Multi-scale modeling of antennas with TLM method

Time-domain full wave simulation techniques have proved to be very efficient for antenna design. Nevertheless, multi-scale modelling arising in many applications such as Very Low Frequency/Low Frequency (VLF/LF) antenna or wire-patch antenna remains a challenging problem. To avoid thin wire meshing with very fine details into large computational domains, an efficient way for modelling arbitrary oriented thin wires in 3D-TLM mesh is presented. The present technique improves the one proposed in [1] and is validated through measurements and simulations results for a circular wire-patch antenna.