At a Glance

EMPIRE XPU– developed by engineering excellence – is one of the leading 3D electromagnetic field simulators. It is based on the powerful Finite Difference Time Domain method (FDTD), which has become an industrial standard for RF and microwave component and antenna design. Due to EMPIRE XPU’s unique adaptive on-the-fly code generation it exhibits the fastest simulation engine known today. With this highly accelerated kernel full-wave EM-simulation problems can now be solved in minutes which used to take days some years ago.

For structure definition, a powerful Graphical User Interface is included in the EMPIRE XPU package and several structure import and export formats are supported. EMPIRE XPU’s applicability ranges from analyzing planar, multi-layered and conformal circuits, components and antennas to multi-pin packages, waveguides, and SI/EMC problems including the device’s operational environment. Time signals, scattering parameters, and field animations are generated accurately for a broad frequency range within only one simulation run. Monitoring and animation capabilities give physical insight into electromagnetic wave phenomena while accurate results are obtained with little effort.

Application Examples

Application examples that the IMST engineers designed with the EMPIRE XPU software are shown in the figures. More examples are available in the application part of the web page.



To meet your specific requirements, the simulator can be customized. Basic models, tools to simplify the data input or automatic post processing can be supplied by IMST.

Consulting & Support

Customers of the EMPIRE XPU software are supported by a group of experienced and competent software developers and application engineers. They are backed up by more than 30 design engineers working with this tool on design projects at IMST. Strong and experienced local support teams are thoroughly trained by IMST engineers in order to supply high qualified first level customer support with fast reaction time.


Due to growing fields of applications and latest developments in research the simulator will be extended, improved, and upgraded. Updates will be free of charge for customers entering into a maintenance agreement. Manual updates, release announcements, application examples and more can be found on our web sites.


EMPIRE XPU is distributed worldwide by means of a network of representatives. For a quotation just contact your local sales representative or mail to empire(at)imst.com. Special discounts are available for multiple licenses, for research labs and universities.