Sounds like "The Half-Wave Vertical" by John Belrose, VE2CV in September
1981 _Ham Radio_. It's a sleeve dipole, like the antenna I've heard
called a "bazooka" when used at VHF. That used to be a common type of
VHF/UHF antenna although I don't see many around these days.

Roy Lewallen, W7EL

Michael St. Angelo wrote:
QST had an article about a 20 meter halfwave vertical that was end fed with
a coaxial matching section for 50 ohm feed.
It was essentially a j-pole constructed from coax. It was in a 1980-early
1990 issue of QST. Does anyone recall the article
and the issue?

Thanks,

Mike N2MS