The system includes a spatially adaptive and beam-steering antenna array configured to control a wireless communications path between a first element and a second element based on a determination of wireless channel gain.Type: GrantFiled: November 22, 2019Date of Patent: April 12, 2022Assignee: University of South FloridaInventors: Mustafa Harun Yilmaz, Ertugrul Guvenkaya, Gokhan Mumcu, Huseyin Arslan
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Patent number: 11185261Abstract: A system and method for continuous glucose monitoring (CGM) of blood in a blood vessel of a patient using a non-invasive sensor composed of a patch antenna operating in the Industrial, Scientific and Medical (ISM) Radio band (5.725 GHz-5.875 GHz). The device determines the blood glucose concentration of the blood in the blood vessel based on the measured shift of the resonant frequency of the non-invasive antenna patch sensor. A radio frequency (RF) synthesizer is used to drive the patch antenna with a fraction of its output coupled to both the antenna and receiver through a directional coupler. In this approach both the transmitted (FWD) and received (REV) power are processed, by demodulating logarithmic amplifiers, which convert the RF signals to corresponding voltages for downstream processing. The resulting voltages are then fed into a microcontroller and the measured shift in resonant frequency is converted to a real-time glucose concentration.Type: GrantFiled: January 30, 2019Date of Patent: November 30, 2021Assignee: University of South FloridaInventors: Stephen E. Saddow, Fabiola Araujo Cespedes, Gokhan Mumcu, Christopher Leroy Frewin
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Patent number: 11158939Abstract: System and method for determining a position of an antenna array for optimal wireless communication. The system includes a spatially adaptive and beam-steering antenna array configured to control a wireless communications path between a first element and a second element based on a determination of wireless channel gain.Type: GrantFiled: November 13, 2017Date of Patent: October 26, 2021Assignee: University of South FloridaInventors: Mustafa Harun Yilmaz, Ertugrul Guvenkaya, Gokhan Mumcu, Huseyin Arslan
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Patent number: 10903578Abstract: Various examples are provided related to hybrid multiple-input/multiple-output (MIMO) architectures. Beam steering can be provided using lens arrays. In one example, a hybrid antenna system includes a plurality of lens antenna subarrays (LAS), each of the LAS including a plurality of antenna elements configured to selectively receive a radio frequency (RF) transmission signal from RF processing circuitry, and a lens extending across the plurality of antenna elements. The RF transmission signal can be provided to a selected antenna of the plurality of antenna elements via a switching network and a common phase shifter for transmission. The lens can be configured to steer a RF transmission generated by the selected antenna in a defined direction. The selected antenna can be determined by the switching network configuration.Type: GrantFiled: April 13, 2020Date of Patent: January 26, 2021Assignee: University of South FloridaInventors: Murat Karabacak, Gokhan Mumcu, Huseyin Arslan
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Patent number: 10819321Abstract: Disclosed is a phase shifter capable of achieving 360° phase shifts. The phase shifter includes an active balanced-to-unbalanced (balun) circuit for splitting an input signal into two signals offset in phase. The phase shifter further includes an active all-pass network electrically coupled to an output of the active balun circuit. The active all-pass network can include an active tunable inductor. A variable-gain amplifier (VGA) is electrically coupled to an output of the active all-pass network.Type: GrantFiled: June 27, 2019Date of Patent: October 27, 2020Assignees: UNIVERSITY OF SOUTH FLORIDA, THE CHARLES STARK DRAPER LABORATORYInventors: David Manuel Zaiden, Thomas M. Weller, John E. Grandfield, Gokhan Mumcu
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Publication number: 20200243981Abstract: Various examples are provided related to hybrid multiple-input/multiple-output (MIMO) architectures. Beam steering can be provided using lens arrays. In one example, a hybrid antenna system includes a plurality of lens antenna subarrays (LAS), each of the LAS including a plurality of antenna elements configured to selectively receive a radio frequency (RF) transmission signal from RF processing circuitry, and a lens extending across the plurality of antenna elements. The RF transmission signal can be provided to a selected antenna of the plurality of antenna elements via a switching network and a common phase shifter for transmission. The lens can be configured to steer a RF transmission generated by the selected antenna in a defined direction. The selected antenna can be determined by the switching network configuration.Type: ApplicationFiled: April 13, 2020Publication date: July 30, 2020Inventors: MURAT KARABACAK, GOKHAN MUMCU, HUSEYIN ARSLAN
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Patent number: 10714836Abstract: Various examples are provided related to hybrid multiple-input/multiple-output (MIMO) architectures. Beam steering can be provided using lens arrays. In one example, a hybrid antenna system includes a plurality of lens antenna subarrays (LAS), each of the LAS including a plurality of antenna elements configured to selectively receive a radio frequency (RF) transmission signal from RF processing circuitry, and a lens extending across the plurality of antenna elements. The RF transmission signal can be provided to a selected antenna of the plurality of antenna elements via a switching network and a common phase shifter for transmission. The lens can be configured to steer a RF transmission generated by the selected antenna in a defined direction. The selected antenna can be determined by the switching network configuration.Type: GrantFiled: December 23, 2018Date of Patent: July 14, 2020Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: Murat Karabacak, Gokhan Mumcu, Huseyin Arslan
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Publication number: 20200112094Abstract: System and method for determining a position of an antenna array for optimal wireless communication. The system includes a spatially adaptive and beam-steering antenna array configured to control a wireless communications path between a first element and a second element based on a determination of wireless channel gain.Type: ApplicationFiled: November 22, 2019Publication date: April 9, 2020Applicant: University of South FloridaInventors: Mustafa Harun Yilmaz, Ertugrul Guvenkaya, Gokhan Mumcu, Huseyin Arslan
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Patent number: 10454166Abstract: In some embodiments, a beam scanning antenna includes a lens having a focal surface and a microfluidic beam scanning focal plane array associated with the focal surface, the array including: an elongated microfluidic channel that contains an electrically conductive antenna element suspended within a dielectric fluid that is provided within the channel, the channel including multiple microfluidic chambers that are positioned at discrete locations along a length of the channel, wherein the antenna element can be selectively positioned within selected chambers, and means for moving the position of the antenna element along the channel to change a direction along which electromagnetic waves are transmitted or received.Type: GrantFiled: July 6, 2017Date of Patent: October 22, 2019Assignee: University of South FloridaInventors: Gokhan Mumcu, Rasim Oytun Guldiken, Ahmad Adel Gheethan
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Publication number: 20190231237Abstract: A system and method for continuous glucose monitoring (CGM) of blood in a blood vessel of a patient using a non-invasive sensor composed of a patch antenna operating in the Industrial, Scientific and Medical (ISM) Radio band (5.725 GHz-5.875 GHz). The device determines the blood glucose concentration of the blood in the blood vessel based on the measured shift of the resonant frequency of the non-invasive antenna patch sensor. A radio frequency (RF) synthesizer is used to drive the patch antenna with a fraction of its output coupled to both the antenna and receiver through a directional coupler. In this approach both the transmitted (FWD) and received (REV) power are processed, by demodulating logarithmic amplifiers, which convert the RF signals to corresponding voltages for downstream processing. The resulting voltages are then fed into a microcontroller and the measured shift in resonant frequency is converted to a real-time glucose concentration.Type: ApplicationFiled: January 30, 2019Publication date: August 1, 2019Applicant: University of South FloridaInventors: Stephen E. Saddow, Fabiola Araujo Cespedes, Gokhan Mumcu, Christopher Leroy Frewin
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Patent number: 10278629Abstract: In one embodiment, an implantable biosensor includes a sense antenna comprising a silicon carbide substrate and a radiating electrode formed on the substrate.Type: GrantFiled: March 12, 2013Date of Patent: May 7, 2019Assignees: University of South Florida, Mississippi State UniversityInventors: Shamima Afroz, Sylvia Wilson Thomas, Stephen E. Saddow, Gokhan Mumcu, Erdem Topsakal
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Publication number: 20180131089Abstract: System and method for determining a position of an antenna array for optimal wireless communication. The system includes a spatially adaptive and beam-steering antenna array configured to control a wireless communications path between a first element and a second element based on a determination of wireless channel gain.Type: ApplicationFiled: November 13, 2017Publication date: May 10, 2018Applicant: University of South FloridaInventors: Mustafa Harun Yilmaz, Ertugrul Guvenkaya, Gokhan Mumcu, Huseyin Arslan
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Patent number: 9716313Abstract: In some embodiments, a microfluidic beam scanning focal plane array for a beam scanning antenna includes an elongated microfluidic channel that contains an electrically conductive antenna element suspended within a dielectric fluid that is provided within the channel and means for moving the position of the antenna element along a length of the channel to change a direction along which electromagnetic waves are transmitted or received.Type: GrantFiled: July 7, 2014Date of Patent: July 25, 2017Assignee: University of South FloridaInventors: Gokhan Mumcu, Rasim Oytun Guldiken, Ahmad Adel Gheethan
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Patent number: 9490280Abstract: An imaging/detection device includes a hemispherical lens having a surface opposite a curvature of the hemispherical lens, where the hemispherical lens defines an optical axis. The imaging/detection device also includes a plurality of detectors arranged on a focal plane array that is positioned near the surface of the hemispherical lens. Each of the detectors respectively includes a diode and an antenna monolithically integrated with the diode. Additionally, at least one of the detectors is offset by a distance from the optical axis of the hemispherical lens and is configured such that a radiating pattern of the respective antenna is tilted by an angle and directed toward the optical axis of the hemispherical lens. A maximum direction of the radiating pattern of the respective antenna is related to the distance by which the detector is offset from the optical axis of the hemispherical lens.Type: GrantFiled: March 13, 2014Date of Patent: November 8, 2016Assignee: Ohio State Innovation FoundationInventors: Kubilay Sertel, Gokhan Mumcu
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Patent number: 9325047Abstract: In one embodiment, a dynamically reconfigurable bandpass filter includes a resonator loop and a microfluidic channel proximate to the resonator loop, the channel containing a conductor, wherein the position of the conductor within the channel can be adjusted to change capacitive loading of the resonator loop and therefore change the frequencies that the filter passes. In another embodiment, a filter includes a second resonator loop having comprising switches located at discrete positions along a length of the second resonator loop, wherein opening and closing of the switches changes the effective length of the second resonator loop to change capacitive loading of the first resonator loop.Type: GrantFiled: March 11, 2014Date of Patent: April 26, 2016Assignee: University of South FloridaInventors: Gokhan Mumcu, Timothy Joseph Palomo, Rasim Guldiken
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Patent number: 9130533Abstract: In one embodiment, a non-dispersive phase shifter includes a composite right- and left-handed (CRLH) circuit that can be toggled between a first phase delay state and a second phase delay state with a substantially constant phase shift over a range of frequencies.Type: GrantFiled: December 4, 2013Date of Patent: September 8, 2015Assignee: University of South FloridaInventors: Gokhan Mumcu, Thomas McCrea Weller, Ibrahim Turki Nassar
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Publication number: 20150051466Abstract: In one embodiment, an implantable biosensor includes a sense antenna comprising a silicon carbide substrate and a radiating electrode formed on the substrate.Type: ApplicationFiled: March 12, 2013Publication date: February 19, 2015Applicants: University of South Florida (A Florida Non-Profit Corporation), Office of Enterpreneurship and Technology TransferInventors: Shamima Afroz, Sylvia Wilson Thomas, Stephen E. Saddow, Gokhan Mumcu, Erdem Topsakal
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Patent number: 8922452Abstract: In one embodiment, a periodic spiral antenna includes first and second arms that form interleaved spirals parallel to an x-y plane, wherein the arms have a height dimension that extends along a z direction that is perpendicular to the x-y plane, and wherein the interleaved spirals form multiple turns of the antenna, the turns being equally spaced from each other throughout the antenna.Type: GrantFiled: March 21, 2014Date of Patent: December 30, 2014Assignees: University of South Florida, The Charles Stark Draper LaboratoryInventors: Jonathan Michael O'Brien, Thomas Weller, Gokhan Mumcu, John E. Grandfield
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Publication number: 20140191351Abstract: An imaging/detection device includes a hemispherical lens having a surface opposite a curvature of the hemispherical lens, where the hemispherical lens defines an optical axis. The imaging/detection device also includes a plurality of detectors arranged on a focal plane array that is positioned near the surface of the hemispherical lens. Each of the detectors respectively includes a diode and an antenna monolithically integrated with the diode. Additionally, at least one of the detectors is offset by a distance from the optical axis of the hemispherical lens and is configured such that a radiating pattern of the respective antenna is tilted by an angle and directed toward the optical axis of the hemispherical lens. A maximum direction of the radiating pattern of the respective antenna is related to the distance by which the detector is offset from the optical axis of the hemispherical lens.Type: ApplicationFiled: March 13, 2014Publication date: July 10, 2014Applicant: Ohio State UniversityInventors: Kubilay Sertel, Gokhan Mumcu