The windscreen antenna solution method reduces the computational requirements by meshing
only metallic elements while analysing the behaviour of the integrated windscreen antennas within
their operating environment. The analysis can take into account the physical features of
windscreen antennas and their surroundings.
The following physical features are taken into account when analysing windscreen antennas:
Finite sized windscreens
Arbitrarily curved (no extreme curvature) windscreens
Multiple dielectric windscreen layers (glass, plastic and other dielectric materials)
Multiple windscreens in a vehicle (multiple glass definitions supported)
The vehicle body
The presence of real ground
The analysis is based on the MoM and can be used in
conjunction with the multilevel fast multipole method (MLFMM).
It is an efficient approach due to only including the vehicle body and metallic antenna elements
in the MoM mesh. The windscreen layers are not
discretised.
Numerous electromagnetic characteristics of the windscreen antenna can be computed,
including:
Current distribution on the antenna and vehicle
Input impedance bandwidth and scattering parameters
Near field distributions and far field radiation patterns
Figure 1. An example of a windscreen antenna (on the left) and an automobile with a far field and
near field result (on the right).
