Re RATIO OF $ 



SUBORDINATE LOOPS ' 

 BETWEE 



TWO GROUPS OF EIGHT COUPLETS EACH 



^ S,N2T,C^3IN<H.B7 . ^"'ty"'»' .COsJ^(l-COS») 

 a SIN TT (4 SIN » + BT 8 SIN (f SIN *) 



FOUR GROUPS OF FOUR COUPLETS EACH 



. SIN a TI B SIN ■^ B') SIN (2 II SIN t ) ^ 



DIRECTION OF 



TRANSMISSION 



EIGHT GROUPS OF TWO COUPLETS EACH - 



. SIN STl (SIN 0-fB') SIN [TI SIN ) 



8 SIN n (2 SIN ^ + B*) 2 SIN (^ SIN ^) 



SIXTEEN GROUPS OF ONE COUPLET EACH - 



GOUATION OF DIAGRAM 



16 TT (4 SIN a -4- B'l _ 



-cosf) 



SIN 16 TT (^ SIN » 1- bQ 

 16SINTl(isiN« + B')' 



n-O.II R-0.15 



Fig. 15 — Effect of phasing between sections of an array. 



ff— ^5in 90' 



