Field and Wave Electromagnetics 2nd Edition by David Cheng

Exercise 66

Refer to Fig. 8-15, which depicts three different dielectric media with two parallel interfaces. A uniform plane wave in medium 1 propagates in the + z-direction. Let T 12 and T 23 denote the reflection coefficients between media 1 and 2 and between media 2 and 3, respectively. Express the effective reflection coefficient, r 0 , at z = 0 for the incident wave in terms of T 12 , T 23 , and 2 d.