Is there any PCB tool for 50 ohm transmission lines?

[Joan_Sparky]

@Walter2

I did see the info on importing an external image for a spiral, but of course that merely kicks the can down the road, and he then had trouble connecting to it, so maybe not the perfect answer.

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Designing spiral or helix [SOLVED]

Hello, I would like to design a spiral in Kicad but I can’t find any tool to do that. Until now I was creating the spiral in Autocad, then converted it to gerber and then export from GerberView as .pcb. Is there any way to design it entirely in Kicad? I’m attaching an image of an older spiral transferred to Kicad. Thanks [image]

Multi-layer PCB inductive antenna

I am trying to create a multi-layer PCB inductive antenna - currently 2 layers, maybe more in the future. I created a spiral pattern in a BMP file using the specs from (http://www.ti.com/lsds/ti/analog/webench/inductive-sensing.page) and imported it into KiCad using the Bitmap2Component Tool. [More detail, the 2nd layer is mirrored from the first so that the inside of one layer can be connected to the inside of the next layer and have the current flowing in the same direction in both layers. T…

That procedure will give you real tracks (in segments, not arcs) that you can connect to.
There is no need to further advance it though as KiCAD will have arcs in a not too distant future.
But if you need them now, you can make them.