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Measuring 3-port mixed-mode S-parameters

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emeka arihilam
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EMC Measurements
emeka arihilam   7/2/2017 1:45:24 PM
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Hi,

I tried your method of Measuring 3-port mixed-mode s-parameters with a 4-port VNA (grounding port 4) on a pair of network cable. The far end of the pair was fully terminated and the near end connected to ports 2 and 3 which are configured as balanced. Port 1 was connected to a BCI which induced currents and voltages on the wires.

The aim was to investigate the mode conversion at the output end (i.e. @ balanced port 2).

The result showed equal conversion mode between the differential and common modes at the output port.

What is the implication of this result?

Thanks.

Edwin.

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