Plane Electromagnetic Wave Propagation
This chapter is dedicated to the propagation of plane EM wave in different media. Here Maxwell’s equations for time-periodic plane waves are given alongside with consideration of the propagation of waves in lossless, low-loss and highly absorbing media. The phase difference between electric and magnetic fields of plane wave in good conductors is explained in detail as well. This chapter considers such questions as phase and group velocities of waves, Poynting’s theorem, the Poynting vector (instantaneous, complex, and time average), and also linear, circular, and elliptical polarizations of waves.