LAMINATIOD TRANSMISSION LINES. I 943 



"'' 2(P„ + 2I\) ^ ^ 



^1 / , , (tail 0„ + tan u) + (2/x ^7 3M()^>')(tiin 02 + tan {') 

 -.coVm,,.,, 1 + (2V36)V^^4^ ' 



wliich ivdiiees to (249) if \V(> ne<>;l('ct the terms in s b. The total attenua- 

 tion is tlie sum of the metal losses, <i;i\-en by (Miuation (110), and the 

 dielectric and magnetic losses. 



For a coaxial C'logston I cable with iutinitesimally thin laminae and 

 high-impedance boundaries, the principal held components are given by 

 ecjuations (12())-(128) of Section I\'. In the main thelectric we have 



n^ n^ - — 



\vhil(^ in the iinier stack, 



and in the outer stack, 



E. 





(259) 



(260) 



2xp(b^ - p;) ' 



^ Kb' - p') 

 I' 2Tp{b^ - pi) 



(261) 



The average power transmitted through the main dielectric is 



1 . AT //*,„„ P2 



2 V «o 2x pi 



while for the average power transmitted through the inner and outer 

 stacks it will be sufficient to replace the exact expressions V)y the follow- 

 ing simple approximations, 



p, ~ 1 /^ Ul^ (9(U) 



2 Y i 2t 3p2 



