A dielectric (82, lz) of thickness d coats a perfect conductor. A uniform plane wave is incident perpendicularly on the coating from the surrounding medium with properties (ɛ, l1) 81, µi 82, µ2 Eo So Но a) What is the general shape of the fields in the three media? b) Determine the ratio between incident and reflected amplitudes (r = c) Calculate (S) in each region. d) Analyze the value of r=), when the wavelength is 2 and the thickness is d= /4, what can you conclude?

A dielectric (82, lz) of thickness d coats a perfect conductor. A uniform plane wave is incident perpendicularly on the coating from the surrounding medium with properties (ɛ, l1) 81, µi 82, µ2 Eo So Но a) What is the general shape of the fields in the three media? b) Determine the ratio between incident and reflected amplitudes (r = c) Calculate (S) in each region. d) Analyze the value of r=), when the wavelength is 2 and the thickness is d= /4, what can you conclude?

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