A comparison of measurement to simulation for an antenna on a vehicle.

摘要

As consumers require a growing number of information and entertainment systems in an automobile, the number of antennas integrated into a vehicle increases. A first pass approach to development of these antennas can be done with simulation. As the antennas operate at higher frequencies, however, simulation can become computationally expensive since the vehicle itself is part of the antenna. The Method of Moments (MM) technique is applied for a variety of frequencies ranging from 70 MHz to 1 GHz. Incorporating the Physical Optics (PO) approximation in a hybrid MM-PO approach can reduce the required RAM. The accuracy of the simulation results also needs to be verified with measurement. The measurements are performed at an advanced facility that allows a full three-dimensional radiation pattern measurement. These measurement and simulation results are compared.