**Question About the Feasibility of This Schematic** #1011
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Hello everyone, I am trying to simulate crosstalk with this setup. But unfortunately, it doesn't work: my signals remain at 0 V in my diagram. So I wonder if my setup is correct or if the coupled microstrip line does not allow my signals to pass through. If anyone has any ideas, I would appreciate it. Thank you in advance.
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Replies: 4 comments
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The coupled microstrip has no transient model in both old Qucsator and Qucsator RF. See ra3xdh/qucsator_rf#7 and #681 for more explanations. The adding of the TRAN model for transmission lines is on the way, but I cannot say when the works will be finished. Help is highly appreciated here. |
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Thank you for your response. Aside from providing you with a link to the equations, I do not have the skills to be of much additional help. |
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Qucs transmission line equations are frequency domain only. Also for Time Domain analysis of PCB's, the models would need to account for "coupling" between Edgewise and Broad-Side Microstrip and Stripline traces on other layers as well as vias... ngspice supports Twisted pair and KSPICE Coupled Multiconductor Line (CPL). You could experiment making sub-circuits with User selectable parameters. I believe Qucsator Coupled line and Twisted pair support Time Domain.
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It's been on the Qucs roadmap for a while. There is no reason not try this with Qucs-S. I'm a little short on time hunting down heavier stuff. But I can help. |
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The coupled microstrip has no transient model in both old Qucsator and Qucsator RF. See ra3xdh/qucsator_rf#7 and #681 for more explanations. The adding of the TRAN model for transmission lines is on the way, but I cannot say when the works will be finished. Help is highly appreciated here.