Easy software for transmision lines simulation

[AmigoMaxwell]

Hi all!

I am looking for some small program wich allows me to simulate simple transmission (I do not even need to modelate them as real tx lines, i.e. microstrip, guideline, etc) lines. I just want to see how the line behaves when a square pulse is sent and, for example, a resistor terminator is placed here or there, or how are the wave reflections when some capacitor or inductance is placed

I have tried with the next ones:

Mefisto 2D (I can't send square pulses! And can't simulate tx lines with discrete components! )
Mefisto 3D (Same)
Hyperlynx LineSim (I want something like this! But the demo version doen't allow me to simulate!)
UltraCAD Transmission Line Simulator (Something with more options that this!)

I suppose I will be able to do this with software like HFSS or CTS but I think must be something easier!

Thanks for your help !

 

[lladnar23]

Spice is pretty easy... Try LTSpice, which is freely available from www.linear.com. All you need to do is use the ideal tline model...

 

[ADS_RFMW]

use AppCAD

 

[plasma]

use pcaad5 for antennas with Transmission Lines calculator in it.

**broken link removed**
https://chemandy.com/calculators/microstrip_transmission_line_calculator_Hartley27.htm

and TX-Line is a free, easy-to-use, Windows-based interactive transmission line calculator for the analysis and synthesis of transmission line structures. TX-Line enables users enter either physical characteristics or electrical characteristic for common transmission medium such as:

* Microstrip
* Stripline
* Coplanar waveguide
* Grounded coplanar WG
* Slotline

 

[fantomf4]

Do you need a SPICE like program or a Field solver (2 d or 3 d)?

 

[Azulykit]

I find this one useflul (it is not inexpensive):

w*w.polarinstruments.com/support/cits/AP122.html

It is a good start before going to a 3D solver.

 

[imodelit_moderator]

Dear AmigoMaxwell

Try QUCs from http://qucs.sourceforge.net/

Best Regards,
imodelit Moderator

 

[mpero]

Amigo

I guess you can get what you want with a nice free (and legal, not cracked) solver on

**broken link removed**

saludos
mpero

 

[nazanin]

you can use from serenade software for transmision line simulation

 

[ayan_ns]

u can use either sonnet software, which is freely available in the web. u can use ADS schematic or Momentum for the same problem.