Ferroelectric lens
Patent, 2010

A lens (300, 500) is disclosed for steering the exit direction (Ω) of an incident electromagnetic wave. The lens comprises a main body (210, 510) of a ferroelectric material with a first main surface (207, 507) and a first transformer (220, 222). The electromagnetic wave enters and exits the lens through the transformer, and the lens comprises means (370, 380) for creating a DC-field in a first direction in the main body. The main body (210, 510) of ferroelectric material comprises a plurality (21011-210NN, 51011-510NN) of slabs of the ferroelectric material, each slab also comprising a first (403, 603) 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


Ola Tageman

Spartak Gevorgian

Chalmers, Teknisk fysik, Fysikalisk elektronik

Anatoli Deleniv

Chalmers, Teknisk fysik, Fysikalisk elektronik

Pierre Filhol

Vladimir Sherman

Telefonaktiebolaget L M Ericsson

US 7777683 B2

US 11/721,271


Elektroteknik och elektronik

Mer information

Senast uppdaterat