BELL SYSTEM TECHNICAL JOURNAL 



100 



60 



50 



40 



30 



Z 



< 20 



O 



10 



L'oz 



SryUJ 



lD>r- 



o< I 



<U-T 



CQ 



10 100 



APERTURE IN WAVaENGTHS 



(EITHER PLANE) 



Fig. lA — Antenna beam width vs. aperture 



10 100 



AREA IN SQUARE WAVELENGTHS 

 Fig. lli — Antenna gain vs. aperture 



1000 



and beam width obtained in this manner are shown by shaded area labelled 

 usual design values. The need for higher frequency or shorter wavelength 



