Patents by Inventor Guoan Wang
Guoan Wang 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: 11920236Abstract: A composite coating layer for coating a NdFeB rare earth magnet includes a first coating layer and a second coating layer formed over a surface of the first coating layer. The first coating layer includes a Nd coating layer, a Pr coating layer, or an alloy coating layer including two or more of Nd, Pr, and Cu. The second coating layer includes a Tb coating layer.Type: GrantFiled: June 24, 2021Date of Patent: March 5, 2024Assignees: SANVAC (BEIJING) MAGNETICS CO., LTD., BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.Inventors: Guoan Chen, Bin Fang, Haojie Wang, Yugang Zhao
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Publication number: 20230314125Abstract: A line-scanning chromatic confocal sensor, including a line light source, a dispersion assembly, a receiving assembly, a slit and a processing assembly. The line light source is configured to output a continuous, uniform and broad-spectrum linear light beam. The dispersion assembly includes a first collimating element, a first dispersing element and a first focusing element. The receiving assembly includes a second focusing element, a second dispersing element and a second collimating element, and is arranged symmetrically with the dispersion assembly. The slit is configured to filter out component with a non-focusing wavelength from the reflected light. The processing assembly includes a third collimating element, a third dispersing element, a third focusing element and an image sensor.Type: ApplicationFiled: May 8, 2023Publication date: October 5, 2023Inventors: Qiancheng WANG, GuoAn WANG, Kai HUANG, Guodong XIE, Fei ZHOU
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Patent number: 11744006Abstract: Described herein are systems and methods for a design method and new interconnect structures with incorporated interdigital trapezoidal tabs structures enabled with materials with either larger permittivity or permeability for improved signal integrity.Type: GrantFiled: May 25, 2021Date of Patent: August 29, 2023Assignee: University of South CarolinaInventors: Guoan Wang, Jinqun Ge
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Publication number: 20230207998Abstract: An electrically tunable radio frequency phase shifter with compact 3-D structure that integrates both ferromagnetic and ferroelectric materials, and utilizes 3-D structure to increase the tuning efficiency and achieve miniaturization.Type: ApplicationFiled: February 16, 2023Publication date: June 29, 2023Applicant: University of South CarolinaInventors: Tengxing Wang, Guoan Wang
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Patent number: 11626654Abstract: An antenna assembly includes an antenna and a heatsink. The antenna may be configured to support radio communications and generate heat, and may include a forward antenna surface configured to transmit or receive communications signals and a rear antenna surface that is affixed to a substrate. The heatsink structure may be positioned to be within a forward electromagnetic field that is emitted from the forward antenna surface and away from the rear antenna surface. The heatsink structure may be configured to perform a convection operation between the antenna and a fluid to perform thermal dissipation of the heat from the antenna.Type: GrantFiled: May 14, 2021Date of Patent: April 11, 2023Assignee: UNIVERSITY OF SOUTH CAROLINAInventors: Guoan Wang, Jinqun Ge, Sanjib Sur, Srihari Nelakuditi
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Patent number: 11594797Abstract: An electrically tunable radio frequency phase shifter with compact 3-D structure that integrates both ferromagnetic and ferroelectric materials, and utilizes 3-D structure to increase the tuning efficiency and achieve miniaturization.Type: GrantFiled: January 24, 2019Date of Patent: February 28, 2023Assignee: Universtiy of South CarolinaInventors: Tengxing Wang, Guoan Wang
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Patent number: 11568671Abstract: A fingerprint recognition detection circuit includes an operational amplifier, an integrating capacitor and a first switch connected in series, and a second switch. A non-inverting input terminal of the operational amplifier is coupled to a reference voltage terminal, and an inverting input terminal of the operational amplifier is coupled to a fingerprint sensing capacitor. The integrating capacitor and the first switch are coupled between the inverting input terminal of the operational amplifier and an output terminal of the operational amplifier. The second switch is coupled between the inverting input terminal of the operational amplifier and the output terminal of the operational amplifier.Type: GrantFiled: April 10, 2020Date of Patent: January 31, 2023Assignees: BEIJING BOE SENSOR TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Binbin Liu, Chen Meng, Wei Shi, Wenjie Zhong, Zhong Hu, Yongbo Wang, Zhenghua Lu, Dahai Hu, Guo Liu, Guoan Wang, Jiarong Liu
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Patent number: 11394125Abstract: A reconfigurable antenna apparatus may include an antenna assembly and control circuitry. The antenna assembly may include an antenna patch array having a plurality of antenna patches and a switch array having plurality of switches. Each switch of the plurality switches may be electronically controllable to transition between states including a conducting state and a non-conducting state. Each switch may be electrically connected between two of the antenna patches of the antenna array. The control circuitry may be configured to control the states of the switches of the switch array to operate the antenna patch array in a first communications mode at a first wavelength, and control the states of the switches of the switch array to operate the antenna patch array in a second communications mode at a second wavelength.Type: GrantFiled: August 21, 2020Date of Patent: July 19, 2022Assignee: University of South CarolinaInventors: Sanjib Sur, Guoan Wang, Srihari Nelakuditi
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Publication number: 20220114827Abstract: A fingerprint recognition detection circuit includes an operational amplifier, an integrating capacitor and a first switch connected in series, and a second switch. A non-inverting input terminal of the operational amplifier is coupled to a reference voltage terminal, and an inverting input terminal of the operational amplifier is coupled to a fingerprint sensing capacitor. The integrating capacitor and the first switch are coupled between the inverting input terminal of the operational amplifier and an output terminal of the operational amplifier. The second switch is coupled between the inverting input terminal of the operational amplifier and the output terminal of the operational amplifier, and the second switch is connected in parallel with the integrating capacitor and the first switch connected in series.Type: ApplicationFiled: April 10, 2020Publication date: April 14, 2022Inventors: Binbin LIU, Chen MENG, Wei SHI, Wenjie ZHONG, Zhong HU, Yongbo WANG, Zhenghua LU, Dahai HU, Guo LIU, Guoan WANG, Jiarong LIU
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Publication number: 20210378089Abstract: Described herein are systems and methods for a design method and new interconnect structures with incorporated interdigital trapezoidal tabs structures enabled with materials with either larger permittivity or permeability for improved signal integrity.Type: ApplicationFiled: May 25, 2021Publication date: December 2, 2021Applicant: University of South CarolinaInventors: Guoan Wang, Jinqun Ge
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Publication number: 20210359389Abstract: An antenna assembly includes an antenna and a heatsink. The antenna may be configured to support radio communications and generate heat, and may include a forward antenna surface configured to transmit or receive communications signals and a rear antenna surface that is affixed to a substrate. The heatsink structure may be positioned to be within a forward electromagnetic field that is emitted from the forward antenna surface and away from the rear antenna surface. The heatsink structure may be configured to perform a convection operation between the antenna and a fluid to perform thermal dissipation of the heat from the antenna.Type: ApplicationFiled: May 14, 2021Publication date: November 18, 2021Inventors: Guoan Wang, Jinqun Ge, Sanjib Sur, Srihari Nelakuditi
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Publication number: 20210119346Abstract: A reconfigurable antenna apparatus may include an antenna assembly and control circuitry. The antenna assembly may include an antenna patch array having a plurality of antenna patches and a switch array having plurality of switches. Each switch of the plurality switches may be electronically controllable to transition between states including a conducting state and a non-conducting state. Each switch may be electrically connected between two of the antenna patches of the antenna array. The control circuitry may be configured to control the states of the switches of the switch array to operate the antenna patch array in a first communications mode at a first wavelength, and control the states of the switches of the switch array to operate the antenna patch array in a second communications mode at a second wavelength.Type: ApplicationFiled: August 21, 2020Publication date: April 22, 2021Inventors: Sanjib Sur, Guoan Wang, Srihari Nelakuditi
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Patent number: 10832989Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: GrantFiled: September 26, 2019Date of Patent: November 10, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Patent number: 10586752Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: GrantFiled: June 5, 2018Date of Patent: March 10, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Publication number: 20200020612Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: ApplicationFiled: September 26, 2019Publication date: January 16, 2020Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Publication number: 20190229388Abstract: An electrically tunable radio frequency phase shifter with compact 3-D structure that integrates both ferromagnetic and ferroelectric materials, and utilizes 3-D structure to increase the tuning efficiency and achieve miniaturization.Type: ApplicationFiled: January 24, 2019Publication date: July 25, 2019Applicant: University of South CarolinaInventors: Tengxing Wang, Guoan Wang
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Publication number: 20180286785Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: ApplicationFiled: June 5, 2018Publication date: October 4, 2018Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Patent number: 10037931Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: GrantFiled: August 4, 2017Date of Patent: July 31, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Publication number: 20170330821Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: ApplicationFiled: August 4, 2017Publication date: November 16, 2017Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Patent number: 9780429Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.Type: GrantFiled: October 16, 2015Date of Patent: October 3, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang