While looking for a way to get a little more bandwidth out of an 80
meter antenna, I mocked up an antenna in EZNEC that was thick. I plan on
making an antenna with spreaders and run 4 wires on each leg of the dipole.

I emulated this in EZNEC by simply making the wire thickness quite
thick, ranging from 4 inches to a foot.

The interesting thing was that as the thickness increased, the antenna
length decreased for min VSWR.

Is this a real thing?