Qucs (Quite Universal Circuit Simulator) is an integrated environment for designing and simulating electronic circuits. It combines schematic capture, simulation and results visualisation in a graphical application.
The software is particularly suited to analogue and RF circuit analysis. Users can construct electronic circuits, configure simulations and examine the resulting electrical behaviour through graphical presentations.
Qucs includes tools for exploring frequency responses, signal behaviour and circuit performance. Its simulation capabilities are complemented by facilities for mathematical analysis and the design of specialised RF components.
This is free and open source software.
Key Features
- Graphical schematic capture with editable electronic components.
- DC, AC, transient and S-parameter simulation.
- Harmonic balance analysis for nonlinear RF circuits.
- Noise and small-signal circuit analysis.
- Cartesian, polar, Smith chart and tabular data visualisation.
- Three-dimensional plots and timing diagrams.
- Transmission line calculator and RF matching tools.
- Filter synthesis and attenuator design facilities.
- Device model and subcircuit library management.
- Hierarchical subcircuits with configurable parameters.
- Mathematical equations for simulation data processing.
- Analogue circuit optimisation tools.
- Support for symbolically defined linear and nonlinear devices.
- Verilog-A interface for electronic device modelling.
- Built-in documentation and circuit simulation examples.
Website: qucs.sourceforge.net
Support:
Developer: Michael Margraf, Stefan Jahn and contributors
License: GNU General Public License v2.0
Qucs is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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