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Unformatted text preview: ECE 329 Homework 9 Due: July 23, 2009, 5PM 1. For each of the four plane waves (in free space) described by a) E 1 = 2 cos( t z ) x V/m b) E 2 = E o cos( t z ) x E o sin( t z ) y c) H 3 = cos( t + z + 3 ) x + sin( t + z 6 ) y A/m d) H 4 = cos( t x ) z + sin( t x ) y A/m: i. Determine the expression for H or E that accompanies the given wave field. ii. Find the expression for instantaneous power that crosses a 1 m 2 area in the xyplane from z to + z . iii. Find the corresponding field phasors E and H so that E = Re { E e jt } and H = Re { H e jt } in each case. iv. Find time averaged power that crosses a 1 m 2 area in the xyplane from z to + z Note: you should be able to answer this part based on either part (ii) or (iii); you should preferably do the problem both ways. v. Determine the wave polarization using the following categories: linear polarized (state the polarization direction), circular polarized (state right or leftcircular), elliptical polarized.polarization direction), circular polarized (state right or leftcircular), elliptical polarized....
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 Fall '08
 Kim
 Electromagnet

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