stainless steel skin depth in RF applications

Phony Account · science forum beginner Joined: 28 Jun 2005 Posts: 10

Hi group readers,

I realize the conductivity of steel is some 30-40 times worse than that
of copper. But for RF (10-100MHz) applications, it is the skin effect
that matters, then the surface conductivity of stainless is "only" six
times worse then copper.

However, a colleague of mine suggested the picture might be worse,
because at these frequencies we are talking about micron size
skin-depths, and in that case the grain structure of the metal may play
a role not accounted for in the simple theory.

Comments?

Thanks,

Mirko

Jim Potter · science forum beginner Joined: 29 Jun 2005 Posts: 1

Phony Account wrote:

Phony Account · science forum beginner Joined: 28 Jun 2005 Posts: 10

Jim Potter wrote:

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