DC resistance and characteristic impedance are both measured in ohms – and it may come as a surprise that they are not the same thing –
though both are important. The two however should not be mixed.
This presentation from the EIPC 2022 summer conference in Sweden explains how to remove the effect of dc resistance from TDR measurement of trace characteristic impedance.
On the Polar YouTube channel: www.youtube.com/watch?v=
Or direct from the Polar website: www.polarinstruments.com/mp4/
Many thanks to the EIPC for giving access to the content www.eipc.org
On the product front – Polar is adding a whole new enhanced Impedance View facility into Speedstack – expect an update in the next
If you would like to discuss how to remove resitive effects from impedance measurements simply mail firstname.lastname@example.org and a product specialist will get in contact with you.
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