[amsat-bb] Re: Gain VS Bandwidth at 2.4GHZ
Gordon JC Pearce
gordonjcp at gjcp.net
Sun May 17 11:48:57 PDT 2009
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
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.
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