The printed circuit board sits at the heart of every electronic system, serving as the foundation upon which signal integrity either thrives or collapses. When your designs operate in the radio frequency (RF) and microwave spectrum—above 1 GHz—subs...

Every PCB substrate material influences how electrical signals propagate through copper traces, but at high frequencies this influence becomes the dominant factor determining whether a design succeeds or fails. The dielectric constant (Dk) and diss...