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:
Aug. 17, 2010
Filed:
Dec. 08, 2004
Ola Tageman, Gothenburg, SE;
Spartak Gevorgyan, Gothenburg, SE;
Anatoli Deleniv, Gothenburg, SE;
Pierre Filhol, Pessac, FR;
Vladimir Cherman, Chavannes pres Renens, CH;
Ola Tageman, Gothenburg, SE;
Spartak Gevorgyan, Gothenburg, SE;
Anatoli Deleniv, Gothenburg, SE;
Pierre Filhol, Pessac, FR;
Vladimir Cherman, Chavannes pres Renens, CH;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A lens () is disclosed for steering the exit direction (Ω) of an incident electromagnetic wave. The lens comprises a main body () of a ferroelectric material with a first main surface () and a first transformer (). The electromagnetic wave enters and exits the lens through the transformer, and the lens comprises means () for creating a DC-field in a first direction in the main body. The main body () of ferroelectric material comprises a plurality (-NN,-NN) of slabs of the ferroelectric material, each slab also comprising a first () and a second electrode of a conducting material. The means for creating a DC-field can create a gradient DC-field in the first direction using the first and second electrodes, so that the dielectric constant in the main body will also be a gradient in the first direction, thus enabling steering of the existing electromagnetic wave.