公开(公告)号：US11860271B2

公开(公告)日：2024-01-02

申请号：US17403873

申请日：2021-08-16

申请人： Meteorological Observation Centre of China Meteorological Administration

发明人： Yuchun Gao ,  Chen Li ,  Yubao Chen ,  Hu Chen ,  Changxing Li ,  Jianbing Lu ,  Haihe Liang ,  Xiaopeng Wang ,  Yingchun Chen ,  Zhichao Bu ,  Xu Han ,  Nan Shao ,  Jie Liu

IPC分类号： G01S13/95 ,  G01S7/41 ,  H01Q19/195 ,  G01S13/02

CPC分类号： G01S13/95 ,  G01S7/415 ,  H01Q19/195 ,  G01S2013/0245

摘要： The present disclosure relates to spherical dual-polarization phased array weather radar. The spherical dual-polarization phased array weather radar comprises a spherical crown phased array antenna module, a digital transceiver module and a signal processing module, wherein the spherical crown phased array antenna module comprises a spherical support frame and a plurality of dual-polarization micro-strip radiation units; the dual-polarized micro-strip radiation units are tightly arranged on the spherical support frame; the spherical crown phased array antenna module is used for detecting weather; wireless transmission is carried out between the digital transceiver module and the spherical crown phased array antenna module; the digital transceiver module is used for generating a frequency modulation signal or a phase coding signal required for detecting meteorological targets and receiving an echo signal reflected by the target; and the signal processing module is connected with the digital transceiver module.

公开(公告)号：US20200343953A1

公开(公告)日：2020-10-29

申请号：US16927225

申请日：2020-07-13

申请人： Movandi Corporation

发明人： Kartik SRIDHARAN ,  Ahmadreza ROFOUGARAN ,  Michael BOERS ,  Seunghwan YOON ,  Sam GHARAVI ,  Donghyup SHIN ,  Farid SHIRINFAR ,  Stephen WU ,  Maryam ROFOUGARAN

IPC分类号： H04B7/06 ,  H01Q19/19 ,  H01Q19/195 ,  H01Q1/52 ,  H01Q3/46

摘要： A system, in a programmable active reflector (AR) device associated with a first radio frequency (RF) device and a second RF device, receives a request and associated metadata from the second RF device via a first antenna array. Based on the received request and associated metadata, one or more antenna control signals are received from the first RF device. The programmable AR device is dynamically selected and controlled by the first RF device based on a set of criteria. A controlled plurality of RF signals is transmitted, via a second antenna array, to the second RF device within a transmission range of the programmable AR device based on the associated metadata. The controlled plurality of RF signals are cancelled at the second RF device based on the associated metadata.

公开(公告)号：US20200153105A1

公开(公告)日：2020-05-14

申请号：US16186088

申请日：2018-11-09

申请人： HUGHES NETWORK SYSTEMS, LLC

发明人： Bingqian LU ,  Hamad ALSAWAHA ,  Peter HOU ,  Thomas JACKSON

IPC分类号： H01Q15/24 ,  H01Q25/00 ,  H01Q19/195 ,  H01Q13/02

摘要： An apparatus and method for mitigating polarization mismatch in reflector antenna systems. A feed unit is configured to determine a polarization mismatch between a first polarization associated with a first wave and a second polarization associated with a reflector unit. The feed unit pre-distorts the first wave to achieve a compensated polarization for reducing and/or eliminating a polarization mismatch. The pre-distorted first wave having the compensated polarization is used to illuminate the reflector unit. A re-radiated wave is reflected by the reflector unit. Furthermore, the level of the re-radiated wave is increased as a result of the pre-distortion.

公开(公告)号：US09437923B2

公开(公告)日：2016-09-06

申请号：US13651560

申请日：2012-10-15

申请人： Joshua A. Gordon

发明人： Joshua A. Gordon

IPC分类号： H01Q3/00 ,  H01Q3/26 ,  H01Q15/22 ,  H01Q19/06 ,  H01Q19/195 ,  H01Q1/12 ,  H01Q3/08

CPC分类号： H01Q3/267 ,  H01Q1/125 ,  H01Q1/1257 ,  H01Q3/08 ,  H01Q15/22 ,  H01Q19/062 ,  H01Q19/195

摘要： A system and method for imaging and aligning antennas that includes an overlay imaging aligner composed of two or more antennas in association with a polarization gate, a polarization beam splitter, a non-polarizing beam splitter, a beam dump, one or more imaging lens and a common detector array. The overlay imaging aligner aligns the antennas by overlaying simultaneous digital images associated with the antennas on the common detector array. The antennas can be, for example, mm Wave antennas, waveguides, etc. The detector array generates real-time digital images the antennas. Such an approach of simultaneous imaging leverages the spatial resolution of digital optical imaging to aligning antenna components.

摘要翻译： 一种用于对天线进行成像和对准的系统和方法，所述系统和方法包括与偏振门，偏振分束器，非偏振光束分离器，光束收集器，一个或多个成像透镜相关联的两个或多个天线组成的覆盖成像对准器，以及 一个常见的检测器阵列。 覆盖成像对准器通过覆盖与公共检测器阵列上的天线相关联的同时数字图像来对准天线。 天线可以是例如毫米波天线，波导等。检测器阵列产生天线的实时数字图像。 这种同时成像的方法利用数字光学成像的空间分辨率来对准天线部件。

公开(公告)号：US08674893B2

公开(公告)日：2014-03-18

申请号：US12933285

申请日：2009-02-27

申请人： Timothy John Ecclestone

发明人： Timothy John Ecclestone

IPC分类号： H01Q19/195

CPC分类号： H01Q1/002 ,  H01Q1/1207 ,  H01Q1/288 ,  H01Q19/17 ,  H01Q25/007

摘要： An antenna feed assembly is provided which includes at least two elongate feed chains lying adjacent one another. Each feed chain is adapted to transmit or receive electromagnetic radiation between itself and the antenna along a longitudinal feed axis thereof via a transmit/receive element. The feed chains are held in fixed lateral relationship to one another by first and second mountings spaced apart axially of the feed chains. The transmit/receive elements extend axially from the first mounting towards the antenna and the second mounting is positioned on a side of the first mounting remote from the antenna. The first mounting has a lower coefficient of thermal expansion in the lateral direction than the second mounting whereby translational movement of each transmit/receive element in the lateral direction owing to temperature change of the assembly will be reduced.

摘要翻译： 提供了一种天线馈送组件，其包括彼此相邻的至少两个细长馈电链。 每个馈送链适于通过发射/接收元件沿着其纵向馈送轴线在其与天线之间发射或接收电磁辐射。 通过供给链的轴向隔开的第一和第二安装件，进料链彼此保持固定的侧向关系。 发射/接收元件从第一安装件朝向天线轴向延伸，并且第二安装件位于远离天线的第一安装件的一侧。 第一安装件在横向上的热膨胀系数比第二安装件低，由于组件的温度变化，每个发射/接收元件在横向上的平移运动将会降低。

公开(公告)号：US06972730B2

公开(公告)日：2005-12-06

申请号：US09985293

申请日：2001-11-02

申请人： Masaru Ogawa ,  Kazuo Sato ,  Kunitoshi Nishikawa

发明人： Masaru Ogawa ,  Kazuo Sato ,  Kunitoshi Nishikawa

IPC分类号： H01Q19/195 ,  H01Q3/20 ,  H01Q9/30 ,  H01Q15/14 ,  H01Q15/24 ,  H01Q19/19 ,  H01Q19/20 ,  G08B13/14 ,  H01Q15/02

CPC分类号： H01Q9/30 ,  H01Q19/192 ,  H01Q19/195 ,  H01Q19/20

摘要： A feed probe (1), a semicylindrical sub-reflector (2) forming a primary radiator together with the feed probe (1), and a main reflector (3) arranged such that mirror surfaces of said main reflector (3) and the sub-reflector face across the feed probe (1) are all disposed on a ground plate (a recfector face) (4). The main reflector (3) has a predetermined focal point or focal line on which the feed probe (1) is located, and is mounted on the ground plate (4) at a predetermined installation angle θ. A converter (500) for converting linearly and circularly polarized waves is provided on the mirror surface of the main reflector (3). The converter (500) is composed of a plurality of grooves (510) and ridges (512) formed between the grooves, so that a wave component orthogonal to the grooves is reflected at the bottom of the grooves while a wave component parallel to the grooves is reflected on the ridge surface, thereby causing a phase difference according to the height H of the grooves when a radio wave is reflected on the main reflector to thereby perform linear to circular polarization conversion.

摘要翻译： 进料探针（1），与进料探针（1）一起形成初级辐射器的半圆柱形副反射器（2）和主反射器（3），其布置成使得所述主反射器（3）和子 - 馈送探头（1）两端的反射器面都全部设置在接地板（recfector face）（4）上。 主反射器（3）具有预定的焦点或焦线，进给探针（1）位于该焦点或焦线上，并以预定的安装角度θ安装在接地板（4）上。 用于转换线性和圆偏振波的A转换器（500）设置在主反射器（3）的镜面上。 转换器（500）由形成在槽之间的多个槽（510）和脊（512）组成，使得与沟槽正交的波成分在槽的底部被反射，而波形成分平行于槽 反射在脊面上，从而当无线电波在主反射体上反射时，根据槽的高度H产生相位差，从而进行线偏振转换。

公开(公告)号：US6150991A

公开(公告)日：2000-11-21

申请号：US191069

申请日：1998-11-12

申请人： Garry N. Hulderman

发明人： Garry N. Hulderman

IPC分类号： H01Q1/32 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q19/19 ,  H01Q19/195 ,  H01Q19/00

CPC分类号： H01Q19/19 ,  H01Q1/3233 ,  H01Q19/195 ,  H01Q3/245 ,  H01Q3/2658

摘要： A Cassegrain antenna system includes a flat dielectric plate radome having a thickness of one-half wavelength at a frequency of operation. The plate has an electrically conductive grid disposed on an inside surface thereof to permit perpendicularly polarized energy rays to pass there-through. A parabolic twist reflector is spaced from the radome, and includes a dielectric substrate having a thickness equivalent to one-quarter wavelength at a frequency of operation and having formed on an interior surface thereof an array of conductive strips oriented by 45 degrees relative to the incident ray polarization. A conductive ground layer is formed on an exterior surface of the substrate, wherein radiation reflected by the ground layer and passing through the dielectric substrate is shifted by 180 degrees in phase and is rotated in polarization when combined with energy reflected from the conductive strip array by 90 degrees relative to radiation incident on the twist reflector. The reflected energy from the polarization twist reflector is again reflected, this time by the grid formed on the radome surface, to a focal region. An RF housing with a plurality of RF feed elements is located at the focal region and are respectively spaced by a single beamwidth.

摘要翻译： 卡塞格伦天线系​​统包括在操作频率下具有半波长厚度的平坦电介质天线罩。 板具有设置在其内表面上的导电栅格，以允许垂直偏振的能量射线通过。 抛物线扭转反射器与天线罩间隔开，并且包括具有在工作频率下相当于四分之一波长的厚度的电介质基板，并且在其内表面上形成有相对于入射方向定向45度的导电条阵列 射线偏振。 导电接地层形成在衬底的外表面上，其中由接地层反射并穿过介质衬底的辐射相位偏移了180度，并且当与导电条阵列反射的能量结合时，偏振旋转， 相对于入射在扭转反射体上的辐射90度。 来自偏振扭转反射镜的反射能量再一次由形成在雷达罩表面上的格栅反射到焦点区域。 具有多个RF馈送元件的RF壳体位于焦点区域处，并且分别以单个波束宽度间隔开。

公开(公告)号：US5034750A

公开(公告)日：1991-07-23

申请号：US547548

申请日：1983-10-31

申请人： Apostle G. Cardiasmenos

发明人： Apostle G. Cardiasmenos

IPC分类号： G01S7/02 ,  G01S7/03 ,  G01S7/285 ,  G01S13/28 ,  H01P1/161 ,  H01P1/213 ,  H01Q3/16 ,  H01Q3/20 ,  H01Q3/26 ,  H01Q15/12 ,  H01Q19/195 ,  H01Q21/24 ,  H03D9/06

CPC分类号： H01Q15/12 ,  G01S13/282 ,  G01S7/02 ,  G01S7/024 ,  G01S7/026 ,  G01S7/034 ,  G01S7/285 ,  H01P1/161 ,  H01P1/2131 ,  H01Q19/195 ,  H01Q21/245 ,  H01Q3/16 ,  H01Q3/20 ,  H01Q3/26 ,  H03D9/0633

摘要： A pulse radar for operation at 94 GHz and higher frequencies is shown to include an antenna, a diplexer and first detector that are each optically fed so that radio frequency signals may be, when transmitting, passed through the diplexer to the antenna and, when receiving, from the antenna through the diplexer to the first detector.

摘要翻译： 用于在94GHz和更高频率下操作的脉冲雷达被示为包括天线，双工器和第一检测器，每个光学馈送，使得射频信号可以在发射时通过双工器到天线，并且当接收 ，从天线通过双工器到第一个检测器。

公开(公告)号：US4728961A

公开(公告)日：1988-03-01

申请号：US913127

申请日：1986-09-29

申请人： Patrice Bossuet ,  Francois Gautier

发明人： Patrice Bossuet ,  Francois Gautier

IPC分类号： H01Q15/12 ,  H01Q19/195 ,  H01Q19/00

CPC分类号： H01Q19/195 ,  H01Q15/12

摘要： A spatial filter is provided for electromagnetic waves with circular polarization comprising three parallel conducting networks, the central network being totally reflecting for a rectilinear polarization of given direction and having a non zero reflection coefficient for a rectilinear polarization having a direction perpendicular to the preceding one.

摘要翻译： 为具有包括三个平行导电网络的圆偏振的电磁波提供空间滤波器，该中心网络对于给定方向的直线偏振进行全反射，并且对于具有垂直于前一方向的方向的直线偏振具有非零反射系数。

公开(公告)号：US4625214A

公开(公告)日：1986-11-25

申请号：US661163

申请日：1984-10-15

申请人： Sharad V. Parekh

发明人： Sharad V. Parekh

IPC分类号： H01Q15/14 ,  H01Q15/22 ,  H01Q25/00 ,  H01Q19/195

CPC分类号： H01Q15/22 ,  H01Q25/001

摘要： A dual gridded antenna reflector system and method for constructing the same is disclosed. The reflector system comprises a pair of reflector dishes each having a grid of parallel conductors. One of the reflector dishes is mounted over the other reflector dish by linear support ribs therebetween such that the conductors of the one reflector dish are perpendicular to the conductor of the other reflector dish. The linear support ribs are placed perpendicular to or parallel to the conductors of the overlapped reflector and are placed substantially outside of the high field region across the aperture of the overlapped reflector.

摘要翻译： 公开了一种双网格天线反射器系统及其构造方法。 反射器系统包括一对具有平行导体格栅的反射器盘。 反射器皿之一通过其间的线性支撑肋安装在另一个反射器盘上，使得一个反射器盘的导体垂直于另一个反射器盘的导体。 线性支撑肋垂直于或平行于重叠的反射体的导体放置，并且基本上放置在重叠反射体的孔的高场区域外部。