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公开(公告)号：US20140184439A1
公开(公告)日：2014-07-03
申请号：US13904142
申请日：2013-05-29
发明人： Herschel A. Ainspan , Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Jean-Oliver Plouchart , Scott K. Reynolds , Mihai A. Sanduleanu , Alberto Valdes Garcia
IPC分类号： G01S7/02
摘要： A polarimetric transceiver front-end includes two receive paths configured to receive signals from an antenna, each receive path corresponding to a respective polarization. Each front-end includes a variable amplifier and a variable phase shifter; a first transmit path configured to send signals to the antenna, where the transmit path is connected to the variable phase shifter of one of the two receive paths and includes a variable amplifier; and a transmit/receive switch configured to select between the first transmit path and the two receive paths for signals, where the transmit/receive switch includes a quarter-wavelength transmission line that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.
摘要翻译： 偏振收发器前端包括被配置为从天线接收信号的两个接收路径，每个接收路径对应于相应的极化。 每个前端包括可变放大器和可变移相器; 第一发送路径，被配置为向天线发送信号，其中发送路径连接到两个接收路径之一的可变移相器，并且包括可变放大器; 以及发射/接收开关，被配置为在信号的第一发射路径和两个接收路径之间进行选择，其中发射/接收开关包括四分之一波长的传输线，当传输/接收开关 处于接收状态。
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公开(公告)号：US10983192B2
公开(公告)日：2021-04-20
申请号：US16512861
申请日：2019-07-16
发明人： Herschel A. Ainspan , Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Jean-Oliver Plouchart , Scott K. Reynolds , Mihai A. Sanduleanu , Alberto Valdes Garcia
摘要： Polarimetric transceiver front-ends and polarimetric phased array transceivers include two receive paths configured to receive signals from an antenna, each including a respective variable phase shifter. A first transmit path is connected to the variable phase shifter of one of the two receive paths and is configured to send signals to the antenna. A transmit/receive switch is configured to select between the first transmit path and the two receive paths for signals. The transmit/receive switch has an element that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.
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公开(公告)号：US10416283B2
公开(公告)日：2019-09-17
申请号：US14837671
申请日：2015-08-27
发明人： Herschel A. Ainspan , Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Jean-Oliver Plouchart , Scott K. Reynolds , Mihai A. Sanduleanu , Alberto Valdes Garcia
摘要： A polarimetric transceiver front-end includes two receive paths configured to receive signals from an antenna, each receive path corresponding to a respective polarization. Each front-end includes a variable amplifier and a variable phase shifter; a first transmit path configured to send signals to the antenna, where the transmit path is connected to the variable phase shifter of one of the two receive paths and includes a variable amplifier; and a transmit/receive switch configured to select between the first transmit path and the two receive paths for signals, where the transmit/receive switch includes a quarter-wavelength transmission line that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.
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公开(公告)号：US09800251B2
公开(公告)日：2017-10-24
申请号：US14879933
申请日：2015-10-09
发明人： Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Alexander V. Rylyakov , Jose A. Tierno , Soner Yaldiz
CPC分类号： H03L7/085 , G01R31/2824 , H03L7/093 , H03L7/1075 , H03L7/1077 , H03L7/18 , H03L2207/06
摘要： A method and system are disclosed for measuring a specified parameter in a phase-locked loop frequency synthesizer (PLL). In one embodiment, the method comprises introducing multiple phase errors in the PLL, measuring a specified aspect of the introduced phase errors, and determining a value for the specified parameter using the measured aspects of the introduced phase errors. In one embodiment, the phase errors are introduced repetitively in the PLL, and these phase errors produce a modified phase difference between the reference signal and the feedback signal in the PPL. In one embodiment, crossover times, when this modified phase difference crosses over a preset value, are determined, and these crossover times are used to determine the value for the specified parameter. In an embodiment, the parameter is calculated as a mathematical function of the crossover times. The parameter may be, for example, the bandwidth of the PLL.
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公开(公告)号：US09191057B2
公开(公告)日：2015-11-17
申请号：US13904142
申请日：2013-05-29
发明人： Herschel A. Ainspan , Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Jean-Oliver Plouchart , Scott K. Reynolds , Mihai A. Sanduleanu , Alberto Valdes Garcia
摘要： A polarimetric transceiver front-end includes two receive paths configured to receive signals from an antenna, each receive path corresponding to a respective polarization. Each front-end includes a variable amplifier and a variable phase shifter; a first transmit path configured to send signals to the antenna, where the transmit path is connected to the variable phase shifter of one of the two receive paths and includes a variable amplifier; and a transmit/receive switch configured to select between the first transmit path and the two receive paths for signals, where the transmit/receive switch includes a quarter-wavelength transmission line that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.
摘要翻译： 偏振收发器前端包括被配置为从天线接收信号的两个接收路径，每个接收路径对应于相应的极化。 每个前端包括可变放大器和可变移相器; 第一发送路径，被配置为向天线发送信号，其中发送路径连接到两个接收路径之一的可变移相器，并且包括可变放大器; 以及发射/接收开关，被配置为在信号的第一发射路径和两个接收路径之间进行选择，其中发射/接收开关包括四分之一波长的传输线，当传输/接收开关 处于接收状态。
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公开(公告)号：US20160036452A1
公开(公告)日：2016-02-04
申请号：US14879933
申请日：2015-10-09
发明人： Mark Ferriss , Arun S. Natarajan , Benjamin D. Parker , Alexander V. Rylyakov , Jose A. Tierno , Soner Yaldiz
CPC分类号： H03L7/085 , G01R31/2824 , H03L7/093 , H03L7/1075 , H03L7/1077 , H03L7/18 , H03L2207/06
摘要： A method and system are disclosed for measuring a specified parameter in a phase-locked loop frequency synthesizer (PLL). In one embodiment, the method comprises introducing multiple phase errors in the PLL, measuring a specified aspect of the introduced phase errors, and determining a value for the specified parameter using the measured aspects of the introduced phase errors. In one embodiment, the phase errors are introduced repetitively in the PLL, and these phase errors produce a modified phase difference between the reference signal and the feedback signal in the PPL. In one embodiment, crossover times, when this modified phase difference crosses over a preset value, are determined, and these crossover times are used to determine the value for the specified parameter. In an embodiment, the parameter is calculated as a mathematical function of the crossover times. The parameter may be, for example, the bandwidth of the PLL.
摘要翻译： 公开了用于测量锁相环频率合成器（PLL）中的指定参数的方法和系统。 在一个实施例中，该方法包括在PLL中引入多个相位误差，测量所引入的相位误差的特定方面，以及使用引入的相位误差的测量方面来确定所述指定参数的值。 在一个实施例中，在PLL中重复地引入相位误差，并且这些相位误差在PPL中产生参考信号和反馈信号之间的修正的相位差。 在一个实施例中，当修改的相位差超过预设值时，交叉时间被确定，并且这些交叉时间被用于确定指定参数的值。 在一个实施例中，该参数被计算为交叉时间的数学函数。 该参数可以是例如PLL的带宽。
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