Predicting the installed performance of a RF receiver´s antenna in its operational environment

This paper presents a modelling technique that predicts the detuning of a RF (Radio Frequency) receiver ahead of its installation into a vehicle. In fact, since the vehicle is rarely available during the equipment´s development phase, it becomes necessary to finalise the product even before it can be tested in its operational environment. The proposed model is based on a circuit approach which permits a fast evaluation of the resonant frequency shifting. The comparison with a 3D full wave simulation confirms the robustness of the proposed technique.