Here are two sites that might be of interest to you...

http://www.wa1mba.org/

http://www.w1ghz.org/ and the link here to the online microwave antenna
book provides some good reading.

Scott


Dave Typinski wrote:



I don't suppose you could point me at a decent reference for this
stuff, could you? I've found that Google (i.e., the web) is somewhat
lacking when it comes to explanations - especially accurate ones - of
where those nifty approximation equations come from.