Overview
SmithChartTool is used to observe transformational effects of different microwave elements (such as lumped elements, stubs, transmission lines, etc.) on impedance elements (from load to source).
Trivia
Since a proprietary Smith-Chart tool included in some high-end software-package literally saved me during a recent project I searched for standalone (open-source) Smith-Chart tools for not being reliant upon licenses. I found out, that several tools on the internet are either not "pretty", yet complicated to use, or just not modern enough.
In this project, I tried my best using MVVM (Model-View-ViewModel) approach in combination with CustomControls, Bindings, Validaters, Converters, Drag&Drop functionality and other WPF magic based on modern C# approaches (async, lambda, out parameters, auto properties). Impedance / admittance Smith-Charts and all transformational curves are generated using the fantastic oxyplot library.
Current features (some...)
- Input parameters may be input using SI-prefixes
- Drag&Drop of elements into schematic view (including rearrangement).
- Transformational curves and intermediate input impedances are shown.
- Projects can be stored and opened from disc.
- Smith-Chart itself may be exported to an image to use it in your documentation.
Releases
Build status
Documentation
As starting point, enter target frequency and reference impedance, drag & change elements and you directly may observe the resulting Smith-Chart transformation to match your circuit as you like.
Contributing
This project welcomes contributions of all types. Help spec'ing, design, documentation, finding bugs are ways everyone can help on top of coding features / bug fixes. I am excited to work with the community to build a neat tool for every (RF-) engineer around.
State of code
SmithChartTool is still a very fluidic project and I am actively working out of this repository. Periodic re-structuring/refactoring of the code could appear to make it easier to comprehend, navigate, build, test, and contribute to, so DO expect significant changes to code layout on a regular basis.
License Info
This program is free software; you can redistribute it and/or modify it under terms of the MIT license.
Copyright (c) 2022 bonbytes
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.