We describe a post-processing technique that can extend the effective measurement bandwidth of narrowband vector receivers by phase aligning overlapping measurements. The method requires only knowledge of the desired phases of a periodic, multisine excitation, making it useful in the phase characterization of distortion products. We study the repeatability of the method and its sensitivity to both measurement parameters and phase measurement errors.
Citation: IEEE Transactions on Microwave Theory and Techniques
Pub Type: Journals
Broadband wireless communications, digitally modulated signal, large-signal network analyzer, multisine signal, phase alignment, phase detrending, relative phase, vector signal analyzer.