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:
Jan. 17, 2012
Filed:
May. 08, 2007
Petteri Annamaa, Oulunsalo, FI;
Pertti Nissinen, Kempele, FI;
Petteri Annamaa, Oulunsalo, FI;
Pertti Nissinen, Kempele, FI;
Pulse Finland Oy, , FI;
Abstract
A dielectric dual antenna () intended especially for small-sized radio apparatuses, with one partial antenna () of which is implemented the lower operating band of the antenna and with the second partial antenna () the upper operating band. The partial antennas have a shared feed point (FP) in the antenna structure, e.g. at the end of a radiating element () of one partial antenna, in which case the other partial antenna receives its feed galvanically through said radiating element by a short intermediate conductor (). The partial antennas are located so that their substrates () are heads face to face, and the main directions of the radiating elements i.e. the conductive coatings of the substrates starting from the shared feed point are opposing. The tunings of the partial antennas corresponding to different operating bands are obtained independent from each other without discrete matching components.