17 May
2009
17 May
'09
1:48 p.m.
Roger Kolakowski wrote:
Not that they were optimum tuned for the 2.5 GHz frequency but what polarity were the "Pringles Can" washer antennas that were so popular for Net-Stumbling a few years ago?
Theoretically linear, but they should be considered to be a quarter wave vertical with some crap lying around in the nearfield. They don't have any gain, and they certainly don't work as yagis - in fact, they work better sideways!
The can needs to be made of metal, and about 85mm in diameter. That will give you a belter of a wifi antenna. The threaded rod and washer idea is just stupid. Leave that off.
Gordon