Patents by Inventor Hussein Esfahlani
Hussein Esfahlani 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).
-
Patent number: 11978955Abstract: A unit cell can be used for a metasurface, metamaterial, or beamforming antenna. The unit cell includes a metal layer attached to a substrate. The metal layer defines an iris opening for the unit cell. One or more tunable capacitance devices are positioned within or across the iris opening. Each tunable capacitance device is to tune resonance frequency of the unit cell. Mass transfer technologies or self-assembly processes may be used to position the tunable capacitance devices.Type: GrantFiled: September 29, 2022Date of Patent: May 7, 2024Assignee: KYMETA CORPORATIONInventors: Ryan A. Stevenson, Mohsen Sazegar, Cagdas Varel, Seyed Mohamad Amin Momeni Hasan Abadi, Steven Howard Linn, Hussein Esfahlani, Witold Teller
-
Patent number: 11978958Abstract: Methods and apparatuses for performing optical inspection of varactor diodes in an antenna are disclosed. In some embodiments, the method of testing an antenna having varactor diodes comprises: selecting a plurality of varactor diodes to be placed in a light emitting state; forward biasing the selected varactor diodes to a magnitude at which the selected varactor diodes are to emit light; and detecting one or more faulty varactor diodes of the selected varactor diodes based on their emitted light intensity.Type: GrantFiled: August 16, 2022Date of Patent: May 7, 2024Assignee: KYMETA CORPORATIONInventors: Hussein Esfahlani, Cagdas Varel, Mohsen Sazegar, Steven Howard Linn, Ryan Stevenson, Mohammad Ranjbarnikkhah, Seyed Mohamad Amin Momeni Hasan Abadi
-
Patent number: 11871180Abstract: Supercoupling waveguides are provided in which acoustic impedance at an acoustic input port matches the acoustic impedance at an acoustic output port, where the acoustic path extending from the acoustic input port to the acoustic output port has a variable length. The supercoupling waveguides may be used in methods of sensing and measuring, and may be incorporated into sensors.Type: GrantFiled: December 3, 2019Date of Patent: January 9, 2024Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Matthew S. Byrne, Hussein Esfahlani, Andrea Alu
-
Publication number: 20230358795Abstract: Processes and apparatuses for antenna frequency matching are disclosed. In one embodiment, a calibration process for an antenna having radio-frequency (RF) radiating antenna elements comprises: determining resonance frequencies of RF radiating antenna elements in a group of RF radiating antenna elements; selecting voltages to apply to the RF radiating antenna elements to cause resonance frequencies to match between the RF radiating antenna elements in the group of RF radiating antenna elements when the voltages are applied; and storing, in memory of the antenna, voltage information indicative of the voltages for driving the RF radiating antenna elements in the group.Type: ApplicationFiled: May 4, 2022Publication date: November 9, 2023Inventors: Cagdas Varel, Steven H. Linn, Seyed Mohamad Amin Momeni Hasan Abadi, Hussein Esfahlani, Mohsen Sazegar, Ryan Stevenson
-
Publication number: 20230179291Abstract: A multibeam antenna and method of using the same are described. In one embodiment, the antenna comprises an aperture having a plurality of radio-frequency (RF) radiating antenna elements. The RF radiating antenna elements generate a plurality of beams simultaneously in different directions in response to a first modulation pattern for holographic beamforming applied to the plurality of RF radiating antenna elements to establish all beams of the plurality of beams such that antenna elements of the plurality of RF radiating antenna elements contribute to all beams in the plurality of beams concurrently. The antenna also includes a controller coupled to the aperture to generate the first modulation pattern.Type: ApplicationFiled: February 1, 2023Publication date: June 8, 2023Inventors: Hussein Esfahlani, Seyed Mohamad Amin Momeni Hasan Abadi, Mohsen Sazegar, Chris Eylander, Ryan Stevenson
-
Publication number: 20230127172Abstract: A unit cell can be used for a metasurface, metamaterial, or beamforming antenna. The unit cell includes a metal layer attached to a substrate. The metal layer defines an iris opening for the unit cell. One or more tunable capacitance devices are positioned within or across the iris opening. Each tunable capacitance device is to tune resonance frequency of the unit cell. Mass transfer technologies or self-assembly processes may be used to position the tunable capacitance devices.Type: ApplicationFiled: September 29, 2022Publication date: April 27, 2023Inventors: Ryan A. Stevenson, Mohsen Sazegar, Cagdas Varel, Seyed Mohamad Amin Momeni Hasan Abadi, Hussein Esfahlani, Witold Teller
-
Patent number: 11601192Abstract: A multibeam antenna and method of using the same are described. In one embodiment, the antenna comprises an aperture having a plurality of radio-frequency (RF) radiating antenna elements. The RF radiating antenna elements generate a plurality of beams simultaneously in different directions in response to a first modulation pattern for holographic beamforming applied to the plurality of RF radiating antenna elements to establish all beams of the plurality of beams such that antenna elements of the plurality of RF radiating antenna elements contribute to all beams in the plurality of beams concurrently. The antenna also includes a controller coupled to the aperture to generate the first modulation pattern.Type: GrantFiled: April 29, 2021Date of Patent: March 7, 2023Assignee: KYMETA CORPORATIONInventors: Hussein Esfahlani, Seyed Mohamad Amin Momeni Hasan Abadi, Mohsen Sazegar, Chris Eylander, Ryan Stevenson
-
Publication number: 20230058694Abstract: Methods and apparatuses for performing optical inspection of varactor diodes in an antenna are disclosed. In some embodiments, the method of testing an antenna having varactor diodes comprises: selecting a plurality of varactor diodes to be placed in a light emitting state; forward biasing the selected varactor diodes to a magnitude at which the selected varactor diodes are to emit light; and detecting one or more faulty varactor diodes of the selected varactor diodes based on their emitted light intensity.Type: ApplicationFiled: August 16, 2022Publication date: February 23, 2023Inventors: Hussein Esfahlani, Cagdas Varel, Mohsen Sazegar, Steven Howard Linn, Ryan Stevenson, Mohammad Ranjbarnikkhah, Seyed Mohamad Amin Momeni Hasan Abadi
-
Patent number: 11580946Abstract: Supercoupling waveguides are provided in which acoustic impedance at an acoustic input port matches the acoustic impedance at an acoustic output port, where the acoustic path extending from the acoustic input port to the acoustic output port has a variable length. The supercoupling waveguides may be used in methods of sensing and measuring, and may be incorporated into sensors.Type: GrantFiled: December 3, 2019Date of Patent: February 14, 2023Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Matthew S. Byrne, Hussein Esfahlani, Andrea Alu
-
Patent number: 11489266Abstract: A unit cell can be used for a metasurface, metamaterial, or beamforming antenna. The unit cell includes a metal layer attached to a substrate. The metal layer defines an iris opening for the unit cell. One or more tunable capacitance devices are positioned within or across the iris opening. Each tunable capacitance device is to tune resonance frequency of the unit cell. Mass transfer technologies or self-assembly processes may be used to position the tunable capacitance devices.Type: GrantFiled: August 12, 2020Date of Patent: November 1, 2022Assignee: KYMETA CORPORATIONInventors: Ryan A. Stevenson, Mohsen Sazegar, Cagdas Varel, Seyed Mohamad Amin Momeni Hasan Abadi, Steven Howard Linn, Hussein Esfahlani, Witold Teller
-
Publication number: 20220320753Abstract: Antennas having iris and/or cell rotation and/or with frequency compensation in solid state device (e.g., diode) designs and methods of using the same are described. In some embodiments, the antenna comprises: an antenna aperture having a plurality of RF radiating antenna elements that each include an iris and a solid state device coupled across the iris, wherein the plurality of antenna elements are located in rings with orientation of each of the irises of the antenna elements in at least a portion of each ring rotated with respect to adjacent irises in the portion of each ring while orientation of corresponding solid state devices is uniform; and a controller coupled to control the array of RF radiating antenna elements to tune RF radiating antenna elements to generate one or more beams using the plurality of RF radiating antenna elements.Type: ApplicationFiled: April 4, 2022Publication date: October 6, 2022Inventors: Mohsen Sazegar, Cagdas Varel, Hussein Esfahlani, Seyed Mohamad Amin Momeni Hasan Abadi
-
Publication number: 20220278449Abstract: Antennas with integrated varactor circuits are described. The antenna may comprise metasurface antennas. In some embodiments, an antenna comprises an array of antenna elements, wherein each antenna element comprises a iris and a varactor diode integrated on an integrated circuit (IC) chip coupled across a portion of the iris. The antenna can also comprise a plurality of transistors, each transistor coupled to a distinct one of the varactor diodes in the array of antenna elements to provide a tuning voltage to the one varactor diode.Type: ApplicationFiled: February 25, 2022Publication date: September 1, 2022Inventors: Mohsen Sazegar, Hussein Esfahlani, Cagdas Varel, Seyed Mohamad Amin Momeni Hasan Abadi, Tung Pham, Ryan Stevenson, Witold Teller, Mohammad Ranjbarnikkhah, Paul Klassen
-
Publication number: 20220006511Abstract: A multibeam antenna and method of using the same are described. In one embodiment, the antenna comprises an aperture having a plurality of radio-frequency (RF) radiating antenna elements. The RF radiating antenna elements generate a plurality of beams simultaneously in different directions in response to a first modulation pattern for holographic beamforming applied to the plurality of RF radiating antenna elements to establish all beams of the plurality of beams such that antenna elements of the plurality of RF radiating antenna elements contribute to all beams in the plurality of beams concurrently. The antenna also includes a controller coupled to the aperture to generate the first modulation pattern.Type: ApplicationFiled: April 29, 2021Publication date: January 6, 2022Inventors: Hussein Esfahlani, Seyed Mohamad Amin Momeni Hasan Abadi, Mohsen Sazegar, Chris Eylander, Ryan Stevenson
-
Patent number: 11044549Abstract: Supercoupling power dividers are provided, in which acoustic impedance at an acoustic input port matches the combined acoustic impedance at two or more acoustic output ports, and the phase of the input signal matches the combined phases of the two or more acoustic output ports. Methods for achieving impedance matching using a uniform-phase acoustic power divider are also provided. The devices and methods achieve acoustic supercoupling without requiring embedded membranes or resonators.Type: GrantFiled: December 3, 2019Date of Patent: June 22, 2021Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Matthew S. Byrne, Hussein Esfahlani, Andrea Alu
-
Publication number: 20210050671Abstract: A unit cell can be used for a metasurface, metamaterial, or beamforming antenna. The unit cell includes a metal layer attached to a substrate. The metal layer defines an iris opening for the unit cell. One or more tunable capacitance devices are positioned within or across the iris opening. Each tunable capacitance device is to tune resonance frequency of the unit cell. Mass transfer technologies or self-assembly processes may be used to position the tunable capacitance devices.Type: ApplicationFiled: August 12, 2020Publication date: February 18, 2021Inventors: Ryan A. Stevenson, Mohsen Sazegar, Cagdas Varel, Seyed Mohamad Amin Momeni Hasan Abadi, Steven Howard Linn, Hussein Esfahlani, Witold Teller