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The constants of a transmission line are R=6Ω/km, L=2.2 mH/Km.G=0.25×10-6 ℧/km, C=0.005×10-6 F/km. Determine the characteristics impedance, propagation constant and attenuation constant at 1 KHZ.
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Answer : Z=R+jωL=6+j2π×1000×2.2×103=15.0766.540Ω/km

Y=G+jωC=0.25×106+j2π×1000×0.005×106=3.14×10589.540/km

Characteristic impedance Z0=ZY=15.0766.5403.14×10589.540=692.7711.50Ω

Propogation constant γ=ZY=15.0766.540×3.14×10589.540=0.02278.0140/km=(4.55×103+j0.022)/km

Since γ=α+jβ

where , α=attenuation constant

β=phase shift

Now, attenuation …

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