Skin Depth Calculator

The Skin Depth Calculator shown below is one of the most useful tools that an engineer or student must use to determine the minimum thickness of the metal to be deposited to minimize the loss in a trasnmission line.  This is particularly important for planar transmission lines (microstrip, co-planar waveguide,…) used on PCBs, RFICs, and MMICs.

Skin Depth is defined as the depth below the surface of a conductor where the current density has fallen to 1/e (about 0.37) of the current on the surface of the conductor (JS).  The Skin Depth formula shown below is valid at frequencies away from strong atomic or molecular resonances. 

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Electromagnetic Engineering is our core area of expertise and the foundation of our consulting business.