SIMULIA CST Studio Suite 2024 - What's New

Article by Jeff Lendermon on Feb 09, 2024

SIMULIA CST Studio Suite is an advanced electromagnetic simulation software that offers a user-friendly interface and integrated solvers for High Frequency, Statics and Low Frequency, EDA and Electronics, EMC / EMI, Particle Dynamics, and Multi-Physics Thermal / FEA. This article highlights all the new enhancements now available in CST Studio Suite 2024.


  1. General Features
  2. High-Performance Computing
  3. Python Automation
  4. Electromagnetic Solver Technology
  5. Low-Frequency Simulation
  6. Antenna and RF Component Design
  7. Electronics/PCB
  8. Electromagnetic Compatibility
  9. Cable Simulation
  10. Multi-Physics
  11. Bio-Electromagnetism

SIMULIA CST Studio Suite 2024 General Features

General Features

  • Support of 12th generation Intel CPUs.
  • Enhancement for licensing connections.
    • License options still include FlexLm, DSLS, and the ULM (Unified License model) using Managed DSLS.
  • Support for Linux 9.
  • 3D import/export for ASICS 2023.

    CST Studio Suite 2024 3D CAD Import/Export Enhancements

  • SOLIDWORKS import: Selective configuration import.

    Select Configuration to Load CST Studio Suite

  • PTC Creo and SIEMENS NX import: Option to update properties of imported materials from the material library.

    PTC Creo and SIEMENS NX Import new in CST Studio Suite 2024

High-Performance Computing (HPC)

  • Consider 0D/1D results only for MPI simulations to save data sent over the network.

    HIGH PERFORMANCE COMPUTING (HPC) CST Studio Suite 2024 Enhancements

  • Support for Low Frequency-Abacus Co-Simulation with cluster utilities scripts.
  • Support for the latest NVIDIA GPUs and AMD GPUs.
  • Improved memory distribution on multi-GPU simulations (TLM solver).

Python Automation

  • Subset of VBA functions for 3D/Schematic now available to Python Interface.
  • Extended EDA Python API for:
    • Definition of ports and materials
    • Creation and editing of PCB geometries (traces, polygons)

      Creation and editing of PCB geometries in CST Studio Suite 2024

Electromagnetic Technology

  • Time Domain Solver  CST Studio Suite Time Domain Solver Icon  Time Domain Solver Updates CST Studio Suite 2024 Enhancements
    • Sequential simulation of simultaneous excitations (T).
    • Consider cable energy in co-simulations without schematics (T, TLM).
    • Results can be accumulated over multiple solver launches for different excitations (TLM).
    • Re-discretization is no longer needed on subsequent solver launches (TLM).
    • Conductor breaks caused by the mesh being too coarse are now automatically fixed (TLM).
    • Energy to and from Spice and Touchstone circuits is now being tracked to improve model diagnostics for transient co-simulation (TLM).

  • Frequency Domain Solver  Frequency Domain Solver CST Studio Suite     
    • Performance improvement for the methods using tetrahedral mesh.
    • Thin panel robustness enhancements for the general-purpose solver with tetrahedral mesh.
    • Center edge of discrete face ports and lumped elements is not imprinted during mesh generation.
    • New options for storing solutions coefficients, disk space usage is reduced by default for new projects.
    • Enhanced farfield accuracy when monitoring fields on SIBC open boundaries, with improved radiated power consistency.
    • Improved direct solver accuracy control, single precision option in the solver special settings.

      Improved direct solver accuracy control, single precision option in the solver special settings for CST Studio Suite 2024

  • Asymptotic Solver  Asymptotic Solver CST Studio Suite
    • Improved accuracy of ray-based field calculation (GO).
    • Improved calculation of fields and results affected by edge diffraction.
    • Field probes now also support ray-based field calculation.
    • General adaptation to newest GPUs (improved ray pre-filtering).
    • Calculation of Signal-To-Interference-Noise Ratio.
    • Calculation and visualization of relevant quantities for 2D field monitor.
    • Improved visualization of rays from transmitter to receiver with selected field quantities.
    • Angle of arrival - Create Range-Angle Map for the Automotive workflow.

  • Integral Equation Solver  Integral Equation Solver CST Studio Suite
    • Solver order is now supported up to 5th order.
    • Calculation of solid-based near and farfields supported by MLFMM acceleration.
    • Added plots for mesh quality (1D, 3D), edge length (1D), and angle size (1D).
    • Added support of workflow for geometrical symmetry with non-symmetric excitation.
    • Enhanced nearfield source excitation is now the default.
    • New Type 3 diag preconditioner (replacement of old one) with Large Int, MPI, and GPU support.
    • Improvement of advanced adaptive preconditioning.

  • Eigenmode Solver  Eigenmode Solver CST Studio Suite
    • Thermal loss export for the General (Lossy) method.
    • Multilevel mesh refinement option to force stronger refinement in the first passes.

  • Hybrid Solver Task
    • New advanced uni-directional coupling option in the Hybrid Solver Task (supports field monitors in source domains and full S-parameters for all solver choices).
    • New option to create an equivalent full 3D setup from existing Hybrid Solver Task.

Low-Frequency Simulation

Low-Frequency Simulation Enhancements in SIMULIA CST Studio Suite 2024

  • Opera® Magnetostatic specific solver settings in CST Studio Suite
    • Biot-Savart conductors

      Biot-Savart Conductors CST Studio Suite

    • Parametrization and Optimization using CST Studio Suite

      Parametrization and Optimization using CST Studio Suite

    • Post-processing

      What's New Post-Processing CST Studio Suite 2024CST Studio Suite 2024 Post-processing Enhancements

      • Field monitors
      • 1D and 2D/3D Post-processing items
      • Post-processing templates

  • Litz Wire Modelling for Inductive Wireless Charging

    Litz Wire Modelling for Inductive Wireless Charging CST Studio Suite

    • Accurate Loss Prediction
      • Skin and Proximity effects in Litz wires lead to frequency/field dependent eddy current losses.
    • Key Assumptions
      • Round cross-section of wire
      • Twisting/bundling of the wire so that the same current can be assumed in each strand

        Wire Bundling CST Studio Suite

  • Mapping 2D Losses on 3D Thermal Analysis
    • Speed up Multiphysics workflow for electrical machines.

  • Extended permanent magnet database
    • Updated library of Permanent magnet material properties
      • Different magnet grades
      • Range of temperatures
      • BH and MH curves for Opera-2D and Opera-3D

  • Lumped Force Template for Multi-physics workflow
    • Machine Task post-processing calculation.
    • Generate double spectra data for force in time and space domain.
    • Export Data for time-domain mechanical analysis with Abaqus.  

      Lumped Force Template for Multi-physics Workflow CST Studio Suite

Antenna & RF Component Design

  • Sequentially Executed Excitation Lists
    • The T-Solver now allows the selection of multiple simultaneous excitations lists to be sequentially excited, allowing for better automation in the array workflows.
    • Appropriate for distributed computing.


  • Domain decomposition for antenna arrays
    • Main enhancements for the DDM solver
      • Scalability: The load will be balanced on available cores
      • MPI: Stability and scalability
      • Robustness: Very high success rate
    • Benchmark vs. 2023
      • Broadband results (3.3 –3.8 GHz)
      • 68 port excitations (high band elements)
      • Single machine: Dual Intel Gold 5220R CPU (48 cores)
      • 15% reduction in memory
      • 2.9 times overall speedup

  • Non-parametric optimizer enhancements
    • Great potential for antenna topologies.
    • After topology optimization, the mesh elements will consist of the original material or the material specified for filling. 

      After topology optimization CST Studio Suite

    • After shape optimization, the mesh nodes on the design space will be moved to form a new shape.

      After shape optimization CST Studio Suite

  • Filter Designer 3D 
    • Supports non-resonating nodes and has more design automation for various filter types. 

      CST Studio Suite 2024 Filter Design 3D  


  • EDA Import
    • Independent definition of PEC-sheet ports, pin-to-pin ports, and pin-to-conductor ports.

      EDA Import CST Studio Suite 2024 PCB Enhancements

    • Improved material definition.

      Improved material definition CST Studio Suite 2024 What's New

    • Multi-lumped element import with TS and SPICE can be imported into 3D directly. 

      Multi-Lumped Element Import CST Studio Suite 2024

    • LVS: A new feature called Layout Version Schematic tracking will be added. Checks for:
      • All pins of a net are connected
      • No pins of different nets are connected
      • If either of these conditions are violated, there will be an “x” in the LVS column after selecting Preview.

        CST Studio Suite 2024 Layout Version Schematic

  • PCB Simulation
    • Line Impedance Plot:
      • Users can plot the line impedance on the geometry to see any impedance problems that need to be addressed.

        Line Impedance Plot CST Studio Suite 2024

    • DDR4 ODT Sweep:
      • V2023 did not allow users to run ODT (on die termination) sweep in DDR4 Analysis. 
      • This function is already available in the SITD solver and will be added to the DDR4 Analysis in V2024.

        Model Selector Sweep Option CST Studio Suite

    • DDR4 Net Selection:
      • A new column will be added to provide a method for users to select which pins to simulate instead of being required to simulate all the pins.

        CST Studio Suite 2024 DDR4 Net Selection

    • Statistical 2D Eye Diagram in EAT:
      • Eye diagrams are generated in two ways:
        • Wrapping waveforms 
        • Direct from system response (i.e., step response)
      • V2023 eye analysis task (EAT) only supports the transient mode for eye diagram generation by wrapping waveforms. V2024 will support both methods, transient and IBIS-AMI tasks. Users can select step, pulse, or impulse for the system response.

        Eye Diagrom CST Studio Suite 2024 Updates

    • Python PCB Attributes:
      • A new Python API will be introduced for PCB geometries items. V2024 will include one for traces and shapes (TraceGI and ShapeGI). One for padstacks will be available in SP2. This feature could be used for creating or modifying a PCB or creating custom DRC rules.

        CST Studio Suite 2024 Python PCB Attributes

  • Virtual Component:
    • In the past, users were unable to create a voltage regulator for a DC-DC converter to use in an IR-Drop simulation. V2024 changes this. A virtual component will be defined and used for the voltage regulator.  

      CST Studio Suite 2024 Virtual Component

  • Sense Location:
    • Power supplies usually have a sense pin that supplies feedback about the voltage at a specific location on the PCB. If there are more than two power consumers, where should this sense pin be located? V2024 provides such an analysis. Users can run the sense line analysis with the IR-Drop solver to determine this location.

      IR Drop Special Settings CST Studio Suite

Electromagnetic Compatibility (EMC)

  • The EMC button has been added as a new starting point for EMC simulation workflows.

    CST Studio Suite EMC Workflow Button

  • New models are added to the component library.

    CST Studio Suite 2024 New Component Library Models

  • Improved sampling
    • New S-Parameter sampling scheme for the FD solver (lin-log).
    • No re-sampling of S-Parameters when used for Vector Fitting in DES.
    • Time gating + Hamming window on by default for periodic signals.
    • Field probes after combining results use sampling defined in DES
    • Automatic Sampling for Transient Task FFT.

      Improved Sampling CST Studio Suite 2024

  • New Signal Definitions
    • All time signal definitions for transient tasks have been reworked.
    • Improved usability of spread spectrum definition.

      CST Studio Suite 2024 Time Signal Spread Spectrum Clock Generation CST Studio Suite

Cable Simulation

  • Cable Simulation with Ports instead of Pins
    • Reduce the number of pins of the schematic block; no mixing of ports and CS pins.
    • Can run without a schematic setup. Cable port results and current monitor results directly in the 3D Navigation tree.
    • Cable and 3D ports can be used for a common S-Parameter simulation.
    • Combine results, MPI, DC.

      Cable Simulation Enhancements in CST Studio Suite 2024

  • Support For Coated Wires
    • For mechanical stability, wires are often coated.
    • The coating leads to a changed frequency-dependent conductivity of the wires.
    • Single material coating supported in CST Studio Suite 2024

      Single Material Coating CST Studio Suite 2024
      CST Studio Suite 2024 Single Material Coating

  • GUI Enhancements
    • Multi-editing allows changing the impedance value of several ports.
    • New port button clearly distinguishes between the creation of single-ended ports and differential ports.
    • Cable Junctions are needed to define the loadings on the cable endings.
      • Now, these junctions have a representation in the Navigation tree and in the 3D view. This makes it much easier for users to define the simulation setup.

        GUI Enhancements CST Studio Suite 2024

Multi-physics Simulation

  • 2D Planar Loss Import:
    • Losses generated from simulations utilizing a 2D planar mesh will be allowed in all thermal solvers. Motor thermal simulations will now be possible!

      CST Studio Suite 2024 2D Planar Loss Import

  • Dynamic Fan Speed:
      • When performing a transient CHT simulation, users can adjust fan speeds based on the temperature at a defined monitor point.

        CST Studio Suite 2024 Dynamic Fan Speed

  • Coupling to Abaqus with new macros
    • VBA Macros > Solver > Abaqus
      • Import temperature distribution from Abaqus for T-Solver
      • Transfer model to Abaqus

        Couplings to Abaqus CST Studio Suite

    • Coupling Solvers
      • LF Frequency Domain Solver
      • LF Time Domain Solver

    • Abaqus can import CST results using the External Field option.

      ABAQUS Import CST Results External Field


  • SIMULIA Humans development
    • Additional tissues
      • Background tissue as muscle-fat average
      • Pericardial details (fluid, visceral, parietal pleura)
      • Lung pleura/inner lung
    • Extended Posing Range – Arms up
  • Low-frequency human exposure compliance
    • Latest standards for E-field/current density averaging

      CST Studio Suite 2024 Bio Electromagnetism

  • 5Gmm Wave human exposure compliance
    • Accelerated post-processing evaluation (GPU, nearfields)
    • Support for tilt flip screen devices, slant evaluation planes

      Tilt Flip Screen Support CST Studio Suite 2024

  • HAC Postprocessing template
    • Extended to 2019 standard

      HAC Compatibility CST Studio Suite 2024

Dassault Systémes continues to enhance and provide new capabilities to the SIMULIA CST Studio Suite. If you have questions or want to see a deeper dive into any of these new enhancements, please contact us.


About Jeff Lendermon

Jeff Lendermon is an Applications Engineer for GoEngineer supporting the SOLIDWORKS Plastics simulation software. Jess has over 30 years of experience in the Plastic Injection molding industry, he applies his experience and knowledge of the industry to help customers see the benefits of utilizing the tools within SOLIDWORKS Plastics.

View all posts by Jeff Lendermon