Patents by Inventor Lixin Cai
Lixin Cai 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).
-
Publication number: 20230261371Abstract: An antenna element and an antenna array including the antenna element for generating or receiving a radio frequency (RF) signal are provided. The antenna element includes a dielectric layer including a first surface and a second surface opposite the first surface; a first dipole antenna comprising a first antenna segment and a second antenna segment, the first dipole antenna formed in the second surface; a second dipole antenna comprising a first antenna segment and a second antenna segment, the second dipole antenna formed in the second surface; a coupling segment capacitively coupled to each of the second antenna segment of the first dipole antenna and the second antenna segment of the second dipole antenna; and a shorting pin capacitively coupled to the coupling segment and extending from the first surface to the second surface.Type: ApplicationFiled: February 14, 2022Publication date: August 17, 2023Inventors: Lixin Cai, Alec Adams
-
Publication number: 20230106696Abstract: Antenna elements include a metallic square ring patch and a metallic square ring slot to transmit or receive radio frequency (RF) signals. The antenna elements use several dielectric layers that are separated by a low-dielectric foam layer upon which the square ring patch is positioned. The disclosed antenna elements may be arranged together in an antenna array that is tunable to collectively generate or receive RF signals. In particular, the antenna array functions as a 256-element transmit/receive half-duplex antenna, operating in transmit or receive mode for half the time. The antenna array includes a radiator block, a transmit/receiver (T/R) amplifier block, a beamformer block, and a distribution network block.Type: ApplicationFiled: January 28, 2022Publication date: April 6, 2023Inventors: Alec Adams, Mark Gregory Bedson, Lixin Cai, Ming Chen, Peter Timothy Heisen, Korey Martin Holmstrom
-
Publication number: 20230104894Abstract: Antenna elements are disclosed herein that include a metallic square ring patch and a metallic square ring slot to transmit or receive radio frequency (RF) signals. The disclosed antenna elements use several dielectric layers that are separated by two low-dielectric foam layers. The square ring patch is located above an upper foam layer, and a square ring slot is located between the upper foam layer and a bottom foam layer. Electrical feed lines are used to either supply electrical power to the antenna elements cells or output RF signals that are received by the square ring patch. The disclosed antenna elements may be arranged together in an antenna array that is tunable to collectively generate or receive RF signals.Type: ApplicationFiled: January 28, 2022Publication date: April 6, 2023Inventors: Alec Adams, Lixin Cai, Robert John Greenlaw
-
Patent number: 11463166Abstract: Systems, methods, and apparatus for an electromagnetic (EM) panel are disclosed. In one or more embodiments, a disclosed electromagnetic (EM) panel comprises an outer skin, an inner skin, a core disposed between the outer skin and the inner skin, and at least one receiver to receive at least one first signal. In at least one embodiment, at least one receiver is disposed within an opening on the outer skin of the EM panel. At least one receiver is an optical sensor(s) and/or a radio frequency (RF) antenna(s). In one or more embodiments, the EM panel further comprises at least one transmitter to transmit at least one second signal. In at least one embodiment, at least one transmitter is disposed within an opening on the outer skin of the EM panel. At least one transmitter is a laser(s) and/or a RF antenna(s).Type: GrantFiled: July 23, 2020Date of Patent: October 4, 2022Assignee: The Boeing CompanyInventors: Manny S. Urcia, Jonathan M. St. Clair, Christopher M. La Fata, John G. Castagno, Ordie D. Butterfield, Stephen T. Tyahla, Alec Adams, Lixin Cai
-
Patent number: 11398683Abstract: A phased array antenna includes a resonant cavity, a plurality of feed waveguides, an array of slot antenna elements, and a plurality of phase shifters. The resonant cavity includes a boresight surface having a normal vector oriented with boresight for the phased array antenna. The plurality of feed waveguides is distributed along a perimeter of the resonant cavity and is configured to supply electromagnetic waves to the resonant cavity. The array of slot antenna elements is distributed about the boresight surface and configured to radiate a beam based on standing waves within the resonant cavity. Each of the plurality of phase shifters is respectively coupled with the plurality of feed waveguides and independently controllable to modify the respective phases of the standing waves to steer the beam.Type: GrantFiled: October 30, 2019Date of Patent: July 26, 2022Assignee: The Boeing CompanyInventors: Alec Adams, Lixin Cai
-
Patent number: 11038273Abstract: An antenna assembly includes a base including one or more feed transitions, a support panel separated from the base, a patch secured to the support panel, and one or more T-shaped probes that couple the feed transition(s) to the patch. The T-shaped probe(s) are separated from the patch.Type: GrantFiled: March 23, 2020Date of Patent: June 15, 2021Assignee: THE BOEING COMPANYInventors: Lixin Cai, Alec Adams, Manny Urcia
-
Publication number: 20210135372Abstract: A phased array antenna includes a resonant cavity, a plurality of feed waveguides, an array of slot antenna elements, and a plurality of phase shifters. The resonant cavity includes a boresight surface having a normal vector oriented with boresight for the phased array antenna. The plurality of feed waveguides is distributed along a perimeter of the resonant cavity and is configured to supply electromagnetic waves to the resonant cavity. The array of slot antenna elements is distributed about the boresight surface and configured to radiate a beam based on standing waves within the resonant cavity. Each of the plurality of phase shifters is respectively coupled with the plurality of feed waveguides and independently controllable to modify the respective phases of the standing waves to steer the beam.Type: ApplicationFiled: October 30, 2019Publication date: May 6, 2021Inventors: Alec Adams, Lixin Cai
-
Publication number: 20200358527Abstract: Systems, methods, and apparatus for an electromagnetic (EM) panel are disclosed. In one or more embodiments, a disclosed electromagnetic (EM) panel comprises an outer skin, an inner skin, a core disposed between the outer skin and the inner skin, and at least one receiver to receive at least one first signal. In at least one embodiment, at least one receiver is disposed within an opening on the outer skin of the EM panel. At least one receiver is an optical sensor(s) and/or a radio frequency (RF) antenna(s). In one or more embodiments, the EM panel further comprises at least one transmitter to transmit at least one second signal. In at least one embodiment, at least one transmitter is disposed within an opening on the outer skin of the EM panel. At least one transmitter is a laser(s) and/or a RF antenna(s).Type: ApplicationFiled: July 23, 2020Publication date: November 12, 2020Inventors: Manny S. Urcia, Jonathan M. St. Clair, Christopher M. La Fata, John G. Castagno, Ordie D. Butterfield, Stephen T. Tyahla, Alec Adams, Lixin Cai
-
Patent number: 10797403Abstract: A dual ultra-wideband electronically scanning antenna linear array and a method for producing same is disclosed. In one embodiment, the antenna is comprised of circuit board-based multi-layered sections with integrated feeds. A first dielectric layer or substrate has a thin metal coating on the bottom surface to form a signal ground and metal coating on the top surface where capacitively loaded radiating dipoles are etched. Each of the dipole elements are connected to an associated conductive antenna feed disposed on a bottom surface of another dielectric layer disposed below the first dielectric layer.Type: GrantFiled: April 26, 2018Date of Patent: October 6, 2020Assignee: THE BOEING COMPANYInventors: Alec Adams, Ming Chen, Lixin Cai
-
Patent number: 10756814Abstract: Systems, methods, and apparatus for an electromagnetic (EM) panel are disclosed. In one or more embodiments, a disclosed electromagnetic (EM) panel comprises an outer skin, an inner skin, a core disposed between the outer skin and the inner skin, and at least one receiver to receive at least one first signal. In at least one embodiment, at least one receiver is disposed within an opening on the outer skin of the EM panel. At least one receiver is an optical sensor(s) and/or a radio frequency (RF) antenna(s). In one or more embodiments, the EM panel further comprises at least one transmitter to transmit at least one second signal. In at least one embodiment, at least one transmitter is disposed within an opening on the outer skin of the EM panel. At least one transmitter is a laser(s) and/or a RF antenna(s).Type: GrantFiled: May 16, 2016Date of Patent: August 25, 2020Assignee: The Boeing CompanyInventors: Manny S. Urcia, Jonathan M. Saint Clair, Christopher M. La Fata, John G. Castagno, Ordie D. Butterfield, Stephen T. Tyahla, Alec Adams, Lixin Cai
-
Patent number: 10686254Abstract: A system, method, and apparatus for an antenna system. The antenna system comprises an aperture structure, a primary radiating slot, a tuning slot, and a stripline feed. The primary radiating slot and the tuning slot are both located in the aperture structure. The stripline feed is located between the primary radiating slot and the tuning slot in the aperture structure.Type: GrantFiled: May 31, 2017Date of Patent: June 16, 2020Assignee: The Boeing CompanyInventors: Lixin Cai, Alec Adams, Manny S. Urcia, Jr.
-
Patent number: 10651566Abstract: Unit cells for phased array antennas are described. The unit cells include a plurality of dipole antennas that are used to form a phased array antenna. In particular, the unit cells that form the phased array antenna each include a plurality of dipole antennas formed on a surface of a substrate that are arranged to collectively form a triangle. A plurality of the unit cells may be linked together to form a triangular lattice array having almost any desired size and aperture, thereby allowing the RF engineer the freedom to achieve a wide variety of performance goals when designing a phased array antenna.Type: GrantFiled: April 23, 2018Date of Patent: May 12, 2020Assignee: The Boeing CompanyInventors: Alec Adams, Lixin Cai
-
Publication number: 20190334252Abstract: A dual ultra-wideband electronically scanning antenna linear array and a method for producing same is disclosed. In one embodiment, the antenna is comprised of circuit board-based multi-layered sections with integrated feeds. A first dielectric layer or substrate has a thin metal coating on the bottom surface to form a signal ground and metal coating on the top surface where capacitively loaded radiating dipoles are etched. Each of the dipole elements are connected to an associated conductive antenna feed disposed on a bottom surface of another dielectric layer disposed below the first dielectric layer.Type: ApplicationFiled: April 26, 2018Publication date: October 31, 2019Applicant: The Boeing CompanyInventors: Alec Adams, Ming Chen, Lixin Cai
-
Publication number: 20190326685Abstract: Unit cells for phased array antennas are described. The unit cells include a plurality of dipole antennas that are used to form a phased array antenna. In particular, the unit cells that form the phased array antenna each include a plurality of dipole antennas formed on a surface of a substrate that are arranged to collectively form a triangle. A plurality of the unit cells may be linked together to form a triangular lattice array having almost any desired size and aperture, thereby allowing the RF engineer the freedom to achieve a wide variety of performance goals when designing a phased array antenna.Type: ApplicationFiled: April 23, 2018Publication date: October 24, 2019Inventors: Alec Adams, Lixin Cai
-
Patent number: 10340584Abstract: A structural panel of an aircraft is constructed with a multiphase antenna embedded inside the structural panel between multiple sheets of fiberglass.Type: GrantFiled: August 8, 2017Date of Patent: July 2, 2019Assignee: The Boeing CompanyInventors: Manny S. Urcia, Andrew S. Niederschulte, Alec Adams, Lixin Cai, Timothy J. Luchini, Justin J. Schell
-
Publication number: 20190051976Abstract: A structural panel of an aircraft is constructed with a multiphase antenna embedded inside the structural panel between multiple sheets of fiberglass.Type: ApplicationFiled: August 8, 2017Publication date: February 14, 2019Applicant: The Boeing CompanyInventors: Manny S. Urcia, JR., Andrew S. Niederschulte, Alec Adams, Lixin Cai, Timothy J. Luchini, Justin J. Schell
-
Publication number: 20180366831Abstract: A system, method, and apparatus for an antenna system. The antenna system comprises an aperture structure, a primary radiating slot, a tuning slot, and a stripline feed. The primary radiating slot and the tuning slot are both located in the aperture structure. The stripline feed is located between the primary radiating slot and the tuning slot in the aperture structure.Type: ApplicationFiled: May 31, 2017Publication date: December 20, 2018Inventors: Lixin Cai, Alec Adams, Manny S. Urcia, Jr.
-
Patent number: 9977122Abstract: A multi-function radio frequency (RF) system may include a shared phased array antenna subsystem for transmitting and receiving radar signals and communications signals. The system may also include an integrated electronics package configured for controlling operation of the shared phased array antenna subsystem. The integrated electronics package may include a modulator/demodulator subsystem. The modulator/demodulator subsystem may include a radar module that is selectively coupled to the shared phased array antenna subsystem for transmitting and receiving radar signals. The radar module is configured to transmit and receive radar signals through the shared phased array antenna subsystem. The modulator/demodulator subsystem may also include a communications module that is selectively coupled to the shared phased array antenna subsystem for transmitting and receiving communications signals.Type: GrantFiled: March 27, 2015Date of Patent: May 22, 2018Assignee: The Boeing CompanyInventors: Marty Allen Pitts, Julio A. Navarro, Lixin Cai
-
Publication number: 20170063454Abstract: Systems, methods, and apparatus for an electromagnetic (EM) panel are disclosed. In one or more embodiments, a disclosed electromagnetic (EM) panel comprises an outer skin, an inner skin, a core disposed between the outer skin and the inner skin, and at least one receiver to receive at least one first signal. In at least one embodiment, at least one receiver is disposed within an opening on the outer skin of the EM panel. At least one receiver is an optical sensor(s) and/or a radio frequency (RF) antenna(s). In one or more embodiments, the EM panel further comprises at least one transmitter to transmit at least one second signal. In at least one embodiment, at least one transmitter is disposed within an opening on the outer skin of the EM panel. At least one transmitter is a laser(s) and/or a RF antenna(s).Type: ApplicationFiled: May 16, 2016Publication date: March 2, 2017Inventors: Manny S. Urcia, Jonathan M. Saint Clair, Christopher M. La Fata, John G. Castagno, Ordie D. Butterfield, Stephen T. Tyahla, Alec Adams, Lixin Cai
-
Publication number: 20160282462Abstract: A multi-function radio frequency (RF) system may include a shared phased array antenna subsystem for transmitting and receiving radar signals and communications signals. The system may also include an integrated electronics package configured for controlling operation of the shared phased array antenna subsystem. The integrated electronics package may include a modulator/demodulator subsystem. The modulator/demodulator subsystem may include a radar module that is selectively coupled to the shared phased array antenna subsystem for transmitting and receiving radar signals. The radar module is configured to transmit and receive radar signals through the shared phased array antenna subsystem. The modulator/demodulator subsystem may also include a communications module that is selectively coupled to the shared phased array antenna subsystem for transmitting and receiving communications signals.Type: ApplicationFiled: March 27, 2015Publication date: September 29, 2016Inventors: Marty Allen Pitts, Julio A. Navarro, Lixin Cai