Electronic – Altium clear region


I have a four layer board: Signal, GND (internal power plane), VCC (internal ground plane), signal. My design includes a chip antenna that requires a completely cleared region at the edge of the PCB. In other words, all four layers in this region must be clear of copper of any kind. I know how to do this on the signal layers by simply limiting the size of my polygon pours on these layers. What I don't know how to do is maintain this cleared ares in the internal power and ground planes. I've played with keepout and cutout regions without success. What's the best approach?

Best Answer

Simply place a filled rectangle or polygon on the power and ground planes. Anything you place on the plane layers will become "not copper" on the finished board.