1374 THE BELL SYSTEM TECHNICAL JOURNAL, NOVEMBER 1956 



13. 



12.6 



12.2 



11.8 J 



11 .4 



caa 



0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 



/3a 



11.0 



10.6 



10.2 



9.8 



9.4 



6.4 



6.0 



5.6 



5.2 



/3a 



4.8 



4.4 



4.0 



3.6 



3.2 



.TE,2 



01 



TM 



-TM11 



TM02 



0.1 0.2 0.3 0.4 



0.5 



aa 



(f) 



/3oa =6.465 

 f'=4 



0.6 0.7 0.8 0.9 1.0 



Fig. 2(e) and (f) 



