CST Studio Suite – What’s New

What’s new in CST


  • LINUX support for all interactive workflows
  • New project preview mode, which includes archiving of projects
  • Added filtering option to the navigation tree
  • New search option to find commands, information and examples
  • New Python module for general project management
  • Enhanced general and cylindrical bend feature
  • System Simulator: Import of Functional Mockup Units for Model Exchange according to FMI standard
  • HPC: MPI job scheduler native shell support
  • HPC: Improved GPU support: Added selected AMD GPUs (T), NVIDIA RTX series and NVIDIA NVLink

System Assembly and Modeling:

  • Extended modification options of existing simulation projects
  • Improved support of lumped elements for 3D simulation projects
  • One-click conversion of 3D projects to assembly projects


  • Mesh Import: Recovery tool for intersecting triangles
  • NVH Mesh Import with connections for surface mesh (I)
  • Improved robustness of mesh moving for optimizations and sweeps
  • Post Processing New Python module ‘cst.results’ to access 0D/1D results from file
  • New easy to use ‘Result2D’ VBA object
  • Improved ray histogram post-processing
  • Interactive plot measurement mode for Cartesian 1D plot
  • Interactive farfield plots in orthographic projection
  • Faster farfield combination that avoids nearfield data processing (T, F)
  • New Report tool to collect screenshots and create report documents
  • Enhanced 2D colormap plot supports contour lines, banding and auto tick
  • Customizable plot units in 2D/3D plots

High Frequency Simulation:

  • Added circularly distributed discrete face ports (F)
  • Encryption of CST models for securely sharing data (IP protection): FD and TLM solver added
  • New Partial RLC solver for calculation of circuit parameters (partial resistances, inductances, and capacitances) with optional SPICE export
  • Allow surface impedance material at waveguide ports (T)
  • Performance improvements for open boundary simulations (T)
  • Added multi-pin lumped element SPICE and Touchstone circuits (T, TLM)
  • Added connectivity tree and mesh feedback for discretization and intersection problems (TLM)
  • Improved handling of composite skins on aircraft frames (TLM)
  • Combine results for fast reduced order model frequency domain solver with tetrahedral mesh (F)
  • Modal weighting coefficients available after Characteristic Mode Analysis (I, M)
  • Performance enhancement for monostatic RCS sweep (I)
  • General performance improvements and support for larger simulation setups for MLFMM (I)
  • Field of view analysis (A)
  • Improved accuracy for near- and farfield source excitations (A)
  • Hybrid solver task (SAM task)
    • Support simultaneous excitations defined in local domains
    • Reference impedance for S-parameters and Touchstone export added
    • Support all ports excitation selection

Low Frequency Simulation

  • Performance improvement for time domain solvers (LT)
  • Authoring of CAD coil segments from CAD geometries (LT, JS, LF FD (broadband only))
  • 3D translational motion (LT)
  • Introduction of Machine Simulation Sequence for multiple drive scenario simulation in SAM
  • Authoring of Reduced Order Models as Functional Mockup Units according to FMI standard (LF FD and SAM Machine Simulation Sequence)
  • Induction Machine drive scenario (SAM Machine Simulation Sequence)
  • Performance improvements for evaluating machine drive scenarios (SAM Machine Simulation Sequence)
  • Using iron loss data sheets for calculating iron losses (frontend)
  • Temperature dependent permanent magnet recoil model (LT)

Particle Volume Simulation

  • Particle volume source for modeling initial plasma distributions
  • Ion-induced secondary electron emission
  • Added support for periodic boundary conditions in the E-Static PIC solver
  • Time dependent field excitation for E-Static PIC solver

Antenna Magus

  • Multiple Elements per Array
  • Element Pattern from Collection
  • Calculate NFS for default designs and for previously estimated designs while NFS setting was disabled.
  • Value Comparison in Compare Window
  • Exclude selected variables from Macro Export.
  • 3 new Antennas


  • In Corona configuration, pressure sweep points may be distributed in a linear or logarithmic scale
  • Added new Corona simulation type: at a fixed power, a pressure sweep may be analyzed in order to know if there is breakdown or not


  • Expose independent parameters to CST Design Studio
  • Added coaxial/dielectric-loaded cavity libraries based on CST Frequency Domain Solver.Rectangular and cylindrical cavities are allowed
  • Visualize the mesh used by 3D subcomponents based on BI-RME3D and CST Frequency Domain Solver
  • Use Fest3D projects as blocks in CST Design Studio

Cable Simulation

  • Support for CST Cable Studio projects in simulation projects
  • Improvements of connection to 3D manager
  • Improvements of automatic bundling and twisted cable simulation
  • Increase of simulation accuracy concerning loss and screen modeling, incl. Spice export
  • Improvements of the user interface: e.g. interactive cross-section editing

Circuit Simulation

  • All task properties are available through task parameter list and many other schematic editor improvements
  • New parameterized array block to define multiple, identical sub circuits
  • New FEST3D project block
  • IBIS-AMI task: Support of transient AMI simulation
  • Encryption/decryption for SPICE circuit files
  • Interface to LTSPICE simulator


  • Full support for macromodeling of Mixed-Mode parameters
  • New functionality for performing sensitivity analyses on a dataset
  • Enhancement of the passivity solver through a more efficient characterization of the passivity violations
  • Major improvement in the convergence of the passivity enforcement solver through a more robust optimizer
  • Performance improvements for terminate ports functionality

Filter Designer

  • Automatic 3D filter design and model creation

EDA Import and PCB Simulation

  • Support for bending and multiple-stackup information in Cadence-Allegro import
  • Automatic import of heat sources from PCBS IR-drop results into CST MPhysics Studio
  • Improved performance of opening PCB designs in 3D
  • New package component model (EBD)
  • New impedance calculator for pre-layout analysis
  • Improvements in IR-Drop simulation: Consider filled vias
  • Increase of simulation accuracy for SI/2DTL, e.g. Ohmic loss modeling and legacy via model, incl. SPICE export
  • Improvements of the user interface: e.g. view attributes manager and color mode for 2D/3D results

Board Check

  • Classify rules by analysis types (EMC, SI, PI)
  • New rule ‘Power Net Overlapping’
  • Improved rules that are checking cross-talk

Chip Interface

  • Automatic port creation at pin locations
  • Project history display and editing
  • Retain pin/net information when exporting through Cadence Virtuoso plugin
  • Single-file setup for GDS-based workflow triggered from Cadence Virtuoso plugin

Thermal Simulation

  • CHT Solver
    • New CFD mesh type enabling the use of non-uniform background meshes and the optimal positioning of meshing gridlines at solid interfaces
    • Improved reporting of setup errors including self-intersecting surfaces
    • Faster and more accurate import of surface losses from EM simulations
    • Support for surface emissivity and contact properties in the two resistor thermal compact model
  • Two-resistor thermal compact model creation macro for classic thermal solvers (THt, THs)
  • Updated heat transfer coefficient calculation macro to compute surface temperature for given power dissipation (THt, THs)