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:
Jul. 11, 2006
Filed:
Dec. 04, 2001
Peter Pääkkönen, Kista, SE;
Andrzej Plotka, Stockholm, SE;
Jurek Dabrowski, Täby, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A directional coupler for radio frequency application, comprising: an input () for receiving a radio frequency input signal; a port () for delivering a radio frequency output signal; a first elongated conductor (), suspended in air between two ground planes, for connecting the input () with the port (); the first conductor () comprising a sandwich structure with a first upper conductive strip (A), a first intermediate layer comprising a dielectric material and a first lower conductive strip (B); a second elongated conductor (), suspended in air between two ground planes, the second elongated conductor () comprising a sandwich structure with a second upper conductive strip (A), a second intermediate layer comprising a dielectric material and a second lower conductive strip (B); said first elongated conductor () and said second elongated conductor () being substantially parallel; said first upper and lower conductive strips and said second upper and lower conductive strips, respectively, having conductive interconnections ().