Circuit Design Examples

Introduction

This repository showcases self-learning projects in electronics and RF engineering. Contributions or suggestions are welcome. Feel free to reach me out at andresmmera@protonmail.com

While my primary interest is RF engineering, this repo also includes general electronics designs for experimentation and learning. Bug reports or improvement ideas are appreciated.

Open-Source RF Engineering Software

The examples in this repo use the following tools

Tool	Licensing	Notes
Qucs-S	GPL v2	GitHub Repo
Qucs-S S-Parameter Viewer	GPL v3	GitHub Repo
EMerge	GPL v2	GitHub Repo
Sonnet Lite	GPL v2	Proprietary software. Free license

RF Projects

Couplers

#	Project	Frequency	Notes
01	Directional Coupler	2000 MHz	Microstrip. RO4003C
02	Branch-Line	2000 MHz	Microstrip. RO4003C