Question: HW # 4 . A two - wire transmission line is made of two bare wired and operates an 4 0 0 Hz .

\

4 .

A two

-

wire transmission line is made of two bare wired and operates an

400

.

The conductors are made of copper and placed in free space. The two wires need to pass through a very thick wall made of alumina and into a hot oven to connect to a temperature sensor

.

Because copper does not withstand high temperatures very well, the section inside the wall is made of tungsten but with identical dimensions to the outside wire. The geometry is shown in figure.

Calculate the line parameters

\ ((\

mathbf

{

}, \

mathbf

{

}, \

mathrm

{

}, \

mathrm

{

} \))

for the segment inside the wall and the line outside the wall.

$HW \ # 4 . A two - wire transmission line is made$

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