"Reg Edwards" wrote in message
...
With a delta connection the line wires would have to opened out at
their ends and would radiate just as much as the triangular antenna
itself.

You are describing the Y connection. With delta connection the load is
between adjacent wires of the feedline. Look at any two wires of what you
describe, and there is a 1/2 wave dipole, center fed, formed by two of the
1/4 wave radiators. But, instead of the two halves of the dipole being fed
180 degrees out of phase, they are 120 degrees. Each 1/4 wave radiator is
part of two different dipoles. Each dipole is bent 60 degrees at the feed
point.

As for the feeedline, I presume what you have is like a twisted pair, but
there are 3 wires, not 2 You could not use a flat transmission line because
it would not be symmetrical.

Tam

With either delta or Y connection there is no 4th neutral wire. As the
whole system is balanced there would be zero current in the neutral
anyway.
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Reg.