What is the advantage of having RADAR with variable polarization?

The advantage of having RADAR with variable polarization lies in its ability to reduce jamming with the same polarization. When a radar system can utilize various polarizations, it can effectively distinguish its signal from jamming signals that use the same polarization. This distinction allows the radar to maintain effectiveness in environments where jamming occurs, as it can switch to a polarization that is less affected by the interference, thus increasing its operational capabilities. This adaptive approach enhances the radar's ability to continue gathering critical information without being overwhelmed by jamming efforts that are specifically targeting one type of polarization.

In this context, the effectiveness of variable polarization systems is rooted in their ability to exploit the differences in how signals interact with objects based on their polarization properties, making the system more resilient against interference strategies that rely on a fixed polarization.