Thierry, F4DWV, writes:

Looks like a lindenblad antenna
(http://www.amsat.org/amsat/articles/w6shp/lindy.html)
with a original feeding.

I think there is definitely a kinship there. Folding
back the dipole "legs" makes the dipoles less directive
and it becomes possible to use only two dipoles rather
than the four of the Lindenblad.

Of course, when I look at a Lindenblad in a certain
way, it appears to be a highly truncated, half-wave
section of a quadrifilar helical antenna radiating
in the normal (radial) mode. You have to tilt your
head just right to see it.

Jim, K7JEB