Chapter 9: Electromagnetic Waves - MIT OpenCourseWare

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where k = ω μεoo , kt = ω με , ηo = μ oo /ε , and ηt = μ/ε . Using these four equations to match boundary conditions at z = 0 for E// and H// , both of which are continuous across an insulating boundary, and dividing by Eo, yields: xˆ ⎡⎣cos ()ω+t (E r Eo )cos (ωt +φ)⎤=⎦xˆ (Et Eo )cos (ωt +θ) (9.1.15) yˆ ⎡⎣cos ()ωt −

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