Chapter 4. Network Parameters

Dan Oh

Typically, the passive components of an I/O channel consist of various lumped elements and transmission lines, which introduce significant signal dispersion, reflection, attenuation, and crosstalk. One of the main tasks of signal integrity engineers is to provide accurate passive-channel models for high-speed channel analysis. RF engineers used network parameters (such as Y-, Z-, ABCD-, T-, and S-parameters) for decades as a convenient way to model a complex passive channel. Network parameters are becoming increasingly popular with circuit and SI engineers. Most of the modern SPICE simulators now support network parameters (such as S-parameter) as a circuit model for both time-domain and frequency-domain simulations. ...

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