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ECE3025, Summer 2011, Quiz 7
July 8, 2011
1. (2 points) Under what conditions will reﬂection and and transmission coeﬃcients be real valued?
2. (2 points) Under what conditions will reﬂection and transmission coeﬃcients be complex valued?
3. (2 points) Deﬁne standing wave ratio. Do you want this to be low or high in a device? Why?
4. (2 points) Explain how polarized sunglasses reduce glare.
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Unformatted text preview: 5. (2 points) What is the reﬂection of parallel polarization at Brewster’s angle? 6. (15 points) a) ﬁnd the critical angle for electromagnetic waves going from a material with ± r = 2 . 1 to a material with ± r = 2. b) Find the acceptance angle for a dielectric optical waveguide made from these two materials. 1...
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This note was uploaded on 02/08/2012 for the course ECE 3025 taught by Professor Citrin during the Summer '08 term at Georgia Institute of Technology.
 Summer '08
 CITRIN

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