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.
The software aims to support all kinds of circuit simulation types,
e.g. DC, AC, S-parameter, harmonic balance analysis, noise analysis,
QucsTranscalc is the transmission line tool used by Qucs. The
application was somewhat inspired by transcalc by Claudio
Girardi and Gopal Narayanan. It is based on transcalcs latest CVS
version with some minor fixes incorporated. The GUI has been ported
from the GIMP toolkit (GTK) to Qt.
It is an analysis and synthesis tool for calculating the electrical
and physical properties of different kinds of RF and microwave
For each type of transmission line, using dialog boxes, the user can
enter values for the various parameters, and either calculate its
electrical properties, or use the given electrical requirements to
synthesize physical parameters of the required transmission line.
Available transmission lines are: Microstrip, Rectangular Waveguide,
Coaxial Line, Coplanar and Coupled Microstrips.