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公开(公告)号：US20150288461A1
公开(公告)日：2015-10-08
申请号：US14434785
申请日：2012-10-12
发明人： Darrell Barabash , Russell Morris
CPC分类号： H04B17/101 , G01R27/06 , H04B1/0458 , H04B1/0475 , H04B17/103 , H04B17/12 , H04W24/06
摘要： A method includes accessing sets of correlation values, each set corresponding to a correlation performed between a number of first samples and a same number of second samples. The sets of correlation values were determined by aligning the number of the first samples with selected second samples and sliding the number of first samples across the second samples to select different sets of the second samples. The first samples are samples of a forward signal transmitted over a cable/connector system to one or more antennas, and the second samples are samples of a reflected RF signal that comprises a reflected version of the forward signal. The method includes determining a maximum value from the plurality of sets of correlation values, and associating the maximum value with a return loss of the cable/connector system. Apparatus, computer programs, and program products are also disclosed.
摘要翻译： 一种方法包括访问相关值集合，每个集合对应于在多个第一样本和相同数量的第二样本之间执行的相关。 通过将第一样品的数量与所选择的第二样品对齐并在第二样品上滑动第一样品的数量以选择不同的第二样品组来确定相关值组。 第一个样本是通过电缆/连接器系统传送到一个或多个天线的正向信号的采样，第二采样是包括正向信号的反射版本的反射RF信号的样本。 该方法包括从多组相关值中确定最大值，并将最大值与电缆/连接器系统的回波损耗相关联。 还公开了装置，计算机程序和程序产品。
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2.发明授权Power amplifier transistor characteristic stabilization during bias switching 有权功率放大器晶体管特性在偏置开关期间稳定公开(公告)号：US09294038B2
公开(公告)日：2016-03-22
申请号：US13872772
申请日：2013-04-29
发明人： Darrell Barabash
CPC分类号： H03F1/0205 , H03F1/301 , H03F3/245 , H03F3/72
摘要： Communications equipment including communications equipment for wireless communications may benefit from power amplifier transistors having stabilized characteristics. For example, certain power amplifier transistors may benefit from having their characteristics stabilized during bias switching. An apparatus can include a power amplifier device. The apparatus can also include a voltage or current input to the power amplifier device. An input voltage or current to the voltage or current input can be configured to be controlled according to scheduled transmission in a slot. The apparatus can also include a gate bias insertion circuit provided at the bias input. The gate bias insertion circuit can be configured to provide a reduced input voltage or current as a power amplifier bias. The reduced input voltage or current can be configured to correspond to a threshold of a transistor of the power amplifier when transmission is not scheduled in a slot.
摘要翻译： 包括用于无线通信的通信设备的通信设备可能受益于具有稳定特性的功率放大器晶体管。 例如，某些功率放大器晶体管可能受益于在偏置切换期间使其特性稳定。 装置可以包括功率放大器装置。 该装置还可以包括向功率放大器装置输入的电压或电流。 可以将电压或电流输入的输入电压或电流配置为根据时隙中的调度传输进行控制。 该装置还可以包括设置在偏置输入端的栅极偏置插入电路。 栅极偏置插入电路可以被配置为提供作为功率放大器偏置的降低的输入电压或电流。 当在时隙中不调度传输时，降低的输入电压或电流可被配置为对应于功率放大器的晶体管的阈值。
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公开(公告)号：US20140210450A1
公开(公告)日：2014-07-31
申请号：US13749998
申请日：2013-01-25
发明人： Darrell Barabash , Russell Morris , Donald Hutton
IPC分类号： G01R21/00
CPC分类号： H04B17/103
摘要： Systems and techniques for return loss estimation are described. A forward power sample is taken from a power amplifier of a transmitter by sampling a feedback signal used for power control of the amplifier, and a reflected power sample at an output of the power amplifier is taken by observing the power at a circulator termination of the power amplifier. A difference determination is made for the forward power sample and the fleeted power sample in the analog domain to determine a return loss and may be digitized for further processing such as return loss measurement and comparison against thresholds. A further comparator circuit may be used to insure that measurements are made when the signal strength is adequate.
摘要翻译： 描述了回波损耗估计的系统和技术。 通过对用于放大器的功率控制的反馈信号进行采样，从发射机的功率放大器取出正向功率采样，并且在功率放大器的输出处的反射功率采样通过观察在循环器端接的功率 功率放大器。 对正向功率采样和模拟域中的车队功率采样进行差分确定，以确定回波损耗，并可进行数字化以进一步处理，如回波损耗测量和与阈值的比较。 可以使用另外的比较器电路来确保在信号强度足够时进行测量。
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