用VNA进行相干多音刺激反应测量

2017 89th ARFTG Microwave Measurement Conference (ARFTG) Pub Date : 2017-06-09 DOI:10.1109/ARFTG.2017.8000824

J. Teyssier, J. Dunsmore, J. Verspecht, Jim Kerr

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引用次数: 4

摘要

FFT模式下的快速频谱分析同时在被测件的输入和输出端口使用现代VNA进行。刺激信号为宽带重复多音信号。VNA的频谱分析仪相干模式考虑了测试信号的重复率。它调整它的傅里叶变换网格来匹配刺激的音调。这种相干模式允许确定性图像抑制。结果是更快，更准确的多音调测量。给出了NPR和ACPR测量的实例。

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Coherent multi-tone stimulus-response measurements with a VNA

Fast spectrum analysis in FFT mode is simultaneously performed with a modern VNA at the input and output ports of a DUT. The stimulus signal is a wideband repetitive multi-tone. The Spectrum Analyzer coherent mode of the VNA takes into account the repetition rate of the test signal. It adjusts its Fourier transform grid to match the stimulus tones. This coherent mode allows deterministic image rejection. The consequence is faster and more accurate multi tones measurements. Practical examples of NPR and ACPR measurements are given.

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2017 89th ARFTG Microwave Measurement Conference (ARFTG)

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