Patents by Inventor Jon Patrick Oliver

Jon Patrick Oliver 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).

  • Folded spiral antenna for a portable radio transceiver and method of forming same
    Patent number: 5929825
    Abstract: A spiral antenna (100) having a feed-point end and a termination end for use within a portable two-way radio housing includes a ground substrate (102) and a number of spiral elements (103, 105) having a number of segments that form two or more spiral shapes. A shorting stub (107) connects the planar elements at a termination end for effectively increasing the feed-point impedance of the spiral antenna (100). The spiral elements (103, 105) may be positioned in a planar arrangement (FIGS. 1 and 2) or may be stacked in separate planes (FIGS. 3 and 4) for forming a limited space antenna having a substantially 50 ohm feed-point end impedance at resonance.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: July 27, 1999
    Assignee: Motorola, Inc.
    Inventors: Feng Niu, Wei-Yean Howng, Jon Patrick Oliver