TLine2

Lossless transmission line with characteristic impedance Z0, frequency F and normalized length NL

    TLine2

Library

Modelica/Electrical/Analog/Lines

Description

Lossless transmission line with characteristic impedance Z0, frequency F and normalized length NL The lossless transmission line TLine2 is a two Port. Both port branches consist of a resistor with the value of the characteristic impedance Z0 and a controlled voltage source that takes into consideration the transmission delay. For further details see Branin's article below. Resistance R' and conductance C' per meter are assumed to be zero. The characteristic impedance Z0 can be derived from inductance and capacitance per length (L' resp. C'), i. e. Z0 = sqrt(L'/C'). The normalized length NL is equal to the length of the line divided by the wavelength corresponding to the frequency F, i. e. the transmission delay TD is the quotient of NL and F.

References:

Branin Jr., F. H.
Transient Analysis of Lossless Transmission Lines. Proceedings of the IEEE 55(1967), 2012 - 2013
Hoefer, E. E. E.; Nielinger, H.
SPICE : Analyseprogramm fuer elektronische Schaltungen. Springer-Verlag, Berlin, Heidelberg, New York, Tokyo, 1985.

Parameters

TLine2_0

NameLabelDescriptionData TypeValid Values

mo_Z0

Z0

Characteristic impedance

Scalar

mo_F

F

Frequency

Scalar

mo_NL

NL

Normalized length

Scalar

mo_TD

TD

Scalar

TLine2_1

NameLabelDescriptionData TypeValid Values

mo__nmodifiers

Number of Modifiers

Specifies the number of modifiers

Number

mo__modifiers

Modifiers

Add new modifier

Structure

mo__modifiers/varname

Variable name

Cell of strings

'v1'
'v2'
'i1'
'i2'
'er'
'es'

mo__modifiers/attribute

Attribute

Cell of strings

'start'
'fixed'

mo__modifiers/value

Value

Ports

NameTypeDescriptionIO TypeNumber

p1

implicit

Positive electrical pin of port 1

input

1

n1

implicit

Negative electrical pin of port 1

output

1

p2

implicit

Positive electrical pin of port 2

input

2

n2

implicit

Negative electrical pin of port 2

output

2