Generalisation - opracowanie

Generalisation Although we have studied the case of normal incidence only, the general picture we have
derived is considered to the applicable to a wide range of practical cases.
Thus whenever we have a metallic boundary supporting a magnetic field, we will
always assume the magnetic field is supported by a total surface current density K equal
in magnitude but at right angles in direction to the tangential component Ht of H, and
that the power dissipated per unit area of surface is
Wa =
1
2|Ht|2Rs (9.21)
where
Rs =
1
δσ
(9.22)
and
δ =
s
2
ωμσ
. (9.23)
We will find this ability to calculate the power lost, due to skin effect, per unit surface
area of a boundary, useful in the determination of the attenation of waves in both coaxial
lines and in hollow waveguides
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