161_1_Class7

161_1_Class7 - EE161 Electromagnetic Waves Spring, 2010...

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Unformatted text preview: EE161 Electromagnetic Waves Spring, 2010 Prof. Y. Ethan Wang Electrical Engineering Dept. UCLA Lesson 7 Lossy Medium Skin Effect Wave Absorption Reflectivity & Transmissivity Boundary between Lossy Media , 1 1 z z jk e e , 2 2 z z jk e e , 1 1 c , 2 2 c , 1 2 1 2 c c c c + = 1 2 2 2 1 c c c + = + = For normal incidence, the reflection & transmission coefficients are given by, Apply the following relations, For non-magnetic medium, they become The phase factor: The intrinsic impedance: , 2 1 2 1 c c c c + = 2 1 1 2 c c c + = ' ' ' j j c = = where The same relationship holds for oblique incidence onto a lossy medium, c by e.g. replace in all the previously derived equations! Example A 1-GHz x-polarized TEM wave is incident in air upon a metal surface coincident with the x-y plane at z=0. If the amplitude of the electric field of the incident with the x-y plane at z=0....
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This note was uploaded on 05/10/2010 for the course EE 190776201 taught by Professor Yuanxunethanwang during the Spring '10 term at UCLA.

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161_1_Class7 - EE161 Electromagnetic Waves Spring, 2010...

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