TRANSMISSION PROPERTIES OP CLOGSTON TYPE CONDUCTORS 713 



k' 



«n = 7)1 + KaW^Fl, nepers/mile, (51) 



164160 £)' 

 ^^= Z„ D'-d" (52) 



J.' 44.248 D' + d' -{D + d)Vi(D^ + d^) 



^ 2(£)i£>2 - did2)iDi - di){D, - di) 



^' " {Dl -d! + Dl- dl)Dl ' (55) 



''—+s^('+5)'/iF&)- 



(56) 



The parameters in (38) to (56) are defined as follows : 

 D2 = Outside diameter of outer laminated conductor in a Clogston I 



cable, in mils. 

 d2 = Inside diameter of outer laminated conductor in a Clogston I 



cable, in mils. 

 Dl = Outside diameter of inner laminated conductor in a Clogston I 



cable, in mils. 

 dl = Inside diameter of inner laminated conductor in a Clogston I 



cable, in mils. 

 D = Outside diameter of a laminated Clogston II cable, in mils. 

 d = Inner diameter of a laminated Clogston II cable, in mils. 

 w = Thickness of copper layers in mils, 

 ^mc = Frequency in megacycles, 

 ei = Dielectric constant of insulation between inner and outer lami- 

 nated conductors in a Clogston I cable, 

 € = Dielectric constant of insulating layers. 



AC KNO WLEDGMENT 



The author wishes to express his appreciation to H. S. Black, C. W. 

 Carter, Jr., J. T. Dixon and F. B. Llewellyn for valuable assistance and 

 advice in preparation of this paper. 



