The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2005
Filed:
May. 28, 2002
Outi Kivekäs, Espoo, FI;
Jani Ollikainen, Helsinki, FI;
Jaakko Juntunen, Espoo, FI;
Pertti Vainikainen, Helsinki, FI;
Outi Kivekäs, Espoo, FI;
Jani Ollikainen, Helsinki, FI;
Jaakko Juntunen, Espoo, FI;
Pertti Vainikainen, Helsinki, FI;
Filtronic LK Oy, Kempele, FI;
Abstract
The invention relates to a dielectric antenna, particularly suited to portable radio devices. The feed conductor () 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 () 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 () 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.