The free CST Studio alternative for WPT.
CST Studio Suite (formerly CST Microwave Studio, now part of Dassault Systèmes) is a full-wave 3D EM workhorse — and overkill for early-stage inductive WPT coil exploration. AirInduct Sim covers the magnetostatic WPT regime that drives most CST coil-design projects, runs in your browser, and starts at $0.
- No Dassault per-seat license, no token-pool waiting room.
- No transient or frequency-domain mesh setup before the first inductance.
- Eight WPT topology presets out of the box (Helmholtz, DTC, square, cross).
- Runs on a Chromebook, an iPad, a phone — anywhere a browser runs.
- Public REST API and MCP server for AI agents — no VBA / Python wrapper licence.
Full-wave radiation, antenna design, EMC certification, multi-physics co-simulation. AirInduct will get you to a candidate coil in seconds; CST is where the radiated-emissions and certification lap belongs.
Build and sweep your coil in AirInduct, export geometry and parameter sets, then drop them into CST Studio Suite for the final full-wave / EMC pass. The two are complementary, not redundant.
See the full comparison matrix or try the Helmholtz simulator.