# IdEM

Electronic Device Characterization

## (SIMULIA IdEM - Rich Text) What is IdEM?

IdEM is a user-friendly tool for the generation of macromodels of linear lumped multi-port structures (via fields, connectors, packages, discontinuities,…), known from their input-output port responses. The raw characterization of the structure can come from measurement or simulation. A suite of advanced and well-conditioned rational fitting modules grants applicability to virtually any kind of characterization. IdEM casts the resulting models in standard SPICE formats for system-level simulations in your design flow. Thus, IdEM enables SPICE model extraction and processing for any kind of linear structure, component, interconnect, package, whatever your native characterization and application area.

## (SIMULIA IdEM Tab 1 Panel)Why IdEM?

## (SIMULIA IdEM Tab 1)Why IdEM?

IdEM uses best-in-class algorithms to build macromodels, including:

- Proprietary data causality certification module based on the Hilbert transform
- Highly scalable rational fitting modules enabling unlimited port counts
- Top-class passivity enforcement schemes for safe and stable transient simulations.

Thanks to the multiprocessing module, IdEM enables efficient macromodeling of ever-larger structures.

[IdEM](/media/25603)

## (SIMULIA Idem Tab 2 Panel)About IdEM

## (SIMULIA IdEM Tab 2)About IdEM

**Fully developed GUI** - all algorithms of IdEM are linked to an intuitive Graphical User Interface.
**Easy-to-use** – needs little expert knowledge for using most algorithms with standard settings.
**Flexible and powerful** - a rich set of control parameters is available for advanced users.
**Accurate and efficient** - IdEM uses state-of-the-art fitting algorithms for rational approximations with guaranteed passivity.
**Unlimited ports** – adopt splitting strategies for handling large port counts without excessive memory requirements.
**Data import** - import filters are available for Touchstone and other common data formats.
**Model export** – IdEM can synthesize models as equivalent circuits into common SPICE formats.

## (SIMULIA Idem Tab 3 Panel)Best-in-Class Features

## (SIMULIA IdEM Tab 3)Best-in-Class Features

**Causality** - a proprietary causality check module enables the detection of possible measurement/simulation errors that compromise the physical consistency of the raw data.
**Passivity** - top-class algorithms are available for model passivity enforcement, ensuring safe use of models in system-level EMC/SI/PI simulations.
**Multiprocessing** - an advanced module enables multi-thread capabilities, with an extraordinary speed-up in simulation time and guaranteeing an efficient macromodeling of ever-larger structures.

## FAQ's on IDEM

## What integration is there between IdEM and CST Studio Suite?

IdEM Studio brings the IdEM functionalities into a new User Experience. It has been specially designed with an intuitive user interface embedded and integrated into the CST Design Environment which provides the user with a common Graphical User Interface for all software included in the CST Studio Suite. Focused on productivity, IdEM Studio enables a simple and intuitive management of the macromodeling workflow by also offering access to a wide range of advanced modeling features.

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