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kicad/pcb_calculator/attenuators/tee_formula.md

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Fix a few minor things in PCB Calc, and update units to SI. Fixes https://gitlab.com/kicad/code/kicad/issues/7525 Fixes https://gitlab.com/kicad/code/kicad/issues/3435
2021-02-13 22:28:43 +00:00
### Tee Attenuator
minor fixes about translatable help files in markdown
2019-10-01 07:56:35 +00:00
__Zin__ desired input impedance in &#x2126;<br>
convert last formula to markdown. Make them translatable.
2019-09-29 16:54:14 +00:00
__Zout__ desired output impedance<br>
__Zin = Zout__<br><br>
* __a__ attenuation in dB
* __L = 10<sup>a/20</sup>__ (the loss)
Fix a few minor things in PCB Calc, and update units to SI. Fixes https://gitlab.com/kicad/code/kicad/issues/7525 Fixes https://gitlab.com/kicad/code/kicad/issues/3435
2021-02-13 22:28:43 +00:00
* ___A = (L + 1) / (L - 1)___<br><br>
* ___R2 = 2 &radic; (L \* Z<sub>in</sub> \* Z<sub>out</sub> ) / (L - 1)___
Gerber plotter: add support of standard aperture regular polygon as flashed shape. Standard apertures are circle, rect, oblong and polygon (regular polygonal shapes with 3 to 12 vertices) The support of the standard aperture type polygon was missing in Gerber plotter.
2019-10-02 15:16:27 +00:00
* ___R1 = Z<sub>in</sub> \* A - R2___
* ___R3 = Z<sub>out</sub> \* A - R2___