Working with Dielectric and Negative Signal Layers

If you have multiple dielectric layers in the model, they must touch other dielectric layers or negative signal layers. This prevents “pockets” of air from developing. If you have a signal layer between two dielectric layers, the dielectric layers must touch. The signal layer may overlap the two dielectric layers; however, a signal layer may not touch a negative signal layer. You may create an air gap by defining a dielectric layer as air.