Figure 10: The antenna ground plane, specifically influencing the emission characteristics of the lower patch antenna, is also made of CFRP fabric.

The antenna ground plane, specifically influencing the emission characteristics of the lower patch antenna, is also made of CFRP fabric
Figure 10: The antenna ground plane, specifically influencing the emission characteristics of the lower patch antenna, is also made of CFRP fabric.
In order to achieve the high electrical conductivity required for the antenna ground plane, the surface has been metallised in a second process step. This complex process was planned and carried out at the Fraunhofer Institute for Surface Engineering and Thin Films in Braunschweig, Germany.