Modeling the Series Impedance of a Quad Cable for Common Mode DSL Applications

摘要

In order to accomplish the ever increasing demand of the user, new DSL technologies ('digital subscriber line') are developing. A lot of research is going on to use also the common mode signal beside the differential mode signal. This promising technique requires new reliable models. For the modeling good approximations for the series impedance are indispensable. In this paper a formula who calculates this impedance is presented and also validated with measurements.