INNOVATIVE SOLUTIONS FOR ADVANCED ELECTROMAGNETICS SIMULATIONS

The challenges

The electromagnetic questions a platform has to answer before it is certified: what it emits, what it withstands and what it reflects. Each is answered with the items of Our Solution below.

Radiated emissions

Radiated emissions are predicted by computing the fields that cables, equipment and structures radiate, anywhere around a whole platform.

The Cable Solver carries the currents of each harness into the 3D simulation, and multilayer surface impedances set how much of that radiation escapes through composite or coated skins.

Installed emission levels can be compared with their limits before a prototype exists, together with the cable or opening responsible.

Our Solution

Electromagnetic-compatibility simulation built on open-source FDTD and DGTD solvers, multilayer surface impedances, multiconductor cables and conformal modelling. Elemwave builds on the open-source FDTD engine opensemba/fdtd, and is designed for researchers who require accurate, scalable, and computationally efficient electromagnetic simulations. Elemwave is committed to transparency: its methods are open source and validated through peer review by the scientific community.

Multilayer surface impedances

Thin surfaces made of several layers — carbon-fibre skins, metallised coatings, paint over metal — each with its own thickness and electrical properties, are represented as a surface impedance rather than meshed through their thickness.

The grid stays as coarse as the geometry allows, while the layered material still decides how much field passes through the surface.

This serves shielding effectiveness studies of composite and coated panels, lightning and high-intensity radiated field coupling through aircraft and vehicle skins, and radiated immunity assessments of whole platforms.

Peer-reviewed by the scientific community: A Hybrid Crank–Nicolson FDTD Subgridding Boundary Condition for Lossy Thin-Layer Modeling (IEEE Transactions on Microwave Theory and Techniques, 2017) and A HIE S-FDTD Method to Account for Geometrical and Material Uncertainties in Lossy Thin Panels (IEEE Transactions on Antennas and Propagation, 2024).

Peer-Reviewed Publications

Developed and validated through academic publications and joint projects with universities, research centers, and industrial partners. Our work contributes to the advancement of computational electromagnetics through published research and collaborations with leading engineering organizations.