Penetration Depth

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        Calculate:   Penetration Depth      Output Format        Notes

Definition:                           

Equation

Parameters

Diagram

Calculate Penetration Depth:                                    top

Parameter              

Value

Units

Special Values

Inputs:

er (rel. permittivity)
r (resistivity)
mr (rel. permeability) 1 for most media
         

Output:

dp (penetrat.  depth)

Output Format:                                                        top

Select Format: Scientific Engineering Fixed

Notes:                                                                       top

bullet
bulletThis formula applies to slight conductors.
  • Equal to the inverse of the complex component of the wave number, ki.
  • Equals the distance over which an incident wave decays to 1/e it's initial amplitude.
  • Relative permittivity = dielectric constant.
  • A conductor is "slight" when: 
  • Source:  Applied Electromagnetism Second Edition by Liang Chi Shen and Jin Au Kong, PWS Publishers, Boston, Massachusetts 1987
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    Copyright 2000-2001  Raymond J. Allen