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Fabry-Perot resonator Screen Maxwell’s equations.

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Presentation on theme: "Fabry-Perot resonator Screen Maxwell’s equations."— Presentation transcript:

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3 Fabry-Perot resonator Screen

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5 Maxwell’s equations

6 general properties of linear waves

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8 Reflection coefficient Transmission coefficient X E H E H E H 0

9 What if? a Two perfectly conducting parallel sheets. Two plane waves. a

10 Parallel plates  = 0 implies no propagation in the z direction;  must be real for propagation x z a Two plane waves.

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14 waveguide w E y is independent of y coordinate

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17 Derive a dispersion relation for plane waves in a vacuum.

18 lossless media Plane EM wave Compute

19 lossy material copper @ f = 1 MHz Copper is a good conductor. Phase shift of 

20  r = 36; µ r = 4;  = 1 x y z H E 

21 wet soil  = 10 -2 ;  r = 15;  r = 1  f  comments w 60 Hz 2 x 10 5 good conductor w 1 MHz 12 quasi conductor w 100 MHz 0.12 quasi-dielectric w 10 GHz 1.2 x 10 -3 good dielectric

22 Square loop - area = 4m 2 - 2 resistors 22 44 x B = -0.3t T

23 Sliding bar - nonuniform B Rx B = B o x T x d

24 Displacement current = ? R

25 Power from sun

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27 Help!

28 = 10 -3 / cm 2 Help!

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30 I will proctor the exam.

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