All Questions
Tagged with theory transmission-line
5 questions
2
votes
2
answers
74
views
How should I think about "extra" impedances inserted within/across a transmission line?
I'm worried this might be two separate questions — or perhaps not any coherent question at all? — but some recent thinking about transmission lines made me realize I still don't know how to think ...
- 7,469
2
votes
2
answers
330
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Voltage wave in transmission lines
The solution for the voltage in a transmission line can be written as:
$$V(z) = V_o^+ e^{-jkz} + V_o^- e^{jkz}$$
The voltage $V(z)$ is the difference between the conductors of the line at a certain ...
- 45
7
votes
4
answers
2k
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Can a common-mode current exist on the inside of a coax shield?
People often say common-mode current flows on the outside of the shield, while the current on the inside of the shield is always opposed by an equal but opposite current on the center conductor. This ...
- 52.5k
1
vote
4
answers
359
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There is no reverse flow of energy in a mismatched transmission line, is this correct?
Is this text correct?
I use it when helping people to study for their Licence, and get a lot of indignant scorn for my assertion "It is important to realise, that, after the first brief flutter, no ...
- 533
2
votes
1
answer
314
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Quarter Wave Transmission Line transformer
Can someone explain to me exactly how a quarter-wave transmission line transformer is put into action? I mean, how does it operate and what values are usually taken into consideration, calculation ...
- 123