Patents by Inventor John Z. Lu

John Z. Lu 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).

  • Dual moded stacked microstrip patch antenna
    Publication number: 20090102723
    Abstract: A dual moded stacked microstrip patch antenna includes an integrated first lower antenna element having probes excited at a higher transverse magnetic order mode and a second upper antenna element with probes excited at a lower order transverse magnetic mode. Distinct probe locations and phase offset signals are supplied to each of the probes in each of the first and second antenna elements to support the higher and lower order mode of operation.
    Type: Application
    Filed: October 18, 2007
    Publication date: April 23, 2009
    Inventors: Duane N. Mateychuk, John Z. Lu