ece311_final_fall05

ece311_final_fall05 - ECE311 Final Exam December 13, 2005...

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Unformatted text preview: ECE311 Final Exam December 13, 2005 Name : ID : Problem ABET Outcome Points Score 1 6 15 2 6 13 3 6 7 4 8 7 5 8 7 6 7 13 7 6 6 8 1 10 9 1, 2, 3, 4 12 10 3, 4, 5 10 Total 100 1 1. (15 points) A plane wave is incident normally on an infinite planar perfect (electric) conductor. For the geometry shown, assume a phasor incident electric field in free space of E i = a x e- jk z . (a) (8 points) Find expression for the incident half-space fields, E 1 and H 1 , in the frequency domain (phasor form) and the time domain. 2 (b) (4 points) Find an expression for the surface current density at the conductor, i.e., z = 0. (c) (3 points) Find the Poynting vector s ( z ). 3 2. (13 points) Consider plane wave reflection from an infinite planar interface between free space (the inci- dent half-space) and some other dielectric medium which is infinite in extent. The standing wave pattern for the magnetic field, H = a x H x , is as shown. Find the wave impedance in Region 2, η 2 , as a function of the free space wave impedance, η ....
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This note was uploaded on 02/04/2012 for the course ECE 311 taught by Professor Peroulis during the Fall '08 term at Purdue.

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ece311_final_fall05 - ECE311 Final Exam December 13, 2005...

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