1. Time harmonic excitation magnetic field intensity H
Phase velocity
magnetic field intensity H
dielectrics

2. time harmonic em waves

3. 

4. time harmonic em waves
k is the
wavenumber

5. This is called a one dimensional Helmholtz equation.
solution

6. solution
Take the real part.

7. phase velocity
Velocity of a point of constant phase.

8. -10 10 z
t zq zy
5 t

9. -10 10 z
t zq zy
5 t

10. Coralville reservoir

11. phase velocity is a vector

13. electric power
microwave oven

14. x y z E H
Poynting’s theorm k x y z E k
Poynting’s theorm H

17. characteristic impedance
different symbols
characteristic impedance

18. characteristic
impedance
meter

19. plane waves in dielectrics

20. plane waves in dielectrics

21. -10 10 z
t z z
5 t

22. -10 10 z
t z z
5 t

23. -10 10 z
5 t

24. plane waves in dielectrics

25. plane waves in dielectrics

26. application
signal
generator
phase detector
plane waves