I am thinking to build two antennas (directional) for WiFi between two computers, but want to be really clear on some design and construction details before building.
I note that Wikipedia and a number of websites give similar general descriptions of Uda-Yagi antennas, but leave out some important details. Maybe someone here has some simple answers or links to where these things are clearly described:
1) Wiring up antenna... What should be considered here? A lot of people "slap" the wires on in what looks like a haphazard manner, but not much about exact spacing and why, etc, in relation to the boom and elements.
2) Some commercial antennas use plastic booms, others metal (aluminum or stainless steel), and I have seen one made from wood. I would think conductivity would be an important parameter, but these all (commercial and amateur homebrew) have claims of successful construction without any mention of this.
3) On multiple element designs (on a single boom), some use rods through the boom, others use rings, like washers. What is the difference?
4) In relation to above, should the elements have contact with the boom (some designs do not)?
Maybe I have more questions, but I'll stop here and see how this thread evolves.
Dominic