TRA VEI.IM; \VA VE TUBES 



739 



-3-2-1 1 2 



b 

 Fig. 2 — Propagation parameters ior p = 0.5. 



3.0 

 2.5 

 2.0 

 t.5 

 Q '-0 



OJ 



< 0.5 



y 



Q 



z 

 O-0.5 



§-,.0 



D 

 u. 

 -1.5 



-2.0 



-2.5 



-3.0 



-3.5 



-4.0 

 -5 



Fig. 3 — Propagation parameters iox p =1.0. 



