The electric-field phasor of a uniform plane wave traveling downward in water is given by Where zË

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The electric-field phasor of a uniform plane wave traveling downward in water is given by

(V/m), -0.2:-10.2: E = î5e-0.2:e-j0.2:
Where zˆ is the downward direction and z = 0 is the water surface. If 4 S/m, (a) Obtain an expression for the average power density, (b) Determine the attenuation rate, and (c) Determine the depth at which the power density has been reduced by 40 dB.
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Fundamentals of Applied Electromagnetics

ISBN: 978-0132139311

6th edition

Authors: Fawwaz T. Ulaby, Eric Michielssen, Umberto Ravaioli

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