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1.发明申请RECONFIGURABLE ANTENNAS AND CONFIGURATION SELECTION METHODS FOR AD-HOC NETWORKS 有权可重构天线和配置选择方法用于AD-HOC网络公开(公告)号：US20130208608A1
公开(公告)日：2013-08-15
申请号：US13634381
申请日：2011-03-18
IPC分类号： H04W84/18
CPC分类号： H01Q21/29 , H01Q1/007 , H01Q3/24 , H01Q5/342 , H01Q9/0407 , H01Q9/0435 , H01Q9/145 , H01Q9/285 , H01Q13/203 , H01Q21/062 , H01Q21/08 , H04B7/04 , H04W84/18 , H04W88/06
摘要： Reconfigurable antennas in an ad-hoc network are provided where all nodes employ MIMO/SIMO/MISO communication techniques. Three types of reconfigurable antennas: Reconfigurable Printed Dipole Array (RPDA), Reconfigurable Circular Patch Antenna (RCPA) and Two-Port Reconfigurable CRLH Leaky Wave Antennas are used. The RPDA, RCPA and the CRLH Leaky Wave antennas have a different number of configurations as well as different degrees of pattern diversity between possible configurations. To effectively use these antennas in a network, the performance of centralized and decentralized antenna configuration selection schemes are quantified for reconfiguration at one or both link ends. The sum capacity of the network is used as a metric to quantify the performance of these antennas in measured and simulated network channels.
摘要翻译： 在所有节点采用MIMO / SIMO / MISO通信技术的情况下，提供了自组织网络中的可重新配置的天线。 三种类型的可重构天线：可重构可编配偶极阵列（RPDA），可重配置圆形补片天线（RCPA）和双端口可重构CRLH泄漏波天线。 RPDA，RCPA和CRLH泄漏波天线在可能的配置之间具有不同的配置数量以及不同程度的模式分集。 为了在网络中有效地使用这些天线，集中式和分散式天线配置选择方案的性能被量化以在一个或两个链路端重新配置。 网络的总容量用作量度这些天线在测量和模拟网络信道中的性能的度量。
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2.发明授权Reconfigurable antennas and configuration selection methods for AD-HOC networks 有权AD-HOC网络的可重构天线和配置选择方法公开(公告)号：US09565717B2
公开(公告)日：2017-02-07
申请号：US13634381
申请日：2011-03-18
IPC分类号： G01R31/08 , H04L5/14 , H04L12/28 , H04J3/16 , H04W84/18 , H01Q1/00 , H01Q3/24 , H01Q9/04 , H01Q9/14 , H01Q9/28 , H01Q21/08 , H01Q5/342 , H04B7/04 , H04W88/06
CPC分类号： H01Q21/29 , H01Q1/007 , H01Q3/24 , H01Q5/342 , H01Q9/0407 , H01Q9/0435 , H01Q9/145 , H01Q9/285 , H01Q13/203 , H01Q21/062 , H01Q21/08 , H04B7/04 , H04W84/18 , H04W88/06
摘要： Reconfigurable antennas in an ad-hoc network are provided where all nodes employ MIMO/SIMO/MISO communication techniques. Three types of reconfigurable antennas: Reconfigurable Printed Dipole Array (RPDA), Reconfigurable Circular Patch Antenna (RCPA) and Two-Port Reconfigurable CRLH Leaky Wave Antennas are used. The RPDA, RCPA and the CRLH Leaky Wave antennas have a different number of configurations as well as different degrees of pattern diversity between possible configurations. To effectively use these antennas in a network, the performance of centralized and decentralized antenna configuration selection schemes are quantified for reconfiguration at one or both link ends. The sum capacity of the network is used as a metric to quantify the performance of these antennas in measured and simulated network channels.
摘要翻译： 在所有节点采用MIMO / SIMO / MISO通信技术的情况下，提供了自组织网络中的可重新配置的天线。 三种类型的可重构天线：可重构可编配偶极阵列（RPDA），可重配置圆形补片天线（RCPA）和双端口可重构CRLH泄漏波天线。 RPDA，RCPA和CRLH泄漏波天线在可能的配置之间具有不同的配置数量以及不同程度的模式分集。 为了在网络中有效地使用这些天线，集中式和分散式天线配置选择方案的性能被量化以在一个或两个链路端重新配置。 网络的总容量用作量度这些天线在测量和模拟网络信道中的性能的度量。
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3.发明申请公开(公告)号：US20120106613A1
公开(公告)日：2012-05-03
申请号：US13146332
申请日：2010-01-25
IPC分类号： H04B17/00
CPC分类号： H01Q1/1257 , H01Q3/24 , H01Q9/0407 , H01Q13/10 , H04B7/0434 , H04B7/0689
摘要： A method allows reconfigurable multi-element antennas to select the antenna configuration in MIMO, SIMO and MISO communication system. This selection scheme uses spatial correlation, channel reciprocal condition number, delay spread and average Signal to Noise Ratio (SNR) information to select the antenna radiation pattern at the receiver. Using this approach, it is possible to achieve capacity gains in a multi-element reconfigurable antenna system without modifying the data frame of a conventional wireless communication system. The capacity gain achievable with this configuration selection approach is calculated through numerical simulations using reconfigurable circular patch antennas at the receiver of a MIMO system that employs minimum mean square error receivers for channel estimation. Channel capacity and Bit Error Rate (BER) results show the improvement offered relative to a conventional antenna selection technique for reconfigurable MIMO systems.
摘要翻译： 一种方法允许可重配置的多元天线在MIMO，SIMO和MISO通信系统中选择天线配置。 该选择方案使用空间相关性，信道倒数条件数，延迟扩展和平均信噪比（SNR）信息来选择接收机处的天线辐射图。 使用这种方法，可以在不修改常规无线通信系统的数据帧的情况下实现多元可重构天线系统中的容量增益。 使用该配置选择方法可实现的容量增益通过使用在使用最小均方误差接收器进行信道估计的MIMO系统的接收机处的可重构圆形贴片天线的数值模拟来计算。 信道容量和误码率（BER）结果显示出相对于可重配置MIMO系统的常规天线选择技术的改进。
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4.发明授权Systems and methods for selecting reconfigurable antennas in MIMO systems 有权用于在MIMO系统中选择可重构天线的系统和方法公开(公告)号：US08908787B2
公开(公告)日：2014-12-09
申请号：US13146332
申请日：2010-01-25
CPC分类号： H01Q1/1257 , H01Q3/24 , H01Q9/0407 , H01Q13/10 , H04B7/0434 , H04B7/0689
摘要： A method allows reconfigurable multi-element antennas to select the antenna configuration in MIMO, SIMO and MISO communication system. This selection scheme uses spatial correlation, channel reciprocal condition number, delay spread and average Signal to Noise Ratio (SNR) information to select the antenna radiation pattern at the receiver. Using this approach, it is possible to achieve capacity gains in a multi-element reconfigurable antenna system without modifying the data frame of a conventional wireless communication system. The capacity gain achievable with this configuration selection approach is calculated through numerical simulations using reconfigurable circular patch antennas at the receiver of a MIMO system that employs minimum mean square error receivers for channel estimation. Channel capacity and Bit Error Rate (BER) results show the improvement offered relative to a conventional antenna selection technique for reconfigurable MIMO systems.
摘要翻译： 一种方法允许可重配置的多元天线在MIMO，SIMO和MISO通信系统中选择天线配置。 该选择方案使用空间相关性，信道倒数条件数，延迟扩展和平均信噪比（SNR）信息来选择接收机处的天线辐射图。 使用这种方法，可以在不修改常规无线通信系统的数据帧的情况下实现多元可重构天线系统中的容量增益。 使用该配置选择方法可实现的容量增益通过使用在使用最小均方误差接收器进行信道估计的MIMO系统的接收机处的可重构圆形贴片天线的数值模拟来计算。 信道容量和误码率（BER）结果显示出相对于可重配置MIMO系统的常规天线选择技术的改进。
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5.发明申请RECONFIGURABLE ANTENNA SYSTEM FOR RADIO FREQUENCY IDENTIFICATION (RFID) 有权用于无线电频率识别（RFID）的可重新配置的天线系统公开(公告)号：US20120248187A1
公开(公告)日：2012-10-04
申请号：US13516233
申请日：2010-12-16
申请人： Daniele Piazza , Michele D'Amico
发明人： Daniele Piazza , Michele D'Amico
CPC分类号： H01Q23/00 , H01Q1/2216 , H01Q3/00 , H01Q3/01 , H01Q11/02 , H01Q13/28 , H01Q15/0006
摘要： An antenna system that allows increasing the reading reliability of RFId systems by dynamically changing the shape or the polarization of the electromagnetic field radiated by the RPId reader. The system includes at least one reconfigurable antenna, a variable DC bias unit and a methodology to efficiently use the system in RFId applications. The system allows changing the direction in which the energy is radiated or the polarization of the radiated field in order to “move” the electromagnetic field and to also read RFid tags that receive faint signals with standard RFid systems. Polarization alignment between the reader's antenna and the transponder allows for maximum power transfer, while changing the direction of radiation allows concentrating the electromagnetic field towards the transponder.
摘要翻译： 一种天线系统，通过动态改变由RPId读取器辐射的电磁场的形状或极化，可以提高RFId系统的读取可靠性。 该系统包括至少一个可重新配置的天线，可变直流偏置单元和在RFId应用中有效地使用该系统的方法。 该系统允许改变能量辐射的方向或辐射场的极化，以便移动电磁场并且还读取用标准RFid系统接收微弱信号的RFid标签。 读取器天线和应答器之间的极化对准允许最大功率传输，同时改变辐射方向允许将电磁场集中到应答器。
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6.发明授权公开(公告)号：US08967485B2
公开(公告)日：2015-03-03
申请号：US13516233
申请日：2010-12-16
申请人： Daniele Piazza , Michele D'Amico
发明人： Daniele Piazza , Michele D'Amico
CPC分类号： H01Q23/00 , H01Q1/2216 , H01Q3/00 , H01Q3/01 , H01Q11/02 , H01Q13/28 , H01Q15/0006
摘要： An antenna system that allows increasing the reading reliability of RFId systems by dynamically changing the shape or the polarization of the electromagnetic field radiated by the RPId reader. The system includes at least one reconfigurable antenna, a variable DC bias unit and a methodology to efficiently use the system in RFId applications. The system allows changing the direction in which the energy is radiated or the polarization of the radiated field in order to “move” the electromagnetic field and to also read RFid tags that receive faint signals with standard RFid systems. Polarization alignment between the reader's antenna and the transponder allows for maximum power transfer, while changing the direction of radiation allows concentrating the electromagnetic field towards the transponder.
摘要翻译： 一种天线系统，通过动态改变由RPId读取器辐射的电磁场的形状或极化，可以提高RFId系统的读取可靠性。 该系统包括至少一个可重新配置的天线，可变直流偏置单元和在RFId应用中有效地使用该系统的方法。 该系统允许改变能量辐射的方向或辐射场的极化，以便“移动”电磁场并且还读取用标准RFid系统接收微弱信号的RFid标签。 读取器天线和应答器之间的极化对准允许最大功率传输，同时改变辐射方向允许将电磁场集中到应答器。
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公开(公告)号：US20120274524A1
公开(公告)日：2012-11-01
申请号：US13516229
申请日：2010-12-16
申请人： Daniele Piazza , Michele D'Amico
发明人： Daniele Piazza , Michele D'Amico
IPC分类号： H01Q21/22
CPC分类号： H01Q23/00 , H01Q1/2216 , H01Q3/00 , H01Q3/01 , H01Q11/02 , H01Q13/28 , H01Q15/0006
摘要： Leaky wave antennas that can be reconfigured in pattern and/or polarization by exploiting the characteristic of metamaterial structures loaded with variable capacitor and inductors employ a Composite Right Left Handed (CRLH) unit cell with two independent DC biases used to actively change the group delay of the transmission line and the polarization of the radiated field while preserving good impedance matching. Different degrees of pattern and polarization reconfigurability are achieved by cascading multiple of these unit cells along a straight line, a circular line or a zigzag line while preserving high gain for all the antenna configurations and good impedance matching.
摘要翻译： 通过利用装载有可变电容器和电感器的超材料结构的特性，可以通过利用具有可变电容器和电感器的超材料结构的特性来重新配置图案和/或极化的泄漏波天线采用具有两个独立DC偏置的复合右左手（CRLH）单元，用于主动改变组延迟 传输线和辐射场的极化，同时保持良好的阻抗匹配。 通过沿着直线，圆形线或之字形线级联这些单位单元中的多个，同时保持所有天线配置的高增益和良好的阻抗匹配来实现不同程度的图案和极化可重新配置。
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公开(公告)号：US08217553B2
公开(公告)日：2012-07-10
申请号：US12228923
申请日：2008-08-18
申请人： Qin Xu , David Henderson , Daniele Piazza
发明人： Qin Xu , David Henderson , Daniele Piazza
IPC分类号： H01L41/08
CPC分类号： G02B7/102 , H02N2/02 , H02N2/067 , Y10T29/49002
摘要： A linear motor system includes an element with a threaded passage, a threaded shaft, and a driving system. The threaded shaft has an axis of rotation which extends through and is at least partially engaged with at least a portion of the threaded passage. The driving system comprises at least two members operatively connected to the element. Each of the two members comprises two or more piezoelectric layers and electrodes which are coupled to opposing surfaces of each of the piezoelectric layers. The members are configured to expand and contract in a direction along the axis of rotation. The driving system is configured to subject the element to vibrations causing the threaded shaft to simultaneously rotate and translate in the direction along the axis of rotation through the element and apply an axial force in the direction along the axis of rotation.
摘要翻译： 线性马达系统包括具有螺纹通道的元件，螺纹轴和驱动系统。 螺纹轴具有延伸穿过并且至少部分地与螺纹通道的至少一部分接合的旋转轴线。 驱动系统包括可操作地连接到元件的至少两个构件。 两个构件中的每一个包括耦合到每个压电层的相对表面的两个或更多个压电层和电极。 构件构造成沿着旋转轴线的方向膨胀和收缩。 驱动系统构造成使元件受到振动，导致螺纹轴沿着旋转轴线的方向同时旋转和平移，并且沿着旋转轴线的方向施加轴向力。
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公开(公告)号：US08279541B2
公开(公告)日：2012-10-02
申请号：US12635257
申请日：2009-12-10
申请人： David A. Henderson , Todd Haran , Matt Wrona , Qin Xu , Daniele Piazza
发明人： David A. Henderson , Todd Haran , Matt Wrona , Qin Xu , Daniele Piazza
IPC分类号： G02B7/02
CPC分类号： G02B7/08 , G02B7/022 , H02K41/0356 , H02N2/0015 , H02N2/0055 , H02N2/006 , H02N2/026 , H02N2/22 , Y10T29/49826
摘要： A lens actuator module includes a lens assembly with an optical centerline and a clear aperture, a bearing guide integrated adjacent to the clear aperture with the centerline of motion substantially parallel to the optical centerline, a linear actuator with a preloaded frictional contact point that moves the lens along the centerline. The preload force is perpendicular to the optical centerline, constant and generated in-line with the contact point such that the preload force produces substantially zero additional friction in the bearing guide irrespective of the location along the optical centerline.
摘要翻译： 透镜致动器模块包括具有光学中心线和透明孔的透镜组件，与透明孔相邻的轴承导向件，运动的中心线基本上平行于光学中心线;线性致动器，具有预加载的摩擦接触点， 透镜沿中心线。 预紧力垂直于光学中心线，恒定并与接触点成一直线，使得预加载力在轴承导向器中基本上产生零附加摩擦，而与沿着光学中心线的位置无关。
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公开(公告)号：US20100039715A1
公开(公告)日：2010-02-18
申请号：US12228923
申请日：2008-08-18
申请人： Qin Xu , David A. Henderson , Daniele Piazza
发明人： Qin Xu , David A. Henderson , Daniele Piazza
CPC分类号： G02B7/102 , H02N2/02 , H02N2/067 , Y10T29/49002
摘要： A linear motor system includes an element with a threaded passage, a threaded shaft, and a driving system. The threaded shaft has an axis of rotation which extends through and is at least partially engaged with at least a portion of the threaded passage. The driving system comprises at least two members operatively connected to the element. Each of the two members comprises two or more piezoelectric layers and electrodes which are coupled to opposing surfaces of each of the piezoelectric layers. The members are configured to expand and contract in a direction along the axis of rotation. The driving system is configured to subject the element to vibrations causing the threaded shaft to simultaneously rotate and translate in the direction along the axis of rotation through the element and apply an axial force in the direction along the axis of rotation.
摘要翻译： 线性马达系统包括具有螺纹通道的元件，螺纹轴和驱动系统。 螺纹轴具有延伸穿过并且至少部分地与螺纹通道的至少一部分接合的旋转轴线。 驱动系统包括可操作地连接到元件的至少两个构件。 两个构件中的每一个包括耦合到每个压电层的相对表面的两个或更多个压电层和电极。 构件构造成沿着旋转轴线的方向膨胀和收缩。 驱动系统构造成使元件受到振动，使得螺纹轴沿着沿着旋转轴线的方向同时旋转和平移，并且沿着旋转轴线的方向施加轴向力。
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