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RF POWER SENSOR WITH CHOPPER AMPLIFIER

机译:带斩波放大器的射频功率传感器

摘要

An RF power detector having a wide dynamic range may comprise a chopping amplifier and is configured to detect pulsed high frequency RP signals. The chopping amplifier controlled by a bias current regulator amplifies and chops an RF signal by periodically enabling and disabling the amplifier according to a system clock. The chopped high frequency RF signal feeds a Schottky diode biased to operate in the square law region for weak signals. The Schottky diode voltage is tapped and high pass filtered. The voltage drives a logarithmic and linear converter. The converter outputs are summed to produce an output voltage that is a repeatable and stable monotonically increasing function of the RF power.
机译:具有宽动态范围的RF功率检测器可以包括斩波放大器,并且被配置为检测脉冲高频RP信号。由偏置电流调节器控制的斩波放大器通过根据系统时钟周期性地启用和禁用放大器来放大和斩波RF信号。斩波后的高频RF信号馈入一个肖特基二极管,该二极管被偏置以在平方律区域中对微弱的信号进行操作。肖特基二极管电压被抽头并被高通滤波。该电压驱动对数和线性转换器。将转换器的输出相加以产生输出电压,该输出电压是RF功率的可重复且稳定的单调递增函数。

著录项

  • 公开/公告号EP2016432B1

    专利类型

  • 公开/公告日2013-09-18

    原文格式PDF

  • 申请/专利权人 VIASAT INC;

    申请/专利号EP20070783311

  • 发明设计人 LANG DAVID;LOPEZ NOEL A.;

    申请日2007-05-04

  • 分类号H03G1/00;G01R21/10;

  • 国家 EP

  • 入库时间 2022-08-21 16:34:55

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