Roy Lewallen Inscribed thus:

lu6etj wrote:

No, no :) both wires are introduced in each driven element tubes, at
similar mode as a coaxial cable stripped of braid is introduced in a
gamma rod.

It's not obvious how you'd be able to effect an impedance match with
this method. To be able to match an arbitrary impedance, you need to
be able to adjust two things which are at least partially independent.
For example, a gamma rod length and series capacitance. With this
scheme, you've got the length of the wires inserted in the tubes. What
else can you adjust? Wire diameter will give you some variability, but
not an awful lot, and it isn't easy to vary.

Roy Lewallen, W7EL

Does "Folded Dipole" sound right...

--
Best Regards:
Baron.