Some of you have likely heard of L. B . Cebik W4RNL before and seen some of his many articles.  He was a well known antenna guru and SK for some time now. 
He presented a paper at the SVHFS conference we had in Oak Ridge TN (IIRC).
This attachment came from the North Fulton Amateur Radio League Newsletter this week.   (Alpharetta/Roswell GA area)  There is info on Cebik himself and ALL of his
antenna articles are now online and free.  Individual at one site and a pdf of all of them at another.  Thanks to Hal N4GG for getting this valuable info out.

73, Bob W4ZST