Field and Wave Electromagnetics 2nd Edition by David Cheng

Exercise 20

A 3 (GHz), y-polarized uniform plane wave propagates in the +x-direction in a nonmagnetic medium having a dielectric constant 2.5 and a loss tangent 10 - 2.
a) Determine the distance over which the amplitude of the propagating wave will be cut in half.
b) Determine the intrinsic impedance, the wavelength, the phase velocity, and the group velocity of the wave in the medium.
c) Assuming E = a y 50 sin (6 10 9 t + /3)(V/m) at x = 0, write the instantaneous ex­pression for H for all t and x.