GUIDED-WAVE PROPAGATION THROUGH GYROMAGNETIC MEDIA G15 



order just 2c/ 1 + c. Thus, G(Xi , a) to zero order is 



1 



1 + c 



2c 



_'•■ ('■« \/^Y 



2c 



+ c 



But wo have, in this ease, ^(Xo) = 0, so that 



2c 



Zi 



1+c ro^ ' 



where ^l is the smallest non-zero root of F(z) = 1. From the Polder 

 relation, the leading term of Xo is —p/(l + c)e, and consequently the 

 leading term of /3" is 



V _^('~2^^) 



(1 + c)e 



1 



This analysis is readily extended to the next order term, which is stated 

 in Section (4.17). 



From analogous considerations concerning the variation of one G- 



•2.4 -2.2 -2.0 -1.8 -1.6 -1.4 -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 



- -0.4 



Fig. 9(g) - See Fig. 9. 



