Transient Simulation of the Plane Wave Coupling to Non-Linearly Loaded Transmission Line Networks

The coupling of plane waves with arbitrary time functions, incident directions and polarizations to a transmission line network of single-wire lines above a perfectly-conducting ground plane is simulated in the time domain. The transient simulation allows taking into account non-linear loads like diodes. Based on classical transmission line theory, the network is converted into an equivalent circuit with distributed and lumped voltage sources to consider the excitation by the external field. The circuit is simulated using a circuit simulator written in MATLAB that is based on modified nodal analysis. The model is validated against an existing frequency-domain solution for linear loads. Exemplary results are shown for a three-wire network with different non-linear loads in parallel to a terminal resistor.