Main >> Applications >> Sample problems

Transmission line attenuation constant

microstrip transmission line inductance, microstrip transmission line capacitance, attenuation constant calculation'

This example prepared by Elena Bozhevolnaya, Development Department,
LK A/S Industriparken 32 2750 Ballerup, Denmark

The shielded transmission line is considered. The line consists of 2 copper strip-like conductors (block labels - Elec1 and Elec 2) that are rested on the polyethylene substrate (Diel). The whole structure, that includes partly an air, is protected by a screen (Shield) of the complicated geometry.

Problem Type:
A plane-parallel problems of AC magnetics and electrostatics.

Geometry:

Solution:
Attenuation constant of the shielded microstrip-like transmission line is obtained on the basis of the electrostatics and time-frequency analysis.

Results:
Voltage distribution in transmission line:

See detailed description in Attenuation constant of the shielded microstrip-like transmission line (in PDF format).

View simulation report in PDF

Download simulation files: transmission line Electrostatics, transmission line AC magnetics (files may be viewed using any QuickField Edition).