I am wondering about going from 1/4 inch tound elements to about 3/8 inch
square
would effect the performance of this antenna.
Mike Hoblinski
N6IMF
It definitely will Mike, but not in a positive/negative way per se. Let me explain.
If you follow an optimized design that called for 1/4 inch round elements and substitute 3/8 in square tubing, the impedance and SWR bandwidth characteristics will change in the general sense, and these changes may or may not be desirable. I do not have the experience with LP antenna implementations that I do with Yagi or wire antennas, so perhaps there are other issues to consider. I would suspect that the low SWR points across the bands would simply shift. Changes in element diameters generally affects the electrical length, and in your example only a small amount.
Russ K0WFS