Patents by Inventor Chien M. Ta

Chien M. Ta 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).

  • High-isolation transmit/receive switch on CMOS for millimeter-wave applications
    Patent number: 8103221
    Abstract: A CMOS monolithic transmit/receive switch comprises a single pole double throw switch (SPDT) module operable to selectively connect an antenna port to either a transmit port or to a receive port. A transmit matching network comprising a first transmission line matches the impedance of the transmit port of the SPDT module to a transmit impedance, and a first shunt transistor is operable to selectively ground a transmitter end of the first transmission line. A receive matching network comprising a second transmission line matches the impedance of the receive port of the SPDT module to a receive impedance, and a second shunt transistor is operable to selectively ground a receiver end of the second transmission line.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: January 24, 2012
    Assignee: National ICT Australia Limited
    Inventors: Chien M. Ta, Stan Skafidas, Rob Evans
  • HIGH-ISOLATION TRANSMIT/RECEIVE SWITCH ON CMOS FOR MILLIMETER-WAVE APPLICATIONS
    Publication number: 20090298443
    Abstract: A CMOS monolithic transmit/receive switch comprises a single pole double throw switch (SPDT) module operable to selectively connect an antenna port to either a transmit port or to a receive port. A transmit matching network comprising a first transmission line matches the impedance of the transmit port of the SPDT module to a transmit impedance, and a first shunt transistor is operable to selectively ground a transmitter end of the first transmission line. A receive matching network comprising a second transmission line matches the impedance of the receive port of the SPDT module to a receive impedance, and a second shunt transistor is operable to selectively ground a receiver end of the second transmission line.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Applicant: NATIONAL ICT AUSTRALIA LIMITED
    Inventors: Chien M. Ta, Stan Skafidas, Rob Evans