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公开(公告)号：US08743016B2
公开(公告)日：2014-06-03
申请号：US12883862
申请日：2010-09-16
CPC分类号： H01Q21/22 , H01Q13/206 , H01Q21/061 , H01Q21/30
摘要： An antenna with improved radiation efficiency is provided. The antenna includes an antenna array proximately coupled to a feed line. The antenna array includes a plurality of resonating lines. Each resonating line includes a plurality of axially aligned resonators. The resonators have a resonating surface. The resonating surfaces of the resonators at the ends of the resonating lines are larger than resonating surfaces of the resonators in the middle of the resonating lines. Power is supplied to each resonating ling through a feed line. Electrical field is uniformly distributed along the antenna array so as to improve the radiation efficiency of the antenna.
摘要翻译： 提供了一种提高辐射效率的天线。 天线包括近似耦合到馈线的天线阵列。 天线阵列包括多个谐振线。 每个谐振线包括多个轴向对准的谐振器。 谐振器具有谐振表面。 在谐振线的端部处的谐振器的谐振表面大于谐振线中间的谐振器的谐振表面。 通过馈线将功率提供给每个谐振线圈。 电场沿着天线阵列均匀分布，以提高天线的辐射效率。
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公开(公告)号：US20120086601A1
公开(公告)日：2012-04-12
申请号：US12900565
申请日：2010-10-08
IPC分类号： H01Q3/00
摘要： A microwave antenna system having a plurality of antenna elements arranged in an array having two spaced ends. A first phase shifter is electrically connected to a first group of at least two adjacent antenna elements at one end of the array to control the signal phase in that first group. Likewise, a second phase shifter is electrically connected to a second group of at least two adjacent array elements at the other end of the array to control the signal phase in the second group. Individual phase shifters are electrically connected to individual middle antenna elements for at least several of the middle antenna elements between the first and second groups.
摘要翻译： 一种微波天线系统，其具有以具有两个间隔端的阵列排列的多个天线元件。 第一移相器在阵列的一端电连接到至少两个相邻天线元件的第一组，以控制该第一组中的信号相位。 类似地，第二移相器在阵列的另一端电连接到阵列的另一端的至少两个相邻阵列元件的第二组，以控制第二组中的信号相位。 单个移相器电连接到第一和第二组之间的至少几个中间天线元件的单个中间天线元件。
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公开(公告)号：US09116227B2
公开(公告)日：2015-08-25
申请号：US13401977
申请日：2012-02-22
CPC分类号： G01S3/74 , G01S7/52003 , G01S7/52047 , G01S13/931 , G01S2013/0254 , G01S2013/9342 , G01S2013/9346 , H01Q3/26
摘要： A radar apparatus includes a phased array receiver, with a steerable receive beam. The receiver elements are grouped into subarrays, which each provide a subarray signal to a mixer. The mixer signals are then used by a DBF algorithm to determine narrow virtual beams within the receive beam. The receive beam is used to obtain radar data from sectors of the field of view, and the sectors may be approximately as wide as the receive beam. The order in which sectors are examined may be determined by the sector importance, related to the presence, nature, and/or behavior of previously tracked targets within each sector.
摘要翻译： 雷达装置包括具有可转向接收波束的相控阵接收器。 接收器元件被分组成子阵列，每个子阵列向混频器提供子阵列信号。 然后混合器信号由DBF算法用于确定接收波束内的窄虚拟波束。 接收波束用于从视场的扇区获取雷达数据，并且扇区可以大致与接收波束一样宽。 检查部门的顺序可以由扇区的重要性来确定，这与有关每个扇区中先前跟踪的目标的存在，性质和/或行为有关。
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公开(公告)号：US08031116B1
公开(公告)日：2011-10-04
申请号：US12910302
申请日：2010-10-22
IPC分类号： H01Q3/26
CPC分类号： H01Q1/3233 , H01Q3/36
摘要： A microwave antenna system having a plurality of antenna elements arranged in an array having two spaced ends. A phase shifter is electrically connected to a first group of at least two adjacent antenna elements at one end of the array and is also electrically connected to a second group of at least two adjacent antenna elements adjacent the other end of the array. Individual phase shifters are connected to individual middle antenna elements for at least several of the antenna elements between the first and second groups of antenna elements. A switch selectively electrically connects a phase delay line in series between the phase shifter and the second group of antenna array elements to effectively double the number of good beam positions of the antenna array.
摘要翻译： 一种微波天线系统，其具有以具有两个间隔端的阵列排列的多个天线元件。 移相器在阵列的一端电连接到至少两个相邻天线元件的第一组，并且还与邻近阵列的另一端的至少两个相邻的天线元件的第二组电连接。 单个移相器连接到单个中间天线元件，用于在第一和第二组天线元件之间的至少几个天线元件。 开关选择性地将相位延迟线串联连接在移相器和第二组天线阵列元件之间以有效地使天线阵列的良好波束位置的数量加倍。
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公开(公告)号：US09413196B2
公开(公告)日：2016-08-09
申请号：US13442238
申请日：2012-04-09
CPC分类号： H02J50/10 , H01F27/2804 , H01F38/14 , H01F2027/2809 , H02J17/00 , H02J50/40 , H02J50/70
摘要： A revised coil loop structure is combined with metamaterials designed to contain and redirect the electromagnetic field to produce an improved inductive coupling system. The efficiency of the inductive power transfer system is increased relative to existing technologies by overcoming the negative effects of distance and misalignment. The transmitting and receiving coils are both constructed by connecting a series of printed circuit boards (PCBs). The individual PCBs are then stacked on top of one another and connected to produce the transmitting and receiving coils. The transmitting and receiving coils further feature a coil shape designed to allow the coils to be actively and variably tuned to one another. The efficiency of power transfer in the system is additionally increased through the use of metamaterials. The metamaterial is used as a backing for the coils and reduces the amount of magnetic flux found on the back of the coils.
摘要翻译： 经修改的线圈回路结构与被设计为容纳和重定向电磁场的超材料组合以产生改进的电感耦合系统。 通过克服距离和未对准的负面影响，感应电力传输系统的效率相对于现有技术而增加。 发射和接收线圈均通过连接一系列印刷电路板（PCB）构成。 然后将各个PCB堆叠在彼此的顶部并连接以产生发送和接收线圈。 发射和接收线圈还具有线圈形状，其设计成允许线圈彼此主动地和可变地调谐。 通过使用超材料来增加系统中功率传递的效率。 超材料用作线圈的背衬，并减少在线圈背面发现的磁通量。
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公开(公告)号：US20140022116A1
公开(公告)日：2014-01-23
申请号：US13555814
申请日：2012-07-23
CPC分类号： G01S13/931 , G01S3/74 , G01S2013/0254 , G01S2013/9321 , H01Q1/3233 , H01Q3/30
摘要： A radar apparatus includes a receiver having a plurality of receiver channels, each including an antenna element, a phase shifter, and a switch. The antenna element provides a signal that passes through a phase shifter to a switch. The signal may then be passed to a summing element if the switch is closed. The summing element receives signals from the receive channels, and provides a sum signal to a mixer. In phased array mode, the switches are closed and antenna controller adjusts the phase angles of the phase shifters. In DBF mode, the phase shifters are maintained at a set value, and switches are operated sequentially to provide time-multiplexed signals from the receive channels to the summing element.
摘要翻译： 雷达装置包括具有多个接收机通道的接收机，每个接收机通道包括天线元件，移相器和开关。 天线元件提供通过移相器到开关的信号。 如果开关闭合，则信号可以被传递到求和元件。 求和元件从接收通道接收信号，并向混频器提供和信号。 在相控阵模式下，开关闭合，天线控制器调节移相器的相位角。 在DBF模式中，移相器保持在一个设定值，并且顺序地操作开关以提供从接收通道到求和元件的时间复用信号。
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公开(公告)号：US20140022109A1
公开(公告)日：2014-01-23
申请号：US13555864
申请日：2012-07-23
IPC分类号： G01S13/93
CPC分类号： G01S13/931 , G01S7/2813 , G01S2013/0254 , G01S2013/9321 , G01S2013/9357 , H01Q1/3233
摘要： Examples of the invention include radar apparatus having at least two phased array transmitters, each having a different elevation corresponding to heights of detected targets relative to the road surface. A low elevation transmit beam is directed at the road surface, and used to identify metal objects in the road surface, which often cause false detections in conventional devices but may not be actual collision hazards. A higher elevation transmitted beam is used to detect actual collision hazards to the vehicle.
摘要翻译： 本发明的实例包括具有至少两个相控阵列发射器的雷达装置，每个发射器具有与检测到的目标相对于路面的高度相对应的不同高度。 低仰角的发射光束指向路面，用于识别路面中的金属物体，这常常会导致传统装置中的错误检测，但可能不是实际的碰撞危险。 较高的高程透射光束用于检测对车辆的实际碰撞危害。
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公开(公告)号：US20130088393A1
公开(公告)日：2013-04-11
申请号：US13267546
申请日：2011-10-06
IPC分类号： H01Q3/00
CPC分类号： G01S7/354 , G01S13/34 , G01S13/931 , G01S2013/0245
摘要： Examples of the present invention include methods and apparatus for phased array automotive radar which allow reductions in erroneous detections such as sidelobe clutter and ghost images. An example radar includes a steerable transmit antenna and a steerable receive antenna. Transmit and receive beams may be steered using an electronic control circuit so the main lobe of the transmit beam remains generally aligned with the main lobe of the receive beam, and the side lobe of the receive beam remains generally aligned with a null in the transmit beam.
摘要翻译： 本发明的实例包括用于相控阵汽车雷达的方法和装置，其允许减少错误检测，例如旁瓣杂波和重影图像。 示例雷达包括可导向的发射天线和可引导的接收天线。 发射和接收波束可以使用电子控制电路进行控制，使得发射波束的主波瓣保持与接收波束的主波瓣大致对准，并且接收波束的旁瓣保持大体上与发射波束中的零点对准 。
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公开(公告)号：US20130234880A1
公开(公告)日：2013-09-12
申请号：US13414299
申请日：2012-03-07
CPC分类号： G01S13/345 , G01S13/536 , G01S13/584 , G01S13/931 , G01S2013/9375
摘要： An example radar apparatus has a transmission frequency modulated by a chirp waveform having three chirp segments, including increasing, decreasing, and a constant frequency segments. The chirp waveform may extend over the full revisit time of the radar beam. The frequency difference between the transmitted and echo signals are determined at least once per chirp segment. Example apparatus include a Doppler radar for vehicle use.
摘要翻译： 示例性雷达装置具有由具有三个啁啾段的啁啾波形调制的发射频率，包括增加，减少和恒定频率段。 啁啾波形可以在雷达波束的全部重访时间延伸。 每个啁啾段至少确定一次发送和回波信号之间的频率差。 示例性装置包括用于车辆使用的多普勒雷达。
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公开(公告)号：US20130214961A1
公开(公告)日：2013-08-22
申请号：US13401977
申请日：2012-02-22
CPC分类号： G01S3/74 , G01S7/52003 , G01S7/52047 , G01S13/931 , G01S2013/0254 , G01S2013/9342 , G01S2013/9346 , H01Q3/26
摘要： A radar apparatus includes a phased array receiver, with a steerable receive beam. The receiver elements are grouped into subarrays, which each provide a subarray signal to a mixer. The mixer signals are then used by a DBF algorithm to determine narrow virtual beams within the receive beam. The receive beam is used to obtain radar data from sectors of the field of view, and the sectors may be approximately as wide as the receive beam. The order in which sectors are examined may be determined by the sector importance, related to the presence, nature, and/or behavior of previously tracked targets within each sector.
摘要翻译： 雷达装置包括具有可转向接收波束的相控阵接收器。 接收器元件被分组成子阵列，每个子阵列向混频器提供子阵列信号。 然后混合器信号由DBF算法用于确定接收波束内的窄虚拟波束。 接收波束用于从视场的扇区获取雷达数据，并且扇区可以大致与接收波束一样宽。 检查部门的顺序可以由扇区的重要性来确定，这与有关每个扇区中先前跟踪的目标的存在，性质和/或行为有关。
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