Funny thing is that I'm down with the slow-wave loading coil thing.
Maxwell's equations are your friend... not a very nice friend when
Bessel functions are involved, but...

Faster than light, though? Maybe the phase velocity in some tricky
cryogenic world, but I dunno...

Haven't seen much on superconducting antennas here... I read a paper
once with a superconducting magloop but they forgot to make the
matching network superconducting too.

Let's get the "bizarre but REAL" antenna thread going.

Wouldn't you like to have a QRP CW rig with a 3" magloop for 20m on the
top? The thermos full of liquid nitrogen is kind of a pain to lug
around...

Anyone built a "genetically" designed ham antenna yet? Might be a good
way to go for the "I have 50 feet between two trees to put up an 80m
dipole" crowd.

Maybe we could develop a combined performance+aesthetics genetic
algorithm to design efficient shortened vertical dipoles that look like
nice pieces of modern art and have a nice low voltage section to run
the coax out... you run the electromagnetic algorithm, weed out the
weak designs, then you have your neighbor click the most attractive
five and throw the rest out, and repeat!

-Dan