An IP rating specifies how well an enclosure resists intrusion by solids and liquids. Antennas that are installed into a product can achieve high ratings depending on how they are installed. Since this installation is outside of our control, we cannot guarantee this with designs in general. However, customers have achieved ratings as high as IP67 with certain antennas when they are installed correctly.
Stand-alone antennas that are installed remotely and connected to the product with a cable, like the ID Series, HDP Series, SH2 Series and VDP Series, do have IP ratings since they do not depend on the installation in the enclosure.