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transmission line models

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Presentation on theme: "transmission line models"— Presentation transcript:

1 transmission line models
losses and dispersion

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3 Telegraphist's equations
with losses, etc.

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12 propagation no propagation

13 w b wo bo

14 w wo bo b

15 trig identity

16 a b a+b

17 z1 z2 z3

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19 Movie that illustrate “phase mixing” of two propagating waves

20 Movie that illustrates the propagation of a modulated signal on a dispersive transmission line

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24 examples

25 Find the transmission coefficient
Zc1 Zc2

26 calculate the power in the two
transmission lines Zc1 Zc2

27 calculate the power in the two
transmission lines Zc1 Zc2

28 50  100  L = 200 m. 5-5b calculate the power in the two
transmission lines Vinc =100 V 50  100  L = 200 m.

29 A slotted line permits the measurement of the VSWR
A slotted line permits the measurement of the VSWR. The minimum voltage is at -zmin. Find the magnitude and the phase of the reflection coefficient phase

30 5.8d An ideal transmission line is terminated with a resistance whose value that is ½ the characteristic impedance on the line. What resistance can you put in parallel with the line /4 in front of the load to minimize the reflection? ZL ZQ

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