Study of a Hybrid Solver Method for Vehicle-Installed Antenna Simulation

Radiation performance simulation of vehicle-installed antennas is highly demanding in terms of computational resources because the vehicle is an electrically very large structure and the vehicle versus antenna has a very large structure ratio. A hybrid solver method has been developed in CST Studio Suite to increase the computation efficiency by separately solving the vehicle and the antenna and then coupling the two solvers. In this paper we studied the computation accuracy and efficiency of cabin roof-installed cellular antennas using this hybrid solver method. The results demonstrated that the hybrid solver method with the uni-directional coupling type chosen is able to provide very close results to those obtained using the traditional full-wave single solver method and yet reduced 70% of the computation time.