Hello I have a shorted transmission line that is 3 inch long by .1" wide on a standard double sided fr4 0.062" substrate. What I would like to know, is it possible to display the inductance of this transmission line in ADS.

Normally tlines are represented as impedance in ADS but it would be neat if there was a way of knowing the actual inductance of the transmission line instead.

The idea is to replace low inductance value inductors 10 to 20nh with a transmission line instead.

In the real world I do this using a vna connected to one end of the line and the other end of the line is grounded.

Simply read the inductance value off the smith chart. Perhaps it is possible to do something similar in ads. ?

Thanks Paul.

Normally tlines are represented as impedance in ADS but it would be neat if there was a way of knowing the actual inductance of the transmission line instead.

The idea is to replace low inductance value inductors 10 to 20nh with a transmission line instead.

In the real world I do this using a vna connected to one end of the line and the other end of the line is grounded.

Simply read the inductance value off the smith chart. Perhaps it is possible to do something similar in ads. ?

Thanks Paul.

For a shorted transmission line, one can use the Zin measurement item from Simulation S-Param palette to measure the complex input impedance. Then add another measurement equation to compute the equivalent inductance from the imaginary part of the input impedance:

my_ind=imag(Zin1)/(2*pi*freq)