I am trying to model transmission line parameters (R, L, G, and C) by using its electrical parameters, those parameters are frequency-dependent.

I want to build an electric circuit consist of Voltage Source in series with R and L, in parallel with G and C.

The amplitude of the Voltage source is constant, 1 V, but its frequency varies from (1 to 1000) Hz. I also have variable values for the parameters R, L, G, and C for each single frequency, as a single point. In Excel sheet.

I thank you so much, for your kind assistance and cooperation.

 

Welcome to AAC

It's all very good but I dunno what you are asking.

 

I am trying to model transmission line parameters (R, L, G, and C) by using its electrical parameters, those parameters are frequency-dependent.

I want to build an electric circuit consist of Voltage Source in series with R and L, in parallel with G and C.

The amplitude of the Voltage source is constant, 1 V, but its frequency varies from (1 to 1000) Hz. I also have variable values for the parameters R, L, G, and C for each single frequency, as a single point. In Excel sheet.

I thank you so much, for your kind assistance and cooperation.

How many hundreds or thousands of kilometers is your long line?

 

I want to call Simulink circuit from Matlab to run it many times in FREQUENCY DOMAIN, and at each time I want to save the output as a pair of points consist of (Freq,volt), to be able to find the transfer function.

It does not matter, consider it few km.

 

See long line with losses and a simplified circuit of two capacitors and a resistor.

 

Could you please view the attached file.

This is exactly what I am looking for.

I want to read the values from the Excel sheet and run the circuit.

This circuit runs in the time domain, I want it to run in the Frequenciy domain.