As an RF microwave circuit designer, I frequently need to make transmission-line components. My current workaround in Kicad is to make curves and spirals as components in the module editor, but that can be rather time-consuming. The experimental microwave component layout facility in PCBNEW is very useful, and it would be good to see a few other microstrip/stripline components in that section. I'd offer to contribute, but my congenital (in)ability to write code has been known to reduce software engineers to tears...
Best wishes Chris
