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XR2206 Signal Generator breaks up and distorts badly all waveforms

It works now but, to tell you shortly what got it working. Some pointed out that it is not worthy because of poor quality, well, I disagree strongly. The built quality seems excellent, with minor &...
rantoniusw's user avatar
3 votes

Contradiction between wave impedance mismatch and transmission line theory

This is an electromagnetic problem, not a circuit theory problem. Treating your transmission lines as circuit theory elements is fine for continuous lines but breaks down at junctions. In general ...
Tesla23's user avatar
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2 votes

Contradiction between wave impedance mismatch and transmission line theory

If the two transmission lines have the same characteristic impedance, then if you can connect them without introducing any other impedance in the transition region, there will indeed be no reflection ...
Neil_UK's user avatar
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1 vote

Contradiction between wave impedance mismatch and transmission line theory

Right, the wave spreads out into the higher-bulk-impedance but shorter/wider perimeter, which balance each other out for zero total effect. That's still a very hand-waving explanation, but may help ...
Tim Williams's user avatar
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1 vote

Contradiction between wave impedance mismatch and transmission line theory

The velocity of propagation, \$V_P\$ in a t-line is \$\frac{1}{Z_0\cdot C}\$ and this does not cause a reflection at the junction where two t-lines of equal \$Z_0\$ but unequal \$V_P\$ meet. It's a ...
Andy aka's user avatar
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5 votes
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Contradiction between wave impedance mismatch and transmission line theory

your \$\eta\$ formula is for a wave freely travelling in a medium. That's not the case for a transmission line, so you're applying the wrong formula there. The physics doesn't "care" about ...
Marcus Müller's user avatar

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