Ferroelectric lens
    1.
    发明授权
    Ferroelectric lens 有权
    铁电镜头

    公开(公告)号:US07777683B2

    公开(公告)日:2010-08-17

    申请号:US11721271

    申请日:2004-12-08

    IPC分类号: H01Q19/06

    CPC分类号: H01Q15/04 H01Q3/44

    摘要: 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.

    摘要翻译: 公开了用于转向入射电磁波的出射方向(&OHgr)的透镜(300,500)。 透镜包括具有第一主表面(207,507)和第一变压器(220,222)的铁电材料的主体(210,510)。 电磁波通过变压器进入和离开透镜,透镜包括用于在主体中沿第一方向产生DC场的装置(370,380)。 铁电材料的主体(210,510)包括铁电材料的多个(21011-210NN,51011-510NN)板,每个板还包括导电材料的第一(403,603)和第二电极。 用于产生DC场的装置可以使用第一和第二电极在第一方向上产生梯度DC场,使得主体中的介电常数也将是第一方向上的梯度,从而能够使 现有的电磁波。