Weird Ratios in Free Space
1 / ¶(m0Ke0) = ¶((4pE-7 ) (1e-9/36p)/K =
= ¶(9E16)/K =3E8/¶K = 3E8/n= the speed of
Different refractive indices correspond to different speeds of light in that medium....
1 / ¶(LTLCTL) = speed of voltage wave on Transmission Line _ 2/3 c
¶(m0/Ke0)=¶(4pE-7/(1e-9K/36p)=¶(14400p2/K)=120p W /¶K=377W/¶K
= Characteristic Impedance of Medium
¶(LTL/CTL) = Characteristic Impedance of Transmission Line
Generally, this =50 W
if lossless, LTL _ 250 nH/m and CTL _ 100 pF/m
light
m0 = 4pE-7 H/m = 400p nH/m
e0 = 1e-9/36p F/m = 1000/36p pF/m
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