"Roy Lewallen" wrote

Energy travels just
as well along close spaced conductors as it does along wide spaced
ones.
In fact, loss due to radiation is greater with wider spacing than
narrow

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In fact, the field radiated from correctly balanced twin or open-wire
lines is directly proportional to wire spacing.

Radiation resistance is the same as a monopole of the same length as
the wire spacing in terms of wavelength. Rr even at VHF is quite
small.

Radiation is off the ends - i.e., in the same direction as the line.

Polarisation is in the same direction as the wires are spaced.

And, believe it or not, all is independent of the length of the line.
----
Reg, G4FGQ