公开(公告)号：US07385552B2

公开(公告)日：2008-06-10

申请号：US10518758

申请日：2003-07-11

申请人： John William Archer ,  Oya Sevimli ,  Geoffrey James

发明人： John William Archer ,  Oya Sevimli ,  Geoffrey James

IPC分类号： H01Q3/20 ,  G01S13/89

CPC分类号： G01S13/89 ,  G01S13/887 ,  H01Q3/08 ,  H01Q3/18 ,  H01Q15/248 ,  H01Q19/138 ,  H01Q19/195

摘要： A method and apparatus are disclosed for forming an image from millimeter waves. A field of view scanned using two geometrically orthogonal, intersecting copolarized fan beams (110, 120) to receive millimeter wave radiation. The received millimeter wave radiation from said fan beams are then cross-correlated (250, 650). Also, a method and antenna (400, 610) for receiving millimeter wave radiation are disclosed. The antenna includes first and second fan beam antennas (410, 420) for receiving millimeter wave radiation and a filter (430, 440) for rotating polarization of incident millimeter wave radiation through 90 degrees received by the second fan beam antenna (410). The respective first and second beams (110, 120) intersect and are co-polarized and geometrically orthogonal to each other. Still further, a millimeter wave imaging system (600) and method are also disclosed, which utilise an antenna (610) for receiving millimeter wave radiation, process the received millimeter wave radiation from the antenna (610), and build up the image (682) using a filtered, cross-correlated signal.

摘要翻译： 公开了一种从毫米波形成图像的方法和装置。 使用两个几何正交的相交的共极化扇形光束（110,120）扫描的视场以接收毫米波辐射。 接收到的所述扇形波束的毫米波辐射然后是交叉相关的（250,650）。 此外，公开了一种用于接收毫米波辐射的方法和天线（400,610）。 天线包括用于接收毫米波辐射的第一和第二扇形波束天线（410,420）和用于使入射的毫米波辐射的极化旋转由第二扇形波束天线（410）接收的90度的滤波器（430,440）。 相应的第一和第二光束（110,120）相交并且彼此共同极化并且几何正交。 此外，还公开了一种利用天线（610）接收毫米波辐射的毫米波成像系统（600）和方法，处理来自天线（610）的接收毫米波辐射，并建立图像（682 ）使用滤波的交叉相关信号。

公开(公告)号：US20060103489A1

公开(公告)日：2006-05-18

申请号：US10524240

申请日：2002-08-16

申请人： Martin Johansson ,  Bengt Svensson ,  Emil Wikgren

发明人： Martin Johansson ,  Bengt Svensson ,  Emil Wikgren

IPC分类号： H01P1/18 ,  H01P1/16

CPC分类号： H01Q19/138 ,  H01P1/16 ,  H01P3/12 ,  H01P3/18 ,  H01Q13/20 ,  H01Q13/26 ,  H01Q15/248 ,  H01Q21/0031

摘要： A method and a system for transforming between one or more point type sources and a line source in a transmission line structure. A transmission line path controller is inserted between a first parallel-plate waveguide section and a second parallel-plate waveguide section. The transmission line path controller comprises a curved side to which one end of each waveguide is coupled. The transmission line path controller further comprises a waveguide slot, one side of which is a part of the curved side, coupling the waveguide ends that are coupled to the transmission line path controller. The ends of the waveguides that are not coupled to the transmission line path controller forms the point type source and the line source, respectively.

摘要翻译： 一种在传输线结构中在一个或多个点型源和线源之间变换的方法和系统。 传输线路径控制器插入在第一平行板波导部分和第二平行板波导部分之间。 传输线路径控制器包括弯曲侧，每个波导的一端连接到该弯曲侧。 传输线路径控制器还包括波导槽，其一侧是弯曲侧的一部分，耦合耦合到传输线路径控制器的波导端。 未耦合到传输线路径控制器的波导的端部分别形成点型源和线源。

公开(公告)号：US06930647B2

公开(公告)日：2005-08-16

申请号：US10147302

申请日：2002-05-17

申请人： Iichi Wako ,  Hisamatsu Nakano ,  Yusuke Yamamoto

发明人： Iichi Wako ,  Hisamatsu Nakano ,  Yusuke Yamamoto

IPC分类号： H01Q13/06 ,  H01Q19/13 ,  H01Q13/00 ,  H01Q13/02

CPC分类号： H01Q13/06 ,  H01Q19/138

摘要： At least one of the following requirements is satisfied. A position of a curvature center of an arcuate portion in at least one of waveguide plates is selected between a connecting member and a feeder, in accordance with a desired horizontal beam radiation characteristic. A curvature radius of the arcuate portion in at least one of the waveguide plates is selected in accordance with a desired vertical beam radiation characteristic. A slanted angle of a peripheral face of the arcuate portion, which connects a top face and a bottom face of each waveguide plate, in at least one of the waveguide plates is selected in accordance with a desired vertical beam radiation characteristic.

摘要翻译： 满足以下要求中的至少一项。 根据期望的水平射束辐射特性，在连接构件和进料器之间选择在至少一个波导板中的弧形部分的曲率中心的位置。 根据期望的垂直光束辐射特性选择至少一个波导板中的弧形部分的曲率半径。 根据期望的垂直光束辐射特性选择在至少一个波导板中连接每个波导板的顶面和底面的弧形部分的外周面的倾斜角。

公开(公告)号：US4876554A

公开(公告)日：1989-10-24

申请号：US145790

申请日：1988-01-19

申请人： Duane G. Tubbs

发明人： Duane G. Tubbs

IPC分类号： H01Q19/13

CPC分类号： H01Q19/138

摘要： A directive communications antenna comprising upper and lower plates, each having a leading edge, and a parabolic reflecting cylinder disposed between and axially intersecting the plates so as to form a cavity having a focus line. The cavity is open adjacent the plate leading edges. Upper and lower lip plates respectively extend along the leading edges of the upper and lower plates with both lip plates projecting upwardly therefrom. A feed assembly comprised of a feed probe and a sub-reflector is positioned within the cavity.

摘要翻译： 一种指向性通信天线，包括每个具有前缘的上板和下板，以及抛物面反射筒，其设置在所述板之间并且轴向地与所述板相交，以形成具有焦点线的空腔。 空腔在板的前缘附近打开。 上唇和下唇板分别沿着上板和下板的前缘延伸，两个唇板从其向上突出。 由进料探针和副反射器组成的进料组件位于腔内。

公开(公告)号：US4353073A

公开(公告)日：1982-10-05

申请号：US201280

申请日：1980-10-27

申请人： Anton Brunner ,  Erwin Kress

发明人： Anton Brunner ,  Erwin Kress

IPC分类号： H01Q19/13 ,  H01Q25/00 ,  H01Q3/24 ,  H01Q19/15

CPC分类号： H01Q25/00 ,  H01Q19/138

摘要： An antenna arrangement for a radar surveillance method for target locating having altitude acquisition provides that, for the purpose of level comparison, a plurality of overlapping lobes lying above one another are generated by a reflector rotating around a vertical axis together with a primary radiator row arranged essentially vertically. In employing a paraboloid of revolution as the reflector, a vertical primary radiator row is arranged around its focal point. Given more greatly deflected beams whose exciters are at a greater distance from the focal point, the gain in such an antenna decreases as the side lobes increase, limiting the elevation angle range. A single parabolic cylinder reflector generating a beam and focusing only in the horizontal plane is employed as the reflector, the individual radiators of a primary radiator row being arranged along its focal line. The horizontal extent of the primary radiators is so small and the vertical extent is so great that the desired bundling of the individual lobes lying one above another arises. The antenna arrangement according to the invention can be advantageously employed in an X-band radar having altitude acquisition.

摘要翻译： 一种用于具有高度采集的目标定位的雷达监视方法的天线装置，其特征在于，为了进行电平比较，通过围绕垂直轴线旋转的反射器与排列的主辐射器排一起产生多个彼此重叠的重叠波瓣 基本垂直。 在采用旋转抛物面作为反射器时，在其焦点周围布置有垂直主辐射器排。 给定更多的偏转光束，其激发器距离焦点更大的距离，这样的天线中的增益随着旁瓣增加而减小，限制了仰角范围。 采用仅在水平面中产生光束和聚焦的单个抛物面圆柱反射器作为反射器，主辐射器排的各个散热器沿其焦线布置。 主辐射器的水平范围如此之小，垂直范围如此之大，以至于出现位于另一个之上的单个叶片的期望捆扎。 根据本发明的天线装置可以有利地用于具有高度采集的X波段雷达。

公开(公告)号：US4345257A

公开(公告)日：1982-08-17

申请号：US151737

申请日：1980-05-20

申请人： Anton Brunner

发明人： Anton Brunner

IPC分类号： H01Q5/45 ,  H01Q19/13 ,  H01Q25/02 ,  H01Q13/00

CPC分类号： H01Q19/138 ,  H01Q25/02 ,  H01Q5/45

摘要： A primary radar antenna has a secondary radar antenna or an IFF antenna integrated therewith. Excellent properties with respect to compactness, radiation and frequency dependency are achieved by providing a bilevel pillbox antenna having radiation deflection on a cylindrical parabolic reflector from one interplate space to another. The lower interplate space has, in proximity of the primary radar signal radiator, which is arranged with its radiation center in the focal line of the parabolic reflector, an additional feed for in-coupling of the IFF signal. The antenna is particularly suited as a combined primary and IFF radar antenna for smaller vehicles.

摘要翻译： 主雷达天线具有与其集成的二次雷达天线或IFF天线。 通过在圆柱形抛物面反射器上具有从一个板间空间到另一个间隔板的辐射偏转的双层弹药垫天线来实现关于致密度，辐射和频率依赖性的优异性能。 下层板间隙在主雷达信号辐射器附近被布置成其辐射中心位于抛物面反射器的焦线中，附加馈送用于IFF信号的耦合。 该天线特别适用于较小型车辆的主要和IFF组合雷达天线。

公开(公告)号：US2721940A

公开(公告)日：1955-10-25

申请号：US63888746

申请日：1946-01-03

申请人： DUNBAR ALLEN S

发明人： DUNBAR ALLEN S

IPC分类号： H01Q15/02 ,  H01Q19/13

CPC分类号： H01Q15/02 ,  H01Q19/138

公开(公告)号：US20240014568A1

公开(公告)日：2024-01-11

申请号：US18348300

申请日：2023-07-06

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： Nacer E. CHAHAT ,  Gaurangi GUPTA ,  John L. WOLFF ,  Adrian J. TANG ,  Goutam CHATTOPADHYAY

IPC分类号： H01Q15/00 ,  H01Q19/13

CPC分类号： H01Q15/0086 ,  H01Q19/132 ,  H01Q19/138

摘要： A metal-only flat metasurface antenna is described. The antenna includes a pillbox beamformer combined with a metasurface structure provided by an array of non-resonant subwavelength unit elements having opening sizes that are strictly smaller than half of the guided-mode wavelength. The pillbox beamformer includes bottom and top parallel plate waveguides (PWPs) forming respective bottom and top cavities for propagation of the guided-mode. Bottom, middle and top metal plates form the two PWPs. Arranged at one end of the bottom and top PWPs is a respective parabolic structure. An all-metal horn structure is centrally arranged at a second end of the bottom PWP opposite the parabolic structure. According to one aspect, the horn structure includes a single feed port arranged at a focal point of the parabolic structure. According to another aspect, the horn structure includes two feed ports arranged at an offset of the focal point.

公开(公告)号：US20150123862A1

公开(公告)日：2015-05-07

申请号：US14073990

申请日：2013-11-07

申请人： ThinKom Solutions, Inc.

发明人： William MILROY ,  Alan C. LEMONS

IPC分类号： H01Q19/13 ,  H01Q21/00

CPC分类号： H01Q19/138 ,  H01P1/025 ,  H01P1/027 ,  H01P5/024 ,  H01Q21/0006

摘要： A waveguide to parallel-plate transition is provided which includes a waveguide, an E-plane waveguide bend, an H-plane waveguide bend and a parallel-plate transmission line arranged in sequence. The E-plane waveguide bend is configured to bend a direction of a radio frequency (RF) field between the waveguide and the H-plane waveguide bend by approximately 90 degrees in an E-plane. The H-plane waveguide bend is configured to bend a direction the RF field between the E-plane waveguide bend and the parallel-plate transmission line by approximately 90 degrees in an H-plane, and the parallel-plate transmission line includes a slot through which the RF field can flow between the H-plane waveguide bend and the parallel-plate transmission line.

摘要翻译： 提供了一种平行平板转换的波导，包括波导，E平面波导弯曲，H平面波导弯曲和平行板传输线。 E平面波导弯曲被配置为在E平面中将波导和H平面波导弯曲之间的射频（RF）场的方向弯曲大约90度。 H平面波导弯曲部被配置为使H平面中的E平面波导弯曲部和平行板传输线之间的RF场的方向弯曲大约90度，并且平行板传输线包括槽 RF场可以在H平面波导弯管和平行板传输线之间流动。

公开(公告)号：US08284102B2

公开(公告)日：2012-10-09

申请号：US12448951

申请日：2008-01-15

申请人： David Hayes ,  Richard Brooke Keeton

发明人： David Hayes ,  Richard Brooke Keeton

IPC分类号： H01Q3/46 ,  H01Q19/12 ,  H01Q19/06

CPC分类号： H01Q1/38 ,  H01Q3/46 ,  H01Q19/138 ,  H01Q25/00 ,  H01Q25/007

摘要： A displaced feed antenna which has a spaced conducting plate construction that incorporates electronically selectable feed points with associated antenna beam positions, and which comprises (i) a set of one or more beamforming configurations composed of layered, interlinking spaced conducting plates and conducting boundaries that are separated by cavities containing dielectric material or free space; (ii) a set of one or more internal focusing devices for each beamforming configuration to route radio frequency energy to or from the displaced feed points in receive and transmit modes respectively; (iii) a linear or curved array of displaced feeds for each beamforming configuration for coupling radio frequency energy into, or from, the cavity between the plates; (iv) a selection device to allow definable overlapping regions of the focussing devices to be illuminated for each beamforming configuration; and (v) array elements for each beamforming configuration between spaced conducting plates to free space, allowing either single polarizations or dual polarization operation.

摘要翻译： 具有间隔的导电板结构的移动的馈电天线，其结合具有相关联的天线波束位置的电子可选择的馈电点，并且包括（i）一组一个或多个波束形成构造，其由分层的互连隔开的导电板和导电边界组成， 由包含电介质材料或自由空间的空腔分开; （ii）一组一个或多个内部聚焦装置，用于每个波束形成配置以分别在接收和发射模式中将射频能量路由到或从所述位移进给点传送; （iii）用于每个波束形成配置的用于将射频能量耦合到所述板之间或从所述板之间的空腔的位移进给的线性或弯曲阵列; （iv）选择装置，以允许为每个波束形成配置照亮聚焦装置的可定义的重叠区域; 和（v）用于在间隔的导电板之间的每个波束形成配置的阵列元件以释放空间，允许单极化或双极化操作。