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54 条记录 (耗时 0.019 秒)

    Low cross-polarization microstrip patch radiator
    41.
    发明申请
    Low cross-polarization microstrip patch radiator 失效
    低交叉极化微带贴片散热器

    公开(公告)号：US20020089452A1

    公开(公告)日：2002-07-11

    申请号：US10002240

    申请日：2001-11-15

    发明人： Raymond L. Lovestead

    IPC分类号： H01Q001/38 ,  H01Q001/48

    CPC分类号： H01Q9/0478 ,  H01Q5/378 ,  H01Q9/0407 ,  H01Q9/0414 ,  H01Q9/0442

    摘要： A microstrip patch radiator has parallel conductive strips that are connected at opposite ends by conductive connecting strips and separated by slits. The slits are parallel to the direction of the desired patch currents, and perpendicular to the undesired currents, to provide a low impedance path for currents generating the desired antenna polarization, and a high impedance path for orthogonal currents generating the undesired, cross-polarized radiation of the patch.

    摘要翻译： 微带贴片散热器具有平行的导电条，其在相对端通过导电连接条连接并且被狭缝分开。 这些狭缝平行于所需贴片电流的方向，并垂直于不需要的电流，为产生所需天线极化的电流提供低阻抗路径，以及产生不需要的交叉极化辐射的正交电流的高阻抗路径 的补丁。

    Grating lobe cancellation
    42.
    发明授权
    Grating lobe cancellation 有权

    公开(公告)号：US11791570B1

    公开(公告)日：2023-10-17

    申请号：US17868952

    申请日：2022-07-20

    申请人： Naval Information Warfare Center Pacific

    发明人： Jia-Chi Samuel Chieh

    IPC分类号： H01Q21/29 ,  H01P5/16 ,  H01Q9/04 ,  H01Q21/10

    CPC分类号： H01Q21/293 ,  H01P5/16 ,  H01Q9/0478 ,  H01Q21/10

    摘要： A method for radiating a co-located antenna including radiating the co-located antenna using a dual mode, where the co-located antenna has an inter-element spacing of about 1λ, and the dual mode includes a TM11 mode and a TM21 mode. The TM11 mode is radiated to generate a TM11 far field pattern, where the TM11 mode has a broadside pattern characterized with a beam peak at broadside and the TM11 mode produces grating lobes in addition to the beam peak at broadside. The TM21 mode is radiated to generate a TM21 far field pattern orthogonal to the TM11 far field pattern, thereby causing the TM21 mode to produce a null at broadside to suppress the grating lobes produced by the TM11 mode.

    TRANSCEIVER DEVICE AND ASSOCIATED ANTENNA
    44.
    发明申请
    TRANSCEIVER DEVICE AND ASSOCIATED ANTENNA 审中-公开

    公开(公告)号：US20180145413A1

    公开(公告)日：2018-05-24

    申请号：US15876667

    申请日：2018-01-22

    申请人： THALES

    发明人： Vincent Petit ,  Bruno Louis ,  Christian Renard ,  Laurent Fedorowicz

    IPC分类号： H01Q9/04

    CPC分类号： H01Q9/0435 ,  H01Q9/0457 ,  H01Q9/0478 ,  H01Q23/00

    摘要： A transceiver device and associated antenna are disclosed. In one aspect, the transceiver device combines first and second transceiver modules with a transceiver capability including a substantially planar radiating element and including a central point. Each transceiver module is a transceiver module coupled with the transceiver capability so as to excite a pair of excitation points of the radiating element, the excitation points of one pair being arranged symmetrically relative to the central point of the radiating element. The first and second transceiver modules respectively excite a first pair of excitation points arranged in a first direction of the radiating element and a second pair of excitation points arranged in a second direction of the radiating element, the first and second directions being mutually orthogonal.

    SOLDERLESS CIRCULARLY POLARIZED MICROWAVE ANTENNA ELEMENT
    48.
    发明申请
    SOLDERLESS CIRCULARLY POLARIZED MICROWAVE ANTENNA ELEMENT 审中-公开
    无铅圆极化微波天线元件

    公开(公告)号：US20130050048A1

    公开(公告)日：2013-02-28

    申请号：US13222575

    申请日：2011-08-31

    申请人： David Green ,  Cornelis Frederik Du Toit

    发明人： David Green ,  Cornelis Frederik Du Toit

    IPC分类号： H01Q1/50 ,  H01Q9/04

    CPC分类号： H01Q23/00 ,  H01Q9/0478 ,  H01Q21/30

    摘要： Disclosed herein is an antenna feed design for transmitting or receiving a circularly polarized microwave signal, and a communication device using that antenna feed design. Resonating disks are bowl-shaped to balance E-plane and H-plane magnetic field patterns, decreasing cross-polarization, and providing mechanical rigidity. A non-planar circuit replaces planar microstrip transmission lines for transmitting the signal, with 90° phase shifts, from an input point to excitation points. This non-planar circuit overcomes some of the layout problems encountered in planar circuits. It maintains impedance matching from the input point to the excitation points by progressively tapering down the characteristic transmission line impedance of each successive section. The non-planar circuit has sufficient mechanical strength and rigidity to allow it to be supported at only two anchor points. Similarly, the non-planar disks are also of sufficient strength to require only a single anchor point each. Thus, the antenna parts do not require any additional dielectric substrate support, and all parts are DC grounded. The use of fingers surrounding the ground plane and extending towards the resonating disks results in improved off-boresight polarization. All components of the antenna feed are built and combined without the use of solder or dielectric substrate support, creating a stable, corrosion-resistant, low-cross polarization antenna.

    摘要翻译： 本文公开了一种用于发送或接收圆偏振微波信号的天线馈送设计，以及使用该天线馈送设计的通信设备。 谐振盘是碗状的，以平衡E平面和H平面磁场图案，减少交叉极化，并提供机械刚度。 非平面电路代替用于从输入点到激励点传输具有90°相移的信号的平面微带传输线。 该非平面电路克服了平面电路中遇到的一些布局问题。 它通过逐渐减小每个连续部分的特性传输线阻抗来保持从输入点到激励点的阻抗匹配。 非平面电路具有足够的机械强度和刚度，以允许其仅在两个锚定点处被支撑。 类似地，非平面盘也具有足够的强度，每个仅需要一个锚定点。 因此，天线部件不需要任何额外的电介质基板支撑，并且所有部件都是直流接地的。 使用围绕接地平面并且朝着谐振盘延伸的指状物导致改进的远视偏振。 天线馈电的所有组件都被构建和组合，而不使用焊料或电介质基板支撑，产生稳定的，耐腐蚀的低交叉极化天线。

    Dual polarization planar radiating element and array antenna comprising such a radiating element
    49.
    发明授权
    Dual polarization planar radiating element and array antenna comprising such a radiating element 有权
    双极化平面辐射元件和包括这种辐射元件的阵列天线

    公开(公告)号：US08248306B2

    公开(公告)日：2012-08-21

    申请号：US12578831

    申请日：2009-10-14

    申请人： Herve Legay ,  Daniele Bresciani ,  Renaud Chiniard

    发明人： Herve Legay ,  Daniele Bresciani ,  Renaud Chiniard

    IPC分类号： H01Q1/38

    CPC分类号： H01Q9/0478 ,  H01Q9/0464

    摘要： A dual-polarization planar radiating element having an external metal grid, at least one metal patch concentric with the external metal grid and a cavity separating the metal grid and the metal patch, the grid and the patch having a polygonal shape delimited by at least four pairwise opposite sides, and two orthogonal directions of polarization associated with two orthogonal electric fields Ev and Eh, at least one of the directions of polarization being parallel to two sides of the polygon. Each side of the metal patch parallel to a direction of polarization is linked electrically to a zone of the external grid where one of the electric fields Ev or Eh is a minimum. The invention exhibits the advantage of reducing the phenomenon of electrostatic discharges in the planar radiating elements without significantly modifying the response of the radiating element subjected to an orthogonally polarized wave.

    摘要翻译： 具有外部金属网格的双极化平面辐射元件，与外部金属网格同心的至少一个金属贴片和分隔金属栅格和金属贴片的空腔，栅格和贴片具有由至少四个 成对的相对侧和与两个正交电场Ev和Eh相关联的两个正交正交方向，极化方向中的至少一个平行于多边形的两侧。 平行于偏振方向的金属贴片的每一侧电连接到电场Ev或Eh中的一个最小的外部格栅的区域。 本发明具有减少平面辐射元件中的静电放电现象的优点，而不会明显地改变经受正交极化波的辐射元件的响应。

    Method and system for a single-fed patch antenna having improved axial ratio performance
    50.
    发明申请
    Method and system for a single-fed patch antenna having improved axial ratio performance 审中-公开
    具有改进的轴比性能的单馈贴片天线的方法和系统

    公开(公告)号：US20060097922A1

    公开(公告)日：2006-05-11

    申请号：US10983603

    申请日：2004-11-09

    申请人： Mohamed Mahmoud

    发明人： Mohamed Mahmoud

    IPC分类号： H01Q1/38

    CPC分类号： H01Q9/0478 ,  H01Q9/0428

    摘要： A micro-strip antenna includes a conducting ground plane and a dielectric substrate mounted above the conducting ground plane. A patch element is mounted above the dielectric substrate and configured to produce an antenna pattern. The antenna pattern is formed by a number of linear polarization components. The patch element includes a single feed point extending through the conducting ground plane and the dielectric substrate. Two or more notches within the patch element are configured to perturb each of the linear polarization components.

    摘要翻译： 微带天线包括安装在导电接地平面上方的导电接地平面和电介质基片。 贴片元件安装在电介质基板上方并被配置为产生天线图案。 天线图案由多个线偏振分量形成。 贴片元件包括延伸穿过导电接地平面和电介质基片的单个馈电点。 贴片元件内的两个或更多个凹口配置成扰乱每个线性偏振分量。