While looking for something else, I came across two interesting antennas in
the USPTO data base. Sixty years separates their filing dates.

Patent 2,268,640 shows an antenna invented by the famous George H. Brown.
It may be the first use of nested Yagi type antennas.

Patent 6,411,264 shows a supposed improvement on the 8JK antenna such that
efficiency is preserved and a large F/B is effected. The inventor is N7CL.

Http://www.uspto.gov/ is a place to start. Go to Patents and then to
Patent Searches.

Enjoy, Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
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