kicad-doc-devs team mailing list archive

[Seth Hillbrand <seth@xxxxxxxxxxxxx>]

On 2019-06-13 16:57, Heitor wrote:
> Hi,
>
> I was checking the transline calculator from KiCad and found no
> documentation about the models used there. In the forums, Seth_h
> pointed to a few of them:
>
> - microstrip: H. A. Atwater, “Simplified Design Equations for
>   Microstrip Line Parameters”, Microwave Journal, pp. 109-115, November
>   1989 (info from
>   
> [here](https://forum.kicad.info/t/microstrip-formulas-in-pcb-calculator/9861))
> - coupled microstrip line:  “Accurate Wide-Range Design Equations for
>   the Frequency-Dependent Characteristic of Parallel Coupled Microstrip
>   Lines” (http://ieeexplore.ieee.org/abstract/document/1132616/) (info
>   from
>
> [here](https://forum.kicad.info/t/differential-pair-into-pcb-calculator/7390/5))
>
> but in the source of this calc there are 5 references for the
> microstrip, just grep ref in /pcb_calculator/transline/c_microstrip.cpp
> to see them. I'm confused about it.
>
> What are the references of the other models? I can add that to the
> docs, but I don't know what are them...

Hi Heitor-

What would you like to know?  The references are specific to each 
function that precede.

Best-
Seth