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1. 发明授权

US06295026B1 Enhanced direct radiating array 有权
标题翻译：增强型直接辐射阵列
公开(公告)号：US06295026B1
公开(公告)日：2001-09-25
申请号：US09443526
申请日：1999-11-19
申请人： Chun-Hong H. Chen , Barry R. Allen , Kenneth T. Yano , Mark Kintis , Steven S. Kuo
发明人： Chun-Hong H. Chen , Barry R. Allen , Kenneth T. Yano , Mark Kintis , Steven S. Kuo
IPC分类号： H01Q322
CPC分类号： H01Q3/24 , H01Q1/288 , H01Q3/26 , H01Q3/40 , H01Q25/00
摘要： An apparatus (800) and method (1000) for forming a shapeable and directable composite beam (305) from a plurality of pixel beams (302). The apparatus (800) includes a front-end unit (810) which communicates element signals through antenna array elements (808). The apparatus (800) also includes a back-end unit (850) which forms the composite beam from a set of pixel beams by converting between a composite signal and a set of corresponding pixel signals. The back-end unit (850) further adjusts the amplitude and phase of the set of pixel signals to form the composite beam. The apparatus (800) further includes an interconnecting beamforming network (820) interposed between the back-end unit (850) and the front-end unit (810) which couples the back-end unit (850) to the front-end unit (810) by converting between the pixel signals of the back-end unit (850) and the element signals of the front-end unit (810). The method (1100) includes determining a desired shape and direction for the composite beam (1110). The method (1100) then selects a set of pixel beams (1120) with which to form the composite beam. The method (1100) converts between the composite signal and a set of pixel signals corresponding to the set of pixel beams (1140). The method forms the composite beam (1150) by adjusting the amplitude and phase of the set of pixel signals.
摘要翻译：一种用于从多个像素光束（302）形成可成形和可定向的复合光束（305）的装置（800）和方法（1000）。装置（800）包括通过天线阵列元件（808）传送元件信号的前端单元（810）。设备（800）还包括后端单元（850），后端单元（850）通过在复合信号和一组对应的像素信号之间进行转换来形成来自一组像素波束的合成波束。后端单元（850）进一步调整该组像素信号的幅度和相位以形成复合波束。该装置（800）还包括插入在后端单元（850）和前端单元（810）之间的互连波束形成网络（820），该后端单元（850）将后端单元（850）耦合到前端单元 810），通过在后端单元（850）的像素信号和前端单元（810）的元件信号之间进行转换。方法（1100）包括确定组合梁（1110）的期望形状和方向。方法（1100）然后选择一组像素束（1120），用以形成复合束。方法（1100）在复合信号和对应于该组像素波束的一组像素信号之间进行转换（1140）。该方法通过调整该组像素信号的幅度和相位来形成复合波束（1150）。

2. 发明授权

US6005515A Multiple scanning beam direct radiating array and method for its use 有权
标题翻译：多扫描光束直接辐射阵列及其使用方法
公开(公告)号：US6005515A
公开(公告)日：1999-12-21
申请号：US289414
申请日：1999-04-09
申请人： Barry R. Allen , Kenneth T. Yano , Chun-Hong H. Chen
发明人： Barry R. Allen , Kenneth T. Yano , Chun-Hong H. Chen
IPC分类号： H01Q3/26 , H01Q3/40 , H01Q3/42 , H01Q21/06 , H01Q25/04 , H01Q3/02 , H01Q3/12
CPC分类号： H01Q21/061 , H01Q3/40 , H01Q3/42
摘要： A phased array antenna system producing multiple beams that can be rapidly and reliably scanned between desired angular beam locations without the need for highly complex hardware. The antenna system includes multiple antenna elements (30) coupled to frequency converters (34) that downconvert received signals to an intermediate frequency. Each frequency converter (34) receives a local oscillator (36) signal that passes through a phase shifting circuit (40). The phase shifting circuits are adjusted only in a calibration mode, to remove any phase errors, but are not used to select beam locations. In a receive mode, the downconverted received signals are input to a matrix network (44), such as a Butler Matrix, which transforms the antenna signals on its input lines (42) to an equivalent set of beam location signals on its outputs (46), of which there is one for each possible angular beam location of the antenna system. A switch network (50) then selects from among this set of beam location signals and associates selected beam location signals with selected beam signals. The switch network (50) has its configuration determined by multiple electronically controllable switches (58), and determines the association of each of multiple communication beams with a selected angular beam location. Thus each communication beam can be conveniently directed or redirected to a desired angular beam location without the need to adjust a large number of phase shifting circuits.
摘要翻译：相控阵天线系统产生多束可以在所需角度波束位置之间快速可靠地扫描的波束，而不需要高度复杂的硬件。天线系统包括耦合到频率转换器（34）的多个天线元件（30），其将接收的信号下变频到中频。每个变频器（34）接收通过相移电路（40）的本地振荡器（36）信号。移相电路仅在校准模式下进行调整，以消除任何相位误差，但不用于选择光束位置。在接收模式中，下变频的接收信号被输入到诸如巴特勒矩阵的矩阵网络（44），其将其输入线路上的天线信号（42）变换成其输出端上的等效的波束位置信号集（46 ），其中天线系统的每个可能的角波束位置都有一个。开关网络（50）然后从这组波束位置信号中进行选择，并将所选择的波束位置信号与所选波束信号相关联。交换网络（50）具有由多个电子可控开关（58）确定的配置，并且确定多个通信波束中的每一个与所选角度波束位置的关联。因此，每个通信波束可以方便地引导或重定向到期望的角度波束位置，而不需要调整大量的相移电路。

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