archive: SETI Helix antenna formulas-
SETI Helix antenna formulas-
Sun, 20 Sep 1998 00:06:03 EDT
I wrote a spreadsheet (xls version 4) for the helix antenna formulas from the
website: www.mindspring.com/~nzkiwi/helix.html. The half power beam width
doesn't make sense. It gives 0.15 degrees for the HPBW, both on the website
and on my spreadsheet. Does anyone have the correct formula?