Plane Wave Reflection from a Media Interface (Good Conductor)

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    Maxwell's equation
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Homework Statement
Obtaning the Poynting vector for the conductor
Relevant Equations
Maxwell Equation
Hi,
Below are the expressions for the electric (E) and magnetic (H) fields in a good conductor.
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Using those, the Poynting vector can be determined as follows.

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By applying the appropriate conversions and starting from these equations, we obtain:
2.webp

4.webp


However, the result differs from the one in the book, where the relationship between the two intrinsic impedances is defined differently.

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