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:
Mar. 01, 2011
Filed:
May. 31, 2006
Jarmo Mäkinen, Vallentuna, SE;
Olov Ekervik, Vallentuna, SE;
Daniel Åkesson, Hâsselby, SE;
Tord Liljevik, Bromma, SE;
Johan Dagerhamn, Åkersberga, SE;
Erik Östlind, Åkersberga, SE;
Jarmo Mäkinen, Vallentuna, SE;
Olov Ekervik, Vallentuna, SE;
Daniel Åkesson, Hâsselby, SE;
Tord Liljevik, Bromma, SE;
Johan Dagerhamn, Åkersberga, SE;
Erik Östlind, Åkersberga, SE;
Powerwave Technologies Sweden AB, Kista, SE;
Abstract
The present invention relates to a device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements. Antenna element feed points are coupled to a common source via a feed line structure having a source connection and feed connection terminals to be connected to the antenna element feed points, the feed line structure being at a distance from and in parallel to a fixed ground plane. A movable element is located adjacent to the feed line structure to change the signal phase of signal components being transferred between the source connection and the respective feed connection terminals. The movable element is movable for effecting a phase shift of the signal components to adjust the beam direction. The device is provided with a detection arrangement for detecting the absolute position of the movable element.