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S-parameter of cascaded system, port impdance

Neither the 50 ohm source nor the 50 load are part of the system defined by the S-parameters. The S-parameters describe block "A" and block "B." I think your confusion might be ...
Jason's user avatar
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1 vote

S-parameter of cascaded system, port impdance

Why can I ignore this 50ohm port impedance when A and B are cascaded? It's not being ignored in the mathematics. It is already part of the S-parameter measurements made in the original 50Ω system. ...
Neil_UK's user avatar
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