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:
Oct. 25, 2005
Filed:
Oct. 18, 2000
Olli Salmela, Helsinki, FI;
Markku Koivisto, Espoo, FI;
Mikko Saarikoski, Espoo, FI;
Kalle Jokio, Espoo, FI;
Ali Nadir Arslan, Espoo, FI;
Esa Kemppinen, Helsinki, FI;
Vesa Korhonen, Helsinki, FI;
Teppo Miettinen, Vantaa, FI;
Olli Salmela, Helsinki, FI;
Markku Koivisto, Espoo, FI;
Mikko Saarikoski, Espoo, FI;
Kalle Jokio, Espoo, FI;
Ali Nadir Arslan, Espoo, FI;
Esa Kemppinen, Helsinki, FI;
Vesa Korhonen, Helsinki, FI;
Teppo Miettinen, Vantaa, FI;
Nokia Corporation, Espoo, FI;
Abstract
The invention relates to a device for guiding electromagnetic waves from a wave guide (), in particular a multi-band wave guide, to a transmission line (), in particular a micro strip line, arranged at one end of the wave guide (), comprising coupling means (--) for mechanical fixation and impedance matching between the wave guide () and the transmission line (). It is the object of the invention to improve such a structure in the way that manufacturing is made easier and less expensive than according to prior art. According to the present invention that object is solved in the way that the coupling means comprises at least one dielectric layer () being mechanically connected with the main plane of the transmission line, the geometric dimension of that at least one dielectric layer extending along the propagation direction of the electromagnetic waves being correlated with the center frequency of electromagnetic waves in order to achieve optimised impedance matching.