A Full 3-D Parallel EM Simulation Software Package- GEMS

GEMS is a 3-D high performance parallel EM simulation package. GEMS combines

many cutting-edge techniques to realize the high performance that are suitable for solving general EM problem simulation such as electrically extremely large and complex problems such as antenna arrays, vehicle antenna, packaging problems, complex antennas, microwave circuits and devices, bioeletromagnetic problems, EMC and EMI problems. Compared to other software packages, GEMS has completely solved the technical bottlenecks in the numerical methods and memory limitation, and can be used to efficiently simulate large and complex problems.

144 Vivaldi Antenna Array	EMI	Microwave Filter
40 Helix Antenna Array	SAR and Communication	SAR
Antenna Radome	Magnetic Resonance Imaging	EMC
Finite Curved FSS	Rotman Lens	Vehicle Antenna
Aircraft
Parallel Efficiency
Simulation Time

Main Features:

Advanced Parallel Processing Techniques

• 3-D parallel processing technique

• Smart processer allocation technique

• Domain decomposition for extremely large problem pre-processing

Advanced FDTD Techniques

• PEC conformal technique

• Dielectric conformal technique

• Stable subgriding technique (combined with ADI to avoid time step reduction)

• Dispersive media (Debye, Lorentz, plasma and parametric input)

• Periodic structure simulation technique

• Plane wave excitation

• Time domain and frequency domain near-to-far field transformation technique

Robust Mesh Generation Techniques

• Non-uniform mesh generation module

• Conformal mesh generation module

Advanced Data Processing Module

• Mode extraction and output parameter calculation

• Output parameter calculation formula library

• Time domain signiture extrapolation technique

• EMF vector graphics export

• SAR output (distribution, average and maximum)

• Friendly data processing interface

Powerful 3-D Modeling Module

• Material library

• Assembly library

• Fast finite arbitrary array generation

• Support SAT, DXF, STEP, IGES, ProE and Triangular format mesh import and export

Multiplatform Technique

• Windows operating system

• Unix/Linux operating system

• Mac operating system