Field distributions within a rectangular cavity with vehicle-like features

A model vehicle cabin is constructed to investigate 3D field distributions generated by an onboard transmitter within the large partial cavity. Simulations performed using FEKO and CST microwave studio (CST MWS) are found to be in good agreement with internal field measurements acquired using a low disturbance automated probe positioner at 870 MHz. Results show vehicle furnishings change field distribution within the cavity and should be included for electromagnetic modelling and field exposure assessments. The study enhances understanding of complex field behavior within a vehicle. The results (e.g. E-field hotspots) can be used to optimize placement locations of on-board transmitters and introduce field mitigation techniques in appropriate locations if required.