Qucs project is going to be an integrated circuit simulator which means you will be able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can present the simulation results on a presentation page or window.- Qucs, briefly for Qt Universal Circuit Simulator, is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, harmonic balance analysis, noise analysis, etc.- Qucsator, the simulation backend, is a command line circuit simulator. It takes 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.For people who are familiar with such simulators they should remember ADS from Agilent Technologies, Microwave Office from AWR and all the other simulators.What's New in This Release: [ read full changelog ]· The new release comes with new translations into Arabic and Czech, model libraries for PMOSFETs, NMOSFETs, regulators, varistors and ideal components, and many new primitive components such as EPFL-EKV NMOS/PMOS V2.6, rectangular waveguide, HICUM L0 v1.2, HICUM L2 v3.23, photodiode, digital buffer, microstrip radial stub, phototransistor, RLCG transmission line and numerous new digital primitives. Passing parameters to Verilog-HDL and VHDL subcircuits and typed generic parameters of VHDL files are now supported as well as arbitrary in/out signals. Simulation time for digital files (Verilog and VHDL) are now stored in an additional configuration file and the import dialog has been replaced by a complete import/export frontend for the Qucs-Converter command line tool. US letter formats for schematic frame have been added. The build system now implements an additional install step for MacOSX and the appropriate icons.· In the analogue simulation core global nodes (e.g. subst!) have been introduced, property references inside the same instance of a component and variables in constant parameter simulation boxes are allowed. A noise figure property has been added to the amplifier model and the matrix power operation is available in the equation solver. The Qucs-Converter command line tool allows now to translate existing HICUM models into library elements as well as the translation of polynomial C's and L's and F, H, E and G polynomial SPICE sources.

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