I tried out speed dating recently, it didn’t go well. The date was set up in a nice restaurant near my house. I wanted to stand out a bit and make a good impression. So I decided to wear my nice velour shirt. Well, apparently velour isn’t as classy as I thought it was, and I went home without a single phone number. I found out that night that material matters, something that has surprisingly translated into PCB design. Just like how your shirt’s cloth can affect the integrity of a speed date, your PCB’s material can affect the signal integrity of your high-frequency circuits. You can minimize attenuation on your board by choosing the right fiberglass, resin, and copper foil. There are a variety of best practices that will help you choose the optimal combo, though you have to watch out for price and other considerations.