Hi everybody,
I am using HFSS to simulate a CPW structure which forms a tank circuit. The Capacitor is realised by the CPS and the inductors are realised by lumped inductors. The CPW is 1.5 mm long and it resonates at about 1GHz. HFSS can calculate Epsilon and I think that that is the relative permittivity. The results show that it it very high O(5000) although my substrate material is glas with a permittivity of 5.5 . Does someone hase an idea what is going on there.
Thanks in advance