RADAR ANTENNAS 



245 



u 0.6 



Q- 0.4 



5 



> 0.2 



-srr -4n -srr - 2n -no n 2n sn 4n 5n 



_ no SIN a 



Fig. 15 — Pattern of Rectangular Antenna with Cubic Phase Variation. 



O- 0.4 

 < 



■2n 



Fig. 16 — Pattern of Rectangular Antenna with Cubic Phase Variation. 



3.11 Two General Methods 



In sections 3.7 and 3.8 we integrated (36) by expressing a'(x)e'*'^''^ asa sum 

 of terms of the form e* "". Since c'(x)e' "" for finite amplitudes in a finite 



