Local geometry defines the RF lineVentec vs Rogers PCB Laminate Comparison. Engineering illustration, not a production photograph or test result.Local geometry defines the RF lineVentec vs Rogers PCB Laminate ComparisonVentec vs Rogers PCB Laminate ComparisonDielectric: use an appropriate model DkContinuous reference planeWidth WhAir / defined coverh is the distance to the reference plane, not total board thickness.