Patents by Inventor Safieddin Safavi-Naeni

Safieddin Safavi-Naeni 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).

  • Patch antenna
    Patent number: 7427957
    Abstract: A patch antenna for achieving a vertically-polarized radiation pattern is described. The patch antenna includes a closed-curve slot within which a signal feed point is located. Parasitic slots are disposed outside or inside the closed-curve slot. In one embodiment, the closed-curve slot is a ring slot and the parasitic slots are arc slots having a common center point with the ring slot. The antenna may further include a lower patch capable of producing a different radiation pattern with different polarization and at a different frequency band, to result in a dual-band antenna. The dual-band antenna may operate in the 5.9 GHz DSRC and 1.575 GHz GPS bands.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: September 23, 2008
    Assignee: Mark IV IVHS, Inc.
    Inventors: Gholamreza Zeinolabedin Rafi, Safieddin Safavi-Naeni, Alastair Malarky
  • PATCH ANTENNA
    Publication number: 20080204326
    Abstract: A patch antenna for achieving a vertically-polarized radiation pattern is described. The patch antenna includes a closed-curve slot within which a signal feed point is located. Parasitic slots are disposed outside or inside the closed-curve slot. In one embodiment, the closed-curve slot is a ring slot and the parasitic slots are arc slots having a common center point with the ring slot. The antenna may further include a lower patch capable of producing a different radiation pattern with different polarization and at a different frequency band, to result in a dual-band antenna. The dual-band antenna may operate in the 5.9 GHz DSRC and 1.575 GHz GPS bands.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Inventors: Gholamreza Zeinolabedin Rafi, Safieddin Safavi-Naeni, Alastair Malarky