962 



THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1954 



1.2 



0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 



^ 



_L — g; 

 a- u)^ 



Fig. 8 • — Attenuation of reverse wave versus frequency at a fixed magnetic 

 field and saturation magnetization for various values of wjj/com = {n!iH)/M. 

 The curves for 0.5 and 1 are discontinued when p reaches unity. 



are supposed to be independent of radial distance from the cylinder axis. 

 For the geometries employed in practice, this \\\\\ be a reasonably good 

 assumption. Thus it is possible to relate the components of B and H 

 in cyHndrical coordinates (r, ^, z) through the tensor 



where m and k are given by the Polder relations (1) and are independent 

 of position. 



Written in cylindrical coordinates, Maxwell's equations in the ferrite 

 are therefore 



