Jouko.......you might try to GOOGLE:

"lattin antenna"

That may lead you to useful information.

Lee KA0FPJ


Yes Lee, Google found quite a lot of hits, but they all refer to one 5band
antenna design with no much
real information. So my question still remains open. Could some modelling
program give the answer?
I think those two alternatives differ at least in how much inductive loadind
they are causing to the lower frequency
and so shortening the total length of antenna.

Jouko OH5RM