Jim wrote:
>>> The key to this is knowing u' and u'' (u' is mu, u'' accounts for the loss
>>> component) for the material. Fair-Rite publishes this data for all of their
>>> materials as a graph of the values as a function of frequency in a dozen or
>>> so pages near the front of their excellent catalog.
You can also find the info using this link:
http://www.fair-rite.com/design-tools/materials/
If you click on the "xx Material" links on the left you get a data sheet with
the µ' and µ'' curves and if you click on the "Permeability (CSV)" links you
can download a .csv file to play with the numbers yourself.
Dan, AC6LA
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