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1. 发明申请

US20110090100A1 TRANSFORMING SIGNALS USING PASSIVE CIRCUITS 有权
标题翻译：使用被动电路变换信号
公开(公告)号：US20110090100A1
公开(公告)日：2011-04-21
申请号：US12746526
申请日：2008-12-05
申请人： Mahdieh B. Shemirani , Farshid Aryanfar
发明人： Mahdieh B. Shemirani , Farshid Aryanfar
IPC分类号： H03M9/00 , G06F17/14
CPC分类号： H01Q3/40
摘要： Passive signal combiners are employed to transform at least one signal from one domain to another. In some aspects the transformation comprises an NFL an IFFT, a DFT, or an IDFT. In some implementations the passive signal combiners comprise a set of planar waveguides (e.g., which may be referred to as beamformers or Rotman lenses) that have multiple inputs and outputs and are configured to provide orthogonal output signals. In some implementations an electrical signal (e.g., received via an antenna element) is coupled to passive beamformers that transform the electrical signal from one domain to another domain. Here, a transformation of the electrical signal by a given passive beamformer may have a first resolution, and outputs from the passive beamformers may correspond to orthogonal groups. A combiner circuit may be used to combine the outputs from the passive beamformers and produce a combined output having a second resolution and an associated error. In some aspects, this error may be less than a cumulative error associated with the passive beamformers if a single passive beamformer was instead employed to transform the electrical signal at the second resolution. Also, by using at least partially different bandwidths for components in the circuits, a higher effective bandwidth for the transformation may be achieved.
摘要翻译：被动信号组合器用于将至少一个信号从一个域转换到另一个域。在某些方面，转换包括NFL，IFFT，DFT或IDFT。在一些实施方式中，无源信号组合器包括具有多个输入和输出并且被配置为提供正交输出信号的一组平面波导（例如，其可以被称为波束形成器或Rotman透镜）。在一些实现中，电信号（例如，经由天线元件接收）耦合到无源波束形成器，其将电信号从一个域转换到另一个域。这里，给定无源波束形成器的电信号的变换可以具有第一分辨率，并且被动波束形成器的输出可以对应于正交组。可以使用组合器电路来组合来自无源波束形成器的输出，并产生具有第二分辨率和相关误差的组合输出。在某些方面，如果采用单个无源波束形成器来以第二分辨率转换电信号，该误差可能小于与被动波束形成器相关联的累积误差。此外，通过对电路中的组件使用至少部分不同的带宽，可以实现用于转换的较高有效带宽。

2. 发明授权

US08484277B2 Transforming signals using passive circuits 有权
标题翻译：使用无源电路转换信号
公开(公告)号：US08484277B2
公开(公告)日：2013-07-09
申请号：US12746526
申请日：2008-12-05
申请人： Mahdieh B. Shemirani , Farshid Aryanfar
发明人： Mahdieh B. Shemirani , Farshid Aryanfar
IPC分类号： G06F17/14
CPC分类号： H01Q3/40
摘要： Passive signal combiners are employed to transform at least one signal from one domain to another. In some aspects the transformation comprises an FFT, an IFFT, a DFT, or an IDFT. In some implementations the passive signal combiners comprise a set of planar waveguides (e.g., which may be referred to as beamformers or Rotman lenses) that have multiple inputs and outputs and are configured to provide orthogonal output signals. In some implementations an electrical signal (e.g., received via an antenna element) is coupled to passive beamformers that transform the electrical signal from one domain to another domain. Here, a transformation of the electrical signal by a given passive beamformer may have a first resolution, and outputs from the passive beamformers may correspond to orthogonal groups. A combiner circuit may be used to combine the outputs from the passive beamformers and produce a combined output having a second resolution and an associated error. In some aspects, this error may be less than a cumulative error associated with the passive beamformers if a single passive beamformer was instead employed to transform the electrical signal at the second resolution. Also, by using at least partially different bandwidths for components in the circuits, a higher effective bandwidth for the transformation may be achieved.
摘要翻译：被动信号组合器用于将至少一个信号从一个域转换到另一个域。在一些方面，变换包括FFT，IFFT，DFT或IDFT。在一些实施方式中，无源信号组合器包括具有多个输入和输出并且被配置为提供正交输出信号的一组平面波导（例如，其可以被称为波束形成器或Rotman透镜）。在一些实现中，电信号（例如，经由天线元件接收）耦合到无源波束形成器，其将电信号从一个域转换到另一个域。这里，给定无源波束形成器的电信号的变换可以具有第一分辨率，并且被动波束形成器的输出可以对应于正交组。可以使用组合器电路来组合来自无源波束形成器的输出，并产生具有第二分辨率和相关误差的组合输出。在某些方面，如果采用单个无源波束形成器来以第二分辨率转换电信号，该误差可能小于与被动波束形成器相关联的累积误差。此外，通过对电路中的组件使用至少部分不同的带宽，可以实现用于转换的较高有效带宽。

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