- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
Simple MWS question
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Is the S21 linear (in MWS) given in terms of amplitude or intensity (amplitude^2)?
S-parameters in linear format represent the magnitude as defined in:
S_dB = 20.log(S_lin)
mogwai.
Another way of putting it is S21=20log(V2/V1) in terms of voltage amplitudes. If voltage cannot be uniquely defined ( i.e non TEM modes ) you could use field amplitudes or even power ratios whereupon it becomes 10log (.) .
-svarun
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