Fig. 8 — A six-foot square strip lens half assembled. 



f=3860MC 



f=4iaO MC 



f =4360MC 



O 10 



u 



Q 



z 



o 



z 

 u 



(T 



<0 20 



i I 



25 



30 



20 10 10 20 20 10 10 20 20 10 10 20 



DEGREES 



Fig. 9— Directional patterns of a 3-foot diameter lens at several frequencies. 



67 



