Accurate multi-antenna receive signal computations for ray tracing

Accurate receive signal prediction for arbitrary complex multi-port systems is presented in this paper. The wave propagation is modeled by ray tracing and prior to the start of the simulation a full-wave solver is used to obtain the radiation characteristic and impedance matrix of the receive antenna system. Starting from known relationships, an advanced model of the receive system, based on subreceivers is derived. As shown by an example, this approach improves the simulation results when the plane wave assumption of incident wavefronts is not applicable.