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首页> 外文会议>75th ARFTG Microwave Measurements Conference >A novel method for measuring phase and group delay of mixers without a reference mixer
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A novel method for measuring phase and group delay of mixers without a reference mixer

机译：在没有参考混频器的情况下测量混频器相位和群时延的新方法

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Making phase and group delay response measurements on mixers and frequency converters has traditionally been a difficult and complicated process, requiring either modulated-signals (and demodulation), two-tone signals (a special form of modulation) or a system with a reference or re-converting mixer. This paper presents a method to measure the phase response of a mixer on a VNA using a novel phase-measurement method which can measure the input and output phase response independently, computing the transfer response directly. This method relies on a VNA system which utilizes swept-frequency phase-coherent sources and receivers to maintain a common phase reference. A software phase-locking method allows it to operate on frequency converters which have an in-accessible embedded LO, along with a well established method of calibration.
机译：传统上，在混频器和变频器上进行相位和群时延响应测量是一个困难而复杂的过程，需要调制信号（和解调），两音信号（一种特殊形式的调制）或具有参考或重合信号的系统转换混频器。本文提出了一种使用新型相位测量方法来测量VNA上混频器的相位响应的方法，该方法可以独立测量输入和输出相位响应，直接计算传递响应。此方法依赖于VNA系统，该系统利用扫频相位相干源和接收器来维护公共相位参考。一种软件锁相方法使它可以在具有无法访问的嵌入式LO的变频器上运行，并且具有完善的校准方法。

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