E E 3308 Electromagnetics II (Fall 2011) - Homework 9 Due Date:30 PM, November 17, 2011 1. A coaxial cable is divided into two regions, as shown in...

the class is Electromagnetics 2. The question is the first one in the PDF document I've attached. In the context of the question, my friend and I have written out the related magnetic fields to the electric fields of the incident, reflected, transmitted, and reflected transmitted waves, have established that the sum of incident and reflective waves is equal to the sum of the transmitted and reflected transmitted waves at z=0, noted that the magnitude of the transmitted and reflected transmitted E and H fields are equivalent due to the perfect metal boundary at z=d, and as such concluded that Gamma and Tau are both equal to 1 when z=0. However according to the solution to the problem (obtained from previous semesters--he reuses problems), we are way off, and he's put everything in terms of z=d. Can you steer me in the right direction?