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This method gives an accurate analysis of inhomogeneous coupled resistive transmission lines.
English (United States)
This text was extracted from a PDF file.
This is the abbreviated version, containing approximately
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Method for Computer Analysis of Transients on Coupled Resistive
Transmission Lines in an Inhomogeneous Medium
This method gives an accurate analysis of inhomogeneous coupled resistive
The prior method for homogeneous lines requires that a resistive line/lines be
considered as a sum of short ideal (lossless) sections interconnected with
resistors. For coupled lines, the interconnecting resistor becomes a network of
resistors (and can include line resistance as well as leakage conductance). If the
electrical length of each ideal line section is made short with respect to the
transition time of the waveforms imposed on the line, then each section can be
represented by 2N storage locations (where N is the number of coupled lines);
2N is required since each line has two waves propagating at the same time, one
forward and one reverse.
As the simulation time increases, the waveforms are passed from one
location to the next with fixed increments of simulation time, to represent line
delay. At the same time the resistive networks are used to modify those
waveforms, representing reflection, attenuation and coupling among the lines.
With inhomogeneous lines, delay simulation is more difficult since several
delay modes may exist. The simulation of these different propagation delays
requires a minimum of 4N storage locations per ideal line section. 2N locations
store the present values, and 2N locations store the waveform in the line one
time increment bac...