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首页> 外文会议>IEEE MTT-S International Microwave Symposium >Phase Calibration for Coherent Multi-Harmonic Modulated Signal Measurements Using Nonlinear Vector Network Analyzer
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Phase Calibration for Coherent Multi-Harmonic Modulated Signal Measurements Using Nonlinear Vector Network Analyzer

机译：使用非线性矢量网络分析仪相干多谐波调制信号测量的相位校准

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摘要

This paper proposes a novel phase calibration approach to enable multi-harmonic modulated signal measurements using existing nonlinear network analyzer (NVNA) receivers configured in wideband mode. The envelopes around the harmonics are captured sequentially so that the dynamic range (DR) of the measurement system is not compromised. A reference signal generated by a comb generator is used to ensure phase coherency between the harmonics, precluding the need to use a small frequency grid that typical solutions require. To validate its ability to make accurate measurements of multi-harmonic modulated signals, the proposed NVNA-based method is tested against a state-of-the-art oscilloscope. The proposed approach is applied first to an 8-tone signal that covers 14 MHz, then on a 5 MHz 1C-WCDMA signal. Both signals have three harmonics with the fundamental frequency at 1 GHz. The phase accuracy of the measured signal is within ±1.5° and ±10° for the first and second test signals, respectively.
机译：本文提出了一种新的相位校准方法，以使多谐波调制信号测量使用在宽带模式下配置的现有非线性网络分析器（NVNA）接收器实现多谐波调制信号测量。谐波周围的信封被顺序捕获，使得测量系统的动态范围（DR）不会受到损害。由梳状发电机产生的参考信号用于确保谐波之间的相干性，防止需要使用典型解决方案所需的小频率网格的需要。为了验证其进行多谐波调制信号的精确测量的能力，对基于NVNA的方法进行了测试，用于针对最先进的示波器测试。所提出的方法首先应用于8个音调信号，该信号覆盖14 MHz，然后在5MHz 1C-WCDMA信号上。这两个信号都有三个谐波，频率为1 GHz。测量信号的相位精度分别在第一和第二测试信号的±1.5°和±10°内。

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