LINMIC provides full design functionality for hybrid and monolithic microwave integrated circuits (MICs/MMICs) and with recent coaxial additions. Since many of its key portions are based on rigorous full-wave electromagnetic theory, LINMIC can handle complex configurations with multidielectric layers, multiple coupled conductors, irregular conductor shapes, coupled discontinuities for both, strip type and also some CPW type structures.

LINMIC combines a large layout-oriented library of MIC/MMIC elements using a wide range of specialized, mostly EM field-theory based models. The models are complemented by first principle 2.0D and 2.5D EM simulation, active device modeling, parameter extraction, harmonic balance, layout generation, etc., all in one design suite and with interactive speed.
Key Features:

* Linear and nonlinear simulation engine
o Network-theory based simulation of linear and nonlinear circuits using mostly EM-based library elements with interactive speed, from RF PCBs to MICs/MMICs beyond 100 GHz
o True layout-orientation from the beginning
o EM-based (M)MIC libraries with high element complexity, e. g. Lange couplers
o F20 and H40 foundry libraries, EM-based coax element library
o State-of-the-art nonlinear simulation with various FET models, BJT and diode models, available for amplifier, mixer and oscillator analysis. Multitone AC sources and modulated sources for circuit excitation.
o Import of results from 2D, 2.5D and 3D planar EM tools outlined below
o Import of widely available SPICE diode, BJT, FET models and passive Spice netlists
o Computation of DC, small-signal AC, small-signal noise, small-signal TD and large-signal AC (harmonic balance) electrical output, very efficient multi-device HB analysis
o Fully-fledged circuit optimization
* 2D quasi-TEM + full-wave simulators
o Simulation of strip-type transmission lines (microstrip, CPW, multilayer, …) with interactive speed
o Up to 40 coupled strips in up to 19 metallisation layers and 20 dielectric layers
o Computation of effective permittivity, transported power, conductor loss, dielectric loss
o Computation of per-unit-length capacitance, inductance, resistance, conductance
o Generation of data bank files for use in circuit simulation
o Generation of SPICE equivalent circuits for finite length multiconductor sections
o Graphical output of modal data including frequency dispersion effects, S-parameter computation for finite length sections and computation of time-domain data
o Simulation of geometrically complex passive structures (inductors,
* 2.5D multilayer PEEC simulation
o Simulation of geometrically complex passive structures (inductors, baluns, …) with interactive speed
o Predefined, fully parameterized multilayer element macros for fast and intuitive circuit design (LTCC etc.)
o Up to 19 metallisation layers and 20 dielectric layers
o Computation of S, Y, Z-parameters and of time domain electrical data
o Generation of SPICE equivalent circuit netlists
o Optimization as a function of the geometrical circuit parameters
* 3D planar (MoM) full-wave simulation
o Simulation of arbitrarily shaped mostly planar structures including vias
o Library of pre-meshed layout shapes (irregular grid) for convenient structure setup
o Direct and iterative matrix solvers
o Spectral Operator Expansion and Diakoptic technology for reduction of computation time
o Multiple coupled ports and internal ports (for element import)
o Computation of S, Y, Z-parameters and of time domain electrical data
o Visualisation of current density distribution
* Active device modelling
o Extraction of large-signal equivalent circuit parameters for diode, BJT/HBT and various FET/HEMT models
o Extraction of distributed model for FETs/HEMTs (EM-based, fully layout-oriented)
o Extraction based on few bias points (sparse-bias) or on multibias RFOW data
o Visualisation of bias-dependency of intrinsic device parameters (generation of table models)
o Powerful hybrid optimization procedure for parameter extraction
o Generation of data bank files for use in circuit simulation
* Layout-oriented GUI, results and data export
o Intuitive, versatile editing functions, layout-oriented, WYSIWYG from the start
o 3D layout visualisation especially for multilayer components
o Flexible merging of different simulation results into graphical output
o Interactive assistant for the easy design of coupled multilayer strip structures
o Improved functionality for EM lookup data generation, simulation data, layout backannotation, project handling etc.
o Online help, easy access to internet resources
o Versatile results output, also in tabular form. Display of arithmetic expressions, such as phase differences, etc.
o Export of layout in GDSII, IE3D and further layout formats