Patents by Inventor Duncan Little

Duncan Little 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).

  • Radio frequency (RF) couplers
    Patent number: 9356330
    Abstract: An RF coupler implementable as an integrated circuit includes a first transmission line having a first line portion and a second line portion. A first end of the first transmission line is coupled to an input port for receiving an RF input signal. A second end of the first transmission line is coupled to an output port for providing an RF output signal. The RF coupler further includes a second transmission line formed between the first line portion and the second line portion such that magnetic field produced due to the RF input signal in the first line portion and the second line portion envelops the second transmission line. A first end of the second transmission line is configured as a coupled port for providing a coupled RF signal, and a second end of the second transmission line is coupled to a termination element to form an isolation port.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: May 31, 2016
    Assignee: ANADIGICS, INC.
    Inventors: Daniel Donoghue, Eric Gray, Abid Hussain, Duncan Little, Valter Karavanic