Patents by Inventor Outi Kivekäs

Outi Kivekäs 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).

  • Patent number: 6903692
    Abstract: The invention relates to a dielectric antenna, particularly suited to portable radio devices. The feed conductor (231) of the antenna is shaped so that it at the same time in itself serves as a radiator in the same frequency range as the dielectric resonator (220) of the antenna. The resonance frequencies of the feed conductor and the dielectric resonator are advantageously arranged to be so near to each other that there is formed a united operation band. The feed conductor is advantageously located on a surface (223) of the dielectric element. The structure may also include parasitic conductors. For the antenna according to the invention, there is obtained a larger bandwidth than for corresponding antennas of the prior art. Moreover, the air gaps between the feed conductor and the dielectric element are avoided, as well as resulting changes in the electric properties.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 7, 2005
    Assignee: Filtronic LK Oy
    Inventors: Outi Kivekäs, Jani Ollikainen, Jaakko Juntunen, Pertti Vainikainen
  • Patent number: 6650295
    Abstract: A radio antenna comprising a tuning component, such as a transmission line, coupled to the radiating element for providing a frequency shift from the resonant frequency, and an adjustment mechanism for adjusting the frequency shift by effectively changing the length of the transmission line. The adjustment mechanism comprises one or more extension lines, and a switching mechanism, which can be closed to couple one or more of the extension lines to the transmission line. The tuning component can also be one or more lumped reactive elements.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: November 18, 2003
    Assignee: Nokia Corporation
    Inventors: Jani Ollikainen, Outi Kivekäs, Pertti Vainikainen