Local geometry defines the RF lineBest Rogers PCB materials for 5G: Material & Design …. Engineering illustration, not a production photograph or test result.Local geometry defines the RF lineBest Rogers PCB materials for 5G: Material & Design …Best Rogers PCB materials for 5G: Material & Design …Dielectric: use an appropriate model DkContinuous reference planeWidth WhAir / defined coverh is the distance to the reference plane, not total board thickness.