Transmission Lines flashcards

EM Compatibility

Signal Integrity

EMC Legislation (3)

What must be considered if a circuit is electrically large?

Electrical size is usually
described in terms of...

Generally, a circuit is considered
electrically small if:

Capacitive crosstalk
minimisation (4)

The propagation constant equation

α in the propagation constant is...

β in the propagation constant is...

β in the propagation constant is mathematically equal to...

Units of α in the propagation constant

The wave equation

Difference between phasors and frequency domain

An alternative to the phasor V = Aexp(jθ)

y = f(t ____)

Phasor domain can only be applied to a transmission line if...

Inductive crosstalk
minimisation (5)

A inductive crosstalk shield must be...

Inductive shields work best...

Common method to reduce
inductive crosstalk

In an infinite lossless transmission line, energy is stored...

In an infinite lossless transmission line, the rate of energy storage is equal to...

Because...

The current in a infinite lossless transmission line is equal to...

From this we can deduce...

Terminating a finite transmission line with a load is the same as...

Reflection coefficient equation

Transmission coefficients

Capacitive transmission line coupling induces...

Inductive transmission line coupling induces...

The coupling voltage in a transmission line (far end)

Near end coupling signal duration is proportional to...

Near end coupling voltage has a duration:

where:

Impedance coupling minimisation

Equivalent PUL circuit for a lossless transmission line

Equivalent PUL circuit for a transmission line

Telegrapher's equation for L

Telegrapher's equation for C

What do the telegrapher's equations describe?

1D wave equation for the voltage on a lossless transmission line

Derive by...

For a lossless transmission line, characteristic impedance is...

Relationship between L, C and
propagation velocity

Relationship between L, C and
characteristic impedance

Lumped element approximation can only be used if...