Patents by Inventor Liza C. Ma

Liza C. Ma 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).

  • Hooked turnstile antenna for navigation and communication
    Patent number: 8466837
    Abstract: An antenna includes a first antenna element and a second antenna element, wherein the first antenna element and the second antenna element are both configured in a hook shape. The antenna also includes a first impedance matching circuit coupled to the first antenna element, wherein the first impedance matching circuit includes a first plurality of filters and a second impedance matching circuit coupled to the second antenna element, wherein the second impedance matching circuit includes a second plurality of filters.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: June 18, 2013
    Assignee: Navcom Technology Inc.
    Inventors: Mark L. Rentz, Liza C. Ma
  • Hooked Turnstile Antenna for Navigation and Communication
    Publication number: 20100164831
    Abstract: An antenna includes a first antenna element and a second antenna element, wherein the first antenna element and the second antenna element are both configured in a hook shape. The antenna also includes a first impedance matching circuit coupled to the first antenna element, wherein the first impedance matching circuit includes a first plurality of filters and a second impedance matching circuit coupled to the second antenna element, wherein the second impedance matching circuit includes a second plurality of filters.
    Type: Application
    Filed: February 24, 2009
    Publication date: July 1, 2010
    Inventors: Mark L. Rentz, Liza C. Ma