What is 5G and why do people love it?

>Antennas are weird things.
nope, they perfectly obey Maxwell's theory.

>this design works and I'm using a FR4 substrate
assuming the thinnest available thickness of 0.8 mm, you've got two conductor plates which are at least 2 mm away from your excitation pad with no electrical connection. I reckon this'll get you -20 dBi at best.

that's the spirit, life has a funny way of telling you that you are shit day after day, then one day something happens. It may have not happened now but it will

5G is something only phoneplebs care about