PCB Calculator: add Zdiff and Zcommon to the "Coupled microstrip line" calculator
Description
- Coupled microstrip line calculator doesn't show Zdiff and Zcommon results - they have to be calculated by user from Zodd and Zeven. In my opinion Zeven and Zodd fields in "Electrical Parameters" should be replaced by Zdiff and Zcommon which are much more useful.
- Zcommon equation should be moved below Zdiff, to make it more clear.
Steps to reproduce
- Open PCB Calculator
- Open "TransLine" tab
- select transmition line type: "Coupled microstrip line"
- enter PCB parameters: T = 35um copper, H = 0.17mm, Er=4.6
- Enter line "Physical parameters": W = 6 mil, S = 6 mil.
- Press "Analyze" button
- There is no field with calculated Zdiff and Zcommon
KiCad Version
Application: KiCad
Version: 5.1.6-c6e7f7d~87~ubuntu18.04.1, release build
Libraries:
wxWidgets 3.0.4
libcurl/7.58.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Platform: Linux 4.15.0-112-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.22
Boost: 1.65.1
OpenCASCADE Community Edition: 6.9.1
Curl: 7.58.0
Compiler: GCC 7.5.0 with C++ ABI 1011
Build settings:
USE_WX_GRAPHICS_CONTEXT=OFF
USE_WX_OVERLAY=ON
KICAD_SCRIPTING=ON
KICAD_SCRIPTING_MODULES=ON
KICAD_SCRIPTING_PYTHON3=ON
KICAD_SCRIPTING_WXPYTHON=ON
KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
KICAD_SCRIPTING_ACTION_MENU=ON
BUILD_GITHUB_PLUGIN=ON
KICAD_USE_OCE=ON
KICAD_USE_OCC=OFF
KICAD_SPICE=ON