1. The problem statement, all variables and given/known data The problem statement is shown on the picture [PLAIN]http://img252.imageshack.us/img252/1184/graphsq.jpg [Broken] 2. Relevant equations Debye's equation? 3. The attempt at a solution Hey guys, I am trying to figure out how to obtain the equation for the graphs, but from what I understand, losses start vanishing after the pole seen @ ~17GHz. I say the relevant equation is the Debye equation for complex permittivity, but honestly I'm not sure. Any help as always is appreciated.