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description=Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are 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 view the simulation results on a presentation page or window.;
keywords=Qucs, circuit, simulation, S-parameter, DC, AC, harmonic balance, transient, noise;
author=Stefan Jahn;

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qucs project quite universal circuit simulator latest news latest stable release 0 0 19 source windows ubuntu os x official sourceforge repository github mirror qucs wiki 22 january 2017 released qucs 0 0 19 news 18 september 2015 publication qucs an introduction to the new simulation and compact device modelling features implemented in release 0 0 19 0 0 19src2 of the popular gpl circuit simulator 13th mos ak workshop graz a the presentation slides by mike brinson are available online 19 january 2015 enabled automatic generation and deployment of doxygen source code documentation latest documentation for master branch available for qucs gui and qucs core 07 january 2015 enabled linux and osx builds on travis ci enabled code coverage with coveralls 17 september 2014 released installer fo mac osx 10 6 intel 64 bit asco included 02 september 2014 updated package for ubuntu 14 04 trusty and 14 10 utopic ubuntu ppa 01 september 2014 updated doxygen code documentation 01 september 2014 released mac osx installer 10 7 to 10 9 asco included for freehdl verilog a users are better served using a package manager for mac osx 31 august 2014 released qucs 0 0 18 news 04 april 2014 updated build instruction for darwin mac osx linux windows 16 march 2014 updated manuals developers and faq webpages 28 november 2013 created github repository for the qucs website 03 july 2013 new implementation of matrix calculations using libeigen3 files are in branch local_complex_20130624 03 july 2013 added option for changing the home directory and other paths using qsettings qucs qucsrc is now obsolete 23 june 2013 released qucs 0 0 17 14 june 2013 added bsim 4 30 nmos and pmos models 20 may 2013 added bsim 3 34 nmos and pmos models 26 april 2013 added beginnings of m code transient solver interface previous news items what s qucs qucs stands for quite universal circuit simulator so far qucs is not yet finished but it is already packed with features take a look at the screenshots to get a feel for what it can do qucs is an integrated circuit simulator which means you are 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 view the simulation results on a presentation page or window qucs briefly for quite universal circuit simulator is a circuit simulator with graphical user interface gui the gui is based on qt by digia 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 the qucs gui is well advanced and allows setting up schematics and presenting simulation results in various types of diagrams dc ac s parameter noise and transient analysis is possible mathematical equations and use of a subcircuit hierarchy with parameterised subcircuits are available qucs can also import existing spice models for use in your simulations while qucs is well developed we still strive to improve the project and will always welcome offers of help qucs doesn t just need help with programming it also needs graphics high quality example schematics tutorials for the website and lots more qucs comes with an array of components and models third party models including hicum bsim2 bsim3 and bsim6 can be compiled and loaded into the simulator it also provides many semiconductor based components and models such as opamps diodes mosfets pmosfets and many more some example schematics can be found here which demonstrate some of the abilities of qucs and many more examples are provided with the program operating systems qucs is currently developed under the gnu linux os using the standard autotools with no special effort to support other operating systems however qucs is said to be successfully compiled and run on windows solaris netbsd freebsd macos cygwin help is needed license qucs is released under the gpl license and so it is free for free programmers and users reference qt is a registered trademark of digia visitors since 2005 04 27