Method and apparatus for beam forming

    公开(公告)号:AU6541601A

    公开(公告)日:2001-12-24

    申请号:AU6541601

    申请日:2001-06-04

    Applicant: HRL LAB LLC

    Abstract: An ultra-wideband beamformer is provided by using conventional phase shifting techniques to impress data and antenna scan information onto a narrow band signal. A non-linear element then converts the narrow sine wave into ultra-wideband pulses. Phase shift key modulation impresses data information onto the sine wave in the form of a phase shift. The data-bearing sine wave is split into multiple transmission lines where each provides an additional antenna scanning phase shift. The non-linear element converts each phase of the sine wave into short pulses which are sent to radiating elements for transmission. In the far-field of the beam, the scan delays between the radiating elements are canceled out, such that the fields from each radiating element are summed and the pulse position modulated data recovered.

    METHODS AND APPARATUS FOR CONSTRUCTING PHOTONIC BEAMFORMING NETWORKS
    2.
    发明申请
    METHODS AND APPARATUS FOR CONSTRUCTING PHOTONIC BEAMFORMING NETWORKS 审中-公开
    用于构建光子波束形成网络的方法和设备

    公开(公告)号:WO0197327B1

    公开(公告)日:2002-06-13

    申请号:PCT/US0119247

    申请日:2001-06-13

    CPC classification number: H04J14/02 H01Q3/2676

    Abstract: Methods and apparatus for constructing phased array antenna beamforming networks are provided, that allow to scan multiple beams and select appropriate sets of delaylines simultaneously. The beamforming networks disclosed herein generate less losses than conventional ones and in some caes, do not require active switching, making them completely passive. Three main methods are comprised in the invention: (1) laser wavelength hierarchies, (2) arrangements of Wavelengths Division Multiplexing (WDM) components, (3) re-use of laser wavelengths. Multiple laser wavelengths are arranged in groups and subgroups (wavelength heirarchies) in the wavelength domain. By switching between these wavelength groupies, the arrangements of WDM components disclosed herein enable the beamforming network to direct the beam signals to the proper time delay lines, and to differentiate multiple beams. The method of laser wavelength re-use permits to significantly reduce the number of wavelength utilized, and thus to limit them to the standard wavelengths specified by the ITU.

    Abstract translation: 提供了用于构建相控阵天线波束形成网络的方法和设备,其允许扫描多个波束并同时选择合适的组合。 本文公开的波束成形网络产生比常规波束成形网络更少的损失,并且在某些情况下,不需要有源切换,使其完全被动。 本发明包括三种主要方法:(1)激光波长分级,(2)波分复用(WDM)分量的布置,(3)激光波长的再利用。 多个激光波长在波长域中按组和子组(波长方向)排列。 通过在这些波长组之间进行切换,本文公开的WDM组件的布置使得波束成形网络能够将波束信号引导至适当的时间延迟线并且区分多个波束。 激光波长重用的方法允许显着减少所使用的波长的数量,并且因此将其限制为由ITU规定的标准波长。

    Wavelength division multiplexing methods and apparatus for constructing photonicbeamforming networks

    公开(公告)号:AU6985201A

    公开(公告)日:2001-12-24

    申请号:AU6985201

    申请日:2001-06-13

    Applicant: HRL LAB LLC

    Abstract: Methods and apparatus for constructing phased array antenna beamforming networks are provided, that allow to scan multiple beams and select appropriate sets of delay lines simultaneously. The beamforming networks disclosed herein generate less losses than conventional ones and in some cases, do not require active switching, making them completely passive. Three main methods are comprised in the invention: (1) laser wavelength hierarchies, (2) arrangements of Wavelengths Division Multiplexing (WDM) components, (3) re-use of laser wavelengths. Multiple laser wavelengths are arranged in groups and subgroups (wavelength hierarchies) in the wavelength domain. By switching between these wavelength groupings, the arrangements of WDM components disclosed herein enable the beamforming network to direct the beam signals to the proper time delay lines, and to differentiate multiple beams. The method of laser wavelength re-use permits to significantly reduce the number of wavelengths utilized, and thus to limit them to the standard wavelengths specified by the ITU.

    METHODS AND APPARATUS FOR CONSTRUCTING PHOTONIC BEAMFORMING NETWORKS
    4.
    发明申请
    METHODS AND APPARATUS FOR CONSTRUCTING PHOTONIC BEAMFORMING NETWORKS 审中-公开
    用于构建光子波束网络的方法和装置

    公开(公告)号:WO0197327A3

    公开(公告)日:2002-05-16

    申请号:PCT/US0119247

    申请日:2001-06-13

    CPC classification number: H04J14/02 H01Q3/2676

    Abstract: Methods and apparatus for constructing phased array antenna beamforming networks are provided, that allow to scan multiple beams and select appropriate sets of delaylines simultaneously. The beamforming networks disclosed herein generate less losses than conventional ones and in some caes, do not require active switching, making them completely passive. Three main methods are comprised in the invention: (1) laser wavelength hierarchies, (2) arrangements of Wavelengths Division Multiplexing (WDM) components, (3) re-use of laser wavelengths. Multiple laser wavelengths are arranged in groups and subgroups (wavelength heirarchies) in the wavelength domain. By switching between these wavelength groupies, the arrangements of WDM components disclosed herein enable the beamforming network to direct the beam signals to the proper time delay lines, and to differentiate multiple beams. The method of laser wavelength re-use permits to significantly reduce the number of wavelength utilized, and thus to limit them to the standard wavelengths specified by the ITU.

    Abstract translation: 提供了用于构造相控阵天线波束形成网络的方法和装置,其允许扫描多个波束并同时选择合适的延迟线组。 本文公开的波束成形网络比常规波束形成网络产生更少的损耗,并且在某些方面,不需要主动切换,使得它们完全被动。 本发明包括三个主要方法:(1)激光波长层次,(2)波分复用(WDM)分量的布置,(3)重复使用激光波长。 多个激光波长在波长范围内以组和子组(波长平行度)排列。 通过在这些波群之间进行切换,本文公开的WDM组件的布置使得波束成形网络能够将波束信号引导到适当的时间延迟线并区分多个波束。 激光波长重新使用的方法允许显着减少使用的波长数量,从而将其限制在由ITU规定的标准波长。

    METHOD AND APPARATUS FOR BEAM FORMING
    5.
    发明申请
    METHOD AND APPARATUS FOR BEAM FORMING 审中-公开
    光束形成的方法和装置

    公开(公告)号:WO0197331A2

    公开(公告)日:2001-12-20

    申请号:PCT/US0140833

    申请日:2001-06-04

    CPC classification number: H01Q21/0006 H01Q3/36

    Abstract: An ultra-wideband beamformer is provided by using conventional phase shifting techniques to impress data and antenna scan information onto a narrow band signal. A non-linear element then converts the narrow sine wave into ultra-wideband pulses. Phase shift key modulation impresses data information onto the sine wave in the form of a phase shift. The additional antenna scanning phase shift. The non-linear element converts each phase of the sine wave into short pulses which are sent to radiating elements for transmission. In the far-field of the beam, the scan delays between the radiating elements are canceled out, such that the fields from each radiating element are summed and the pulse position modulated data recovered.

    Abstract translation: 通过使用传统的相移技术将数据和天线扫描信息压印到窄带信号上来提供超宽带波束形成器。 然后,非线性元件将窄正弦波转换成超宽带脉冲。 相移键调制将数据信息以相移的形式印在正弦波上。 附加天线扫描相移。 非线性元件将正弦波的每个相位转换成短脉冲,发送到辐射元件进行传输。 在光束的远场中,消除辐射元件之间的扫描延迟,使得来自每个辐射元件的场相加并且恢复脉冲位置调制数据。

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