Field and Wave Electromagnetics 2nd Edition by David Cheng

تمرين 75

For the case of oblique incidence of a uniform plane wave with perpendicular polarization on a perfectly conducting plane boundary as shown in Fig. 8-11, write
(a) the instantaneous expressions
E 1 (x, z; t) and H 1 (x, z; t)
for the total field in medium 1, using a cosine reference, and
(b) the time-average Poynting vector.