Patents by Inventor Tak Ki WAN

Tak Ki WAN 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).

  • Antenna circuit and a method of optimisation thereof
    Patent number: 9287624
    Abstract: An antenna circuit is having an impedance circuit which can cancel signal leakage from the input port into the isolation port of a directional coupler. The antenna circuit further comprises a second impedance circuit for optimizing power transfer from the input port to the output port of the directional coupler. Furthermore, the antenna is tunable in order to maximize the reception strength of the antenna. The antenna circuit provides at once the possibility of tuning the antenna strength, optimizing the power transmission and reducing signal jamming by cancelling signal leakage. The antenna finds use as an effective and miniature RFID antenna.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: March 15, 2016
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Tak Ki Wan, Yan Liu, Song He, Dan Yang, Chi Keung Angus Mak
  • ANTENNA CIRCUIT AND A METHOD OF OPTIMISATION THEREOF
    Publication number: 20150109176
    Abstract: An antenna circuit is having an impedance circuit which can cancel signal leakage from the input port into the isolation port of a directional coupler. The antenna circuit further comprises a second impedance circuit for optimising power transfer from the input port to the output port of the directional coupler. Furthermore, the antenna is tunable in order to maximize the reception strength of the antenna. The antenna circuit provides at once the possibility of tuning the antenna strength, optimising the power transmission and reducing signal jamming by cancelling signal leakage. The antenna finds use as an effective and miniature RFID antenna.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 23, 2015
    Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Tak Ki WAN, Yan LIU, Song HE, Dan YANG, Chi Keung Angus MAK