Hello all of yours, i am looking for guys which are familar with reduction of emission from PCBs. The problem is we have a special setup an a 10 layer PCB for Fiber optics (Gbit/s). But there is a radiated wave between the Vcc and Gnd-Plane. We want to reduce this emisson by a special foil with an high loss above 1 GHz. Did anyone of you knows a company which able to do such a technic.