• Which Products are you interested in ?

    CST offers a wide range of EM simulation software to address design challenges across the electromagnetic spectrum, from static and low frequency to microwave and RF, for a range of applications, including EDA & electronics, EMC & EMI and charged particle dynamics.

  • CST STUDIO SUITE
  • CST EMC STUDIO
  • CST BOARDCHECK
  • Antenna Magus
  • IdEM
  • FEST3D
  • Optenni Lab
  • Looking for a Training, Workshop or eSeminar ?

    CST STUDIO SUITE® is being demonstrated at trade shows and workshops all over the world. Take a look at the list of conferences and exhibitions CST will be attending and get further information regarding CST workshops, eSeminars and training days.

  • TrainingsRegular training courses are held in CST's offices in Asia, Europe, and North America. Please check our trainings section for detail of trainings in all over the globe. Advance registration is normally required.

  • WorkshopsCST hosts workshops in multiple languages and in countries around the world. Workshops provide an opportunity to learn about specific applications and refresh your skills with experienced CST support staff. Make sure you visit our workshop section.

  • eSeminarsThroughout the year, CST simulation experts present eSeminars on the applications, features and usage of our software. You can also view past eSeminars by searching our archive and filtering for the markets or industries that interest you most.

  • Check our latest Events
  • Why create a MyCST Account ?

    A MyCST account may facilitate your access to many of the offerings on the CST website, for example the registration for eSeminars and the watching of eSeminars recordings, setting email preferences, and there is more functionality to come. It is required to participate in workshops and trainings.

  • Personal PreferencesAllows you to update your email preferences and areas of interest. It helps us to personalize your experience.

  • EventsSearch for events by location, industry and application. Once you are registered, you will be able to manage your registrations and check important details about your events. This section also provides you with a repository for Workshop & Training material.

  • LibraryYou can collect articles you find on the CST website to reference or read later by clicking on the “Add this article” button at the bottom of the article page.

  • Create Your Own Account
  • Need technical Support ?

    Customers can customize their accounts once they have completed the account creation process. This platform acts as vivid interface between CST and our customers.

    We therefore offer access to the latest Service Packs (including an automatic notification that a new Service Pack is available), a steadily growing database of Frequently Asked Questions (FAQs), Application Notes and Training Videos, as well as an individual FTP section for easy exchange of large files with our support team.

  • Do I need an Account?To access the Support Site a valid maintenance contract and a one-time registration is required.

    Please note that your Support login does not work for the MyCST account.

  • Get Support
  • How to request a Trial License ?

    Get your license in only three steps:

    1. Fill in the required fields in the contact form on the right and click "Send Us Your Request".

    2. Lean back and wait until one of our CST Experts contacts you.

    3. Enjoy a our trial license.

  • Student Edition

    Student Edition The CST STUDIO SUITE® Student Edition has been developed with the aim of introducing you to the world of electromagnetic simulation, making Maxwell’s equations easier to understand than ever. With this edition you have, bar some restrictions, access to our powerful visualization engine and some of the most advanced solvers of CST STUDIO SUITE.

    Student Edition

CST – Computer Simulation Technology

Simulation Tasks

CST DESIGN STUDIO (CST DS) provides several types of Simulation Task. These tasks can be parameterized, enabled, disabled and re-ordered.

The following simulation tasks are available:

  • The S-Parameters Task is used to calculate the S-Parameter matrix of the system in order to design and optimize the matching network for RF systems, for filter synthesis and antenna array simulations.
  • The AC Task generates voltage and current curves as a function of the frequency for the ports and probes within the model. The AC Task can be linked using the Combine Results postprocessing step. This feature offers the possibility to calculating 3D fields for the excitations and circuits created in CST DS and for monitors defined in CST MICROWAVE STUDIO® (CST MWS) Blocks. This feature is applied to both Farfields and Nearfield monitors.
  • The Operating Point (DC) Task is extremely useful for the characterization of linear and non-linear devices to predict the DC operation point on the characteristic I-V curve.
  • The Transient Task allows you to analyze the non-steady state behavior of a circuit or system. Since most of the blocks available are described by frequency domain data, equivalent circuits are automatically created during the execution of a transient simulation task. These equivalent circuits are generated by a model order reduction scheme including passivity enforcement. Using a pseudo-random bit sequence, the transient analysis produces an eye diagram for desired voltage and current probes.
  • The Transient Task can also run as a transient co-simulation, a unique feature which enables a coupled 3D Field EM/Circuit simulation (with CST MWS) including linear and non-linear lumped components and circuit networks in a 3D full-wave simulation.
  • The Spectral Line Task performs a harmonic balance (HB) analysis, which solves for the steady state of a dynamic system and yields the Fourier coefficients of sinusoidal functions for given frequencies.
  • The Mixer Task provides the tools needed to analyze the behavior of mixers. A mixer provides a local oscillator (frequency fLO) either to convert an input signal at an intermediate frequency (fIF) to an output signal at a higher radio frequency (fRF) or vice-versa, depending if the mixer is either up-converting or down-converting.
  • The Amplifier Task calculates the properties and figures needed to characterize amplifiers. Therefore, linear simulations may be performed as well as nonlinear simulations depending on the results you want to obtain like S-Parameters, group delay, linear gain, stability factors, distortion, onput/output spectra, power and gain.

Further tasks are available for controlling simulation processes. With these, simulation tasks can be arranged into sequences, and parameter sweeps, optimization and post-processing can be carried out automatically. By combining these with the generalized Simulation Blocks, arbitrary solver types can be controlled from CST DS.

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