Qucs is an open-source circuit simulator that offers support for a wide range of simulations, namely DC, AC, S-parameter, Harmonic Balance analysis, and noise analysis.
It boasts a clean interface that gives users the possibility to work with multiple tabs at the same time.
Qucs bundles different components to choose from, namely resistors, capacitors, inductors, grounds, sub circuit ports, transformers, amplifiers, attenuators, isolators, circulators, voltage probes, transmission lines, nonlinear components (diodes), Verilog-A devices, digital components (buffers).
Furthermore, the application enables users to draw lines, arrows, ellipses, rectangles, embed text messages, and add diagrams (e.g. polar, truth table, timing diagram). The components can be added and moved with the use of the “drag and drop” support.
Qucs allows users to edit the components of the selected object, perform basic editing operations (cut, copy, paste, delete), rotate, zoom in or out, undo or redo their actions, insert wires, equations, ports, and ground symbol, as well as set markers on a graph.
There are several dedicated tools designed to help you use a text editor, perform filter synthesis analysis, calculate lines, conductor and dielectric losses, create matching circuits, and design sub circuits.
The generated project can be saved to the following file formats: SCH, DPL, VHD, V, VA, M, or OCT.
During our testing we have noticed that the program carries out a task very quickly and without errors throughout the entire process.
All things considered, Qucs gives you a hand whenever you need to simulate circuits. Although it comes packed with useful features, the process is not very intuitive and rookies may spend some time trying to configure the dedicated parameters.
Qucs, also known as Quite Universal Circuit Simulator, was developed as an accessible and open source GUI-based circuit simulator.
The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Harmonic Balance analysis, noise analysis etc. The simulation results can be viewed on a presentation page or window.
Qucsator, the simulation backend, is a Command Line circuit simulator that manages to take a network list in a certain format as input and outputs a Qucs dataset. It has been programmed for usage in the Qucs project but may also be
used by other applications.
- The new release comes with an interactive GNU/Octave interface. Support for C++ code export of symbol drawings associated with Verilog-A files, and direct association of symbol drawings to Verilog-HDL, Verilog-A and VHDL code has been implemented. In Verilog-HDL and VHDL subcircuits equations can be used. Syntax highlighting for Octave, Verilog-HDL and Verilog-A syntax in text documents has been added. Pre-compiled VHDL modules and libraries made from user written VHDL code is supported now. There are several new components, such as transistor models NIGBT, HICUM L2 v2.24, HICUM L0 v1.2g and HICUM L0 v1.3, tunnel diode, ideal coupled transmission line and an ideal hybrid. The package comes with a new translation into Kazakh. The equation solver now has a EMI receiver functionality implemented. The qucsconv command line data converter supports now Matlab v4 as an export file format.