3D Full-Wave Electromagnetic Simulator

What’s ZWCAD?

ZWCAD is a fast and powerful 2D CAD solution that offers unparalleled compatibility with AutoCAD®3. It empowers architects, engineers, and designers
in the AEC and manufacturing industries to effortlessly bring their creative visions to life.
EIT - Embedded Integral Technique
Developed on the FDTD (Finite-Different Time-Domain) algorithm, EIT is a cutting-edge technology with high precision, high efficiency, and low memory footprint
FEM - Finite Element Method
FEM is a frequency domain finite element algorithm based on tetrahedral meshes. With the capability to simulate high-precision geometries, it is suitable for the simulation of complex models and fine structures, and the calculation results are stable and reliable

Easy to Use

ZWSim-EM is easy-to-use with a friendly user interface and clear workflow. The user interface can be customized by dragging different areas, and users can set the entire simulation process from top to bottom in Navigation Tree, or from left to right in Ribbon Menu.

Fully Compatible with Native CAD Models

Based on the powerful translator of ZW3D, ZWSim-EM is compatible with files of mainstream 3D CAD software or intermediate formats. Importing and exporting various files are so convenient without third-party add-ons.

Powerful 3D Modeling and Modifying

Sharing the self-developed 3D geometric modeling kernel of ZW3D, ZWSim-EM guarantees you robust direct modeling, surface modeling, and hybrid modeling capabilities. The Direct Edit feature also allows you to modify third-party models rapidly.

More Features



  • Antennas/Antenna Arrays
  • Radar
  • Microwave Devices
  • Signal Integrity Analysis
  • Propagation of Electromagnetic Waves
  • Broadband Electromagnetic Issues of Complex Structures