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Brian Kelly wrote:
Heh. Somewhere along the line a long time ago some sage somewhere stated that there are only two basic types of antennas, point radiators which are really difficult to build and dipoles and their variants. The concept stuck and I've been wearing it ever since. There's got to be a history of the word dipole still in existence. If you look at the Wikipedia definition of "dipole", it refers to the equal and opposite charges existing at two points, akin to the equal and opposite charges existing at a point in time at the two ends of a 1/2WL piece of wire. Your 1/2WL continuous piece of conductor has two electromagnetic poles somewhat akin to the earth having two magnetic poles. I suspect it was ignorant hams who changed the meaning to two conductive fishin' poles pointed in opposite directions and fed in the middle. :-) -- 73, Cecil http://www.w5dxp.com |
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