Multi-resonant, high-impedance electromagnetic surfaces
    1.
    发明授权
    Multi-resonant, high-impedance electromagnetic surfaces 失效
    多谐振,高阻抗电磁表面

    公开(公告)号:US06774867B2

    公开(公告)日:2004-08-10

    申请号:US10327842

    申请日:2002-12-23

    IPC分类号: H01Q1502

    摘要: An artificial magnetic conductor is resonant at multiple resonance frequencies. The artificial magnetic conductor is characterized by an effective media model which includes a first layer and a second layer. Each layer has a layer tensor permittivity and a layer tensor permeability having non-zero elements on the main tensor diagonal only.

    摘要翻译: 人造磁导体以多个共振频率共振。 人造磁性导体的特征在于包括第一层和第二层的有效介质模型。 每个层具有层张量介电常数和仅在主张力对角线上具有非零元素的层张量渗透性。

    Electromagnetic reactive edge treatment
    3.
    发明授权
    Electromagnetic reactive edge treatment 有权
    电磁反应边缘处理

    公开(公告)号:US08035568B2

    公开(公告)日:2011-10-11

    申请号:US12818771

    申请日:2010-06-18

    IPC分类号: H01Q7/00

    摘要: An electromagnetic reactive edge treatment including an array of capacitively-loaded loops is disposed at or near an edge of a conductive wedge. The axes of the loops are oriented parallel to the edge of the wedge. This edge treatment may enhance or suppress the hard diffraction coefficient, depending on the resonant frequency fo of the array of loaded loops. Diffraction of incident waves that are lower (higher) in frequency than fo may be enhanced (suppressed) due to the increase (decrease) in effective permeability of the volume occupied by the array of loops. Applications include controlling antenna patterns, side lobe levels, and backlobe levels for antennas mounted on conductive surfaces near edges or corners.

    摘要翻译: 包括电容负载环阵列的电磁反应边缘处理设置在导电楔的边缘处或附近。 环的轴线平行于楔形件的边缘定向。 这种边缘处理可以根据加载环阵列的共振频率fo来增强或抑制硬衍射系数。 由于循环阵列占有的体积的有效磁导率的增加(减少),可以增强(抑制)频率比fo更低(更高)的入射波的衍射。 应用包括安装在靠近边缘或拐角处的导电表面上的天线的天线方向图,旁瓣电平和背景电平。

    Electromagnetic reactive edge treatment
    4.
    发明授权
    Electromagnetic reactive edge treatment 有权
    电磁反应边缘处理

    公开(公告)号:US07764241B2

    公开(公告)日:2010-07-27

    申请号:US11998316

    申请日:2007-11-29

    IPC分类号: H01Q7/00 H01Q1/00

    摘要: An electromagnetic reactive edge treatment including an array of capacitively-loaded loops is disposed at or near an edge of a conductive wedge. The axes of the loops are oriented parallel to the edge of the wedge. This edge treatment may enhance or suppress the hard diffraction coefficient, depending on the resonant frequency fo of the array of loaded loops. Diffraction of incident waves that are lower (higher) in frequency than fo may be enhanced (suppressed) due to the increase (decrease) in effective permeability of the volume occupied by the array of loops. Applications include controlling antenna patterns, side lobe levels, and backlobe levels for antennas mounted on conductive surfaces near edges or corners.

    摘要翻译: 包括电容负载环阵列的电磁反应边缘处理设置在导电楔的边缘处或附近。 环的轴线平行于楔形件的边缘定向。 这种边缘处理可以根据加载环阵列的共振频率fo来增强或抑制硬衍射系数。 由于循环阵列占有的体积的有效磁导率的增加(减少),可以增强(抑制)频率比fo更低(更高)的入射波的衍射。 应用包括安装在靠近边缘或拐角处的导电表面上的天线的天线方向图,旁瓣电平和背景电平。

    ELECTROMAGNETIC REACTIVE EDGE TREATMENT
    5.
    发明申请
    ELECTROMAGNETIC REACTIVE EDGE TREATMENT 有权
    电磁反应边缘处理

    公开(公告)号:US20080143621A1

    公开(公告)日:2008-06-19

    申请号:US11998316

    申请日:2007-11-29

    IPC分类号: H01Q7/00 H01Q1/00

    摘要: An electromagnetic reactive edge treatment including an array of capacitively-loaded loops is disposed at or near an edge of a conductive wedge. The axes of the loops are oriented parallel to the edge of the wedge. This edge treatment may enhance or suppress the hard diffraction coefficient, depending on the resonant frequency f0) of the array of loaded loops. Diffraction of incident waves that are lower (higher) in frequency than f0 may be enhanced (suppressed) due to the increase (decrease) in effective permeability of the volume occupied by the array of loops. Applications include controlling antenna patterns, side lobe levels, and backlobe levels for antennas mounted on conductive surfaces near edges or corners.

    摘要翻译: 包括电容负载环阵列的电磁反应边缘处理设置在导电楔的边缘处或附近。 环的轴线平行于楔形件的边缘定向。 这种边缘处理可以增强或抑制硬衍射系数,这取决于加载的环阵列的谐振频率f 0 0 0。 由于循环阵列所占据的体积的有效磁导率的增加(降低),可以增强(抑制)频率比f 0 <0 更低(更高)的入射波的衍射。 应用包括安装在靠近边缘或拐角处的导电表面上的天线的天线方向图,旁瓣电平和背景电平。

    ELECTROMAGNETIC REACTIVE EDGE TREATMENT
    7.
    发明申请
    ELECTROMAGNETIC REACTIVE EDGE TREATMENT 有权
    电磁反应边缘处理

    公开(公告)号:US20100315302A1

    公开(公告)日:2010-12-16

    申请号:US12818771

    申请日:2010-06-18

    IPC分类号: H01Q7/00

    摘要: An electromagnetic reactive edge treatment including an array of capacitively-loaded loops is disposed at or near an edge of a conductive wedge. The axes of the loops are oriented parallel to the edge of the wedge. This edge treatment may enhance or suppress the hard diffraction coefficient, depending on the resonant frequency fo of the array of loaded loops. Diffraction of incident waves that are lower (higher) in frequency than fo may be enhanced (suppressed) due to the increase (decrease) in effective permeability of the volume occupied by the array of loops. Applications include controlling antenna patterns, side lobe levels, and backlobe levels for antennas mounted on conductive surfaces near edges or corners.

    摘要翻译: 包括电容负载环阵列的电磁反应边缘处理设置在导电楔的边缘处或附近。 环的轴线平行于楔形件的边缘定向。 这种边缘处理可以根据加载环阵列的共振频率fo来增强或抑制硬衍射系数。 由于循环阵列占有的体积的有效磁导率的增加(减少),可以增强(抑制)频率比fo更低(更高)的入射波的衍射。 应用包括安装在靠近边缘或拐角处的导电表面上的天线的天线方向图,旁瓣电平和背景电平。

    Artificial magnetic conductor surfaces loaded with ferrite-based artificial magnetic materials
    8.
    发明授权
    Artificial magnetic conductor surfaces loaded with ferrite-based artificial magnetic materials 失效
    装有铁素体人造磁性材料的人造磁性导体表面

    公开(公告)号:US07411565B2

    公开(公告)日:2008-08-12

    申请号:US10868382

    申请日:2004-06-15

    IPC分类号: H01Q1/38

    摘要: A magnetically-loaded artificial magnetic conductor surface provides enhanced bandwidth. The structure includes in one embodiment a thumbtack structure with a spacer layer that is loaded with a barium-cobalt hexaferrite based artificial magnetic material. Specifically, the geometry consists of a ground plane covered with thinly sliced ferrite tiles that are metallized and stacked. Each tile has a metal via running through its center that is electrically connected to the plated metallized surfaces. A foam spacer layer resides above the ferrite tiles. Atop the foam spacer layer rests a capacitive surface, which can be realized as a single layer array of metal patches, a multiple layer array of overlapping patches or other planar capacitive geometry.

    摘要翻译: 磁性负载人造磁导体表面提供增强的带宽。 该结构在一个实施例中包括具有间隔层的图钉结构,其间装载有基于钴酸钴的六铁基的人造磁性材料。 具体来说,几何形状由覆盖有薄金属化和堆叠的薄片状铁素体砖的接地层组成。 每个瓦片具有穿过其中心的金属通孔,其电连接到镀覆的金属化表面。 泡沫隔离层位于铁氧体砖的上方。 在泡沫间隔层顶部放置电容表面,其可以实现为金属贴片的单层阵列,重叠贴片的多层阵列或其他平面电容几何形状。

    Low frequency enhanced frequency selective surface technology and applications
    9.
    发明授权
    Low frequency enhanced frequency selective surface technology and applications 有权
    低频增强型频率选择性表面技术及应用

    公开(公告)号:US07071889B2

    公开(公告)日:2006-07-04

    申请号:US10214420

    申请日:2002-08-06

    IPC分类号: H01Q19/00 H01Q15/02

    摘要: DC inductive FSS technology is a printed slow wave structure usable for reduced size resonators in antenna and filter applications of wireless applications. It is a dispersive surface defined in terms of its parallel LC equivalent circuit that enhances the inductance and capacitance of the equivalent circuit to obtain a pole frequency as low as 300 MHz. The effective sheet impedance model has a resonant pole whose free-space wavelength can be greater than 10 times the FSS period. A conductor-backed DCL FSS can create a DC inductive artificial magnetic conductor (DCL AMC), high-impedance surface with resonant frequencies as low as 2 GHz. Lorentz poles introduced into the DCL FSS create multi-resonant DCL AMCs. Antennas fabricated from DCL FSS materials include single-band elements such as a bent-wire monopole on the DCL AMC and multi-band (dual and triple) shorted patches, similar to PIFAs with the patch/lid being a DCL FSS.

    摘要翻译: 直流感应FSS技术是一种印刷慢波结构,可用于无线应用的天线和滤波器应用中的减小尺寸的谐振器。 它是根据其并联LC等效电路定义的分散表面,其增强等效电路的电感和电容,以获得低至300MHz的极点频率。 有效的薄片阻抗模型具有谐振极,其自由空间波长可以大于FSS周期的10倍。 导体支持的DCL FSS可以创建直流感应人造磁导体(DCL AMC),高阻抗表面,谐振频率低至2 GHz。 引入DCL FSS的洛伦兹电极产生多谐振DCL AMC。 由DCL FSS材料制成的天线包括单带元件,例如DCL AMC上的弯曲单极子和多频带(双和三)短路贴片,类似于PIFA,贴片/盖子是DCL FSS。