What is this antenna feed arrangement called? These are two different antennas, but the principle used is the same. I wish the pictures showed the feed a little better...


Monopole

Dipole

Folded unipole

Totempole



Answer: Folded unipole. Especially popular where cell sites co-locate on AM broadcast towers and they don't want to have a "hot" tower base. (Hot is when you don't turn the RF off and have to jump from a stepladder to the tower to avoid getting across the base insulator!)




The people who answered it right were:

G4AXX
G0CKV
dl9kr
WØRI
WQ8C
KX0R
Russ Ted Boldt
N9SCY
SV5DKL

Thanks to everyone who gave it a try.