View Single Post
Old Jan 03, 2012, 08:39 AM
IBCrazy is offline
Find More Posts by IBCrazy
Engineer for Christ
IBCrazy's Avatar
Amherst, VA
Joined Jun 2006
11,092 Posts
TexasAggie - You might find the little hooks help a lot. They won't harm anything at 1.3GHz. I make them as long as the feedpoint gap so the overall lobe lenght is consistent.

The lobes should be .5% longer than 1 full wavelength depending on the wire thickness you use. Wire thickness will change resonant wavelength, so the little details will change. Generally the thicker the wire, the higher the resistance (I know this sounds backwards but we're talking RF, not DC). My calculations were done with .035" wire. if you use thinner wire (say .030 or .025) you will need the lobes to be slightly longer than my calculations.

-Alex
IBCrazy is offline Find More Posts by IBCrazy
RCG Plus Member