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5. Special case of S parameters
In radio frequency, it is difficult to measure conventional parameters (impedance, admittance), and we prefer to characterize circuits by their S parameters.
5.1 "Incident and reflected "waves" from a multipole: Kurokawa "waves
Let's consider a multipole, an N-port device ( 24 ), for which we define, for each m port, the complex classical quantities V m and I m expressed as rms values.
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Special case of S parameters
