Advanced network modeling for inductively coupled antennas in ambient assisted living systems

We present a parametric modeling technique for a fast polynomial extraction of the physically relevant network parameters of inductively coupled RFID/NFC (radio frequency identification / near field communication) antennas. The input parameters for the approach are extracted by means of the Partial Element Equivalent Circuit (PEEC) method and the “Reduced Broadband Self-Impedance Models”. The parameters can be approximated very efficiently over the entire geometrical input parameter range of an antenna class with the presented method. The approach is compared to the results of a reference PEEC solver with regard to accuracy and computation effort.