864 



BELL SYSTEM TECHNICAL JOURNAL 



w 20 



- 

 -I 60 



-I 50 

 O 



Fig. 12 — Modified reflector having minimum response on axis. 



60 

 If) 



aj50 

 m 



uj 40 

 Q 



z 

 - 30 



_i 

 tu 



uj 20 



O 

 F, 10 



-40 -30 -20 -10 



10 20 30 40 



-40 -30 -20 



20 30 40 -40 -30 -20 

 ANGLE. G, IN DEGREES 



10 20 30 40 



Fig. 13 — Response patterns of reflector of Fig. 12. 



