FDTD Simulator for 3D EM Modeling of Antennas, Microwave components, SAR, RCS & EMI/EMC Analysis

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.

INTUITIVE 3D DESIGN                                                          SUPER FAST (XPU FDTD, JIT)                                                  MEMORY EFFICIENT

Intuitive 3D/2D Design Interface

Near Field & Far Field Visualization

Parameter Sweep

Especially Suited for Multi-Layered RF Components and for Antennas on LTCC



Simulation speed and size using EMPIRE XPU

on standard PCs




FDTD on dual Xeon PC with one Nvidia Tesla K80 GPU card



* XPU technology which is a smart implementation of the Finite Difference Time Domain (FDTD) algorithm on modern CPU architectures. It can drastically reduce simulation times while (in contrast to GPU solutions) maintaining full access to the available main memory.


Ka-Band / 5G DBF frontend module



Simulation time: < 2 h

Memory usage: 16 GB

Size: 600 Mcells

Dual Xeon workstation

ADS-B Satellite antenna



Simulation time: 6 min

Memory usage: 2 GB

Size: 44 Mcells

Quad Xeon workstation


The design of microwave components often requires precise knowledge of the electromagnetic field. Due to increasing computer power, numerical methods have been developed which predict the behavior of electromagnetic waves.

The EMPIRE XPU simulator covers many different tasks in microwave engineering and can be used very effectively. The numerical method applied is based on the Finite Difference Time Domain (FDTD), which method is known to be superior to others, especially for 3D large scale problems (least memory requirements, one simulation for an entire frequency range).

EMPIRE XPU is very accurate and simplification is hardly necessary since it solves the discrete Maxwell's equations directly. The EMPIRE XPU graphical user interface is powerful for the easy set-up of the structure and the control unit guides the user through batch- and post-processing.

Evaluation License Request form for EMPIRE XPU:

Note: Please fill out the fields marked with an asterisk.


MultiLib™ is the new state-of-the-art model library, which includes all standard elements for analog high-frequency multi-layered circuit designs. As an add-on to Agilent's ADS™, MultiLib™ is very easy to use for the simulation, design, and layout of multi-layered RF circuits.

Evaluation License Request form for MULTILIB:

Note: Please fill out the fields marked with an asterisk.

Wireless Solutions

We offer easy-to-integrate radio modules for licence-free frequency bands 169/433/868 MHz and 2.4 GHz as well as comprehensive design services. From system specification to implementation of hard- and software and even CE approval and production, "Wireless Solutions" is your One Stop Shop for wireless.

Contact form for Price Quote - Wireless Solutions:

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