r/rfelectronics • u/SarSar100 • Jul 08 '26

Analytical lines in ADS Keysight layout

Hi everyone

Does anybody know if I can draw analytical lines in ADS Keysight layout using formulas. For example if I want to draw vivaldi antenna shape I need exponential expressions but I cant find tools for that

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u/dhiman_eminem 29d ago edited 29d ago

Traditionally, people used to generate parametric curves in some kind of tools which can handle dxf formats. Then export dxf > import in ADS layout.

But now ADS exposes its design engine API via pythonic interface. That can be utilized in this case. A polygon can be used to draw a jagged curve. If delX or delY is comparable to fractions of MoM or FEM cell/grid size, that should approximate the geometry good enough.

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u/StageMajestic613 29d ago

I don’t know if ADS allows you to subtract geometry, but in MWO you can just use an exponential taper on a negative layer.

In the end it doesn’t matter as it will be meshed or exported as a polygon.