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:
Feb. 26, 2013
Filed:
Oct. 16, 2006
Lars Manholm, Göteborg, SE;
Mats H Andersson, Göteborg, SE;
Martin Johansson, Molndal, SE;
Sven Oscar Petersson, Savedalen, SE;
Lars Manholm, Göteborg, SE;
Mats H Andersson, Göteborg, SE;
Martin Johansson, Molndal, SE;
Sven Oscar Petersson, Savedalen, SE;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
The present invention relates to a system for changing the radiation pattern shape of an antenna array during electrical tilting. The antenna array has multiple antenna elements, and the system comprises a phase-shifting device provided with a primary port configured to receive a transmit signal, and multiple secondary ports configured to provide phase shifted output signals to each antenna element. The system further comprises a phase-taper device that changes phase taper over the antenna elements, and thus the beam shape, with tilt angle θ. The invention is adapted for use in down-link as well as up-link within a wireless communication system.