Patents by Inventor Jesada Sivaraks

Jesada Sivaraks 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).

  • Publication number: 20030098814
    Abstract: A compressed multiple band loop antenna that has multiple superimposed compressed loops. Each compressed loop is formed from numerous segments arrayed in multiple diverse directions so that the enclosed area of that loop and the overall size of the antenna are decreased. Multiple loops are arrayed and superimposed to provide multiple frequency bands of operation and are used to broaden the useful bandwidth of individual-bands. The small size of the compressed antenna facilitates its use in small mobile communications devices requiring internal antennas that operate in close proximity to conductive surfaces. Multiple loops are arrayed in several configurations that include nested and non-nested loops as well as closely located and spatially separated superimposed loops.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 29, 2003
    Inventors: Walter John Keller, Osbaldo Jose Romero, Jesada Sivaraks
  • Publication number: 20030096637
    Abstract: A multi-band compressed loop antenna is formed of multiple, directly and/or indirectly connected, compressed loops for use in a communication device to exchange energy over multiple frequency bands of operation. Each loop is formed by multiple and numerous segments arrayed in multiple diverse directions which forms a compressed loop so that the area of the antenna is decreased by combining such compressed loops. The multiple loops provide for resonances in multiple discrete frequency bands of operation. The multiple loops are arrayed in different configurations that include nested (concentric) and non-nested (non-concentric) loops as well as closely located and separated loops on the same or different layers of single or multi-layer structures.
    Type: Application
    Filed: November 9, 2001
    Publication date: May 22, 2003
    Inventors: Walter John Keller, Osbaldo Jose Romero, Jesada Sivaraks, Robert Paul Garcia