potatobeanradio / circuitRF

Full featured, cross-platform RF circuit + electromagnetic simulator. DC, S-parameters, harmonic balance, loadpull, envelope. Also supports 2D and 3D layout and design and electromagnetic MoM, FEM, FDTD + thermal FEM.

NanoComp / meep

free finite-difference time-domain (FDTD) software for electromagnetic simulations

gprMax / gprMax

gprMax is open source software that simulates electromagnetic wave propagation using the Finite-Difference Time-Domain Finite-Difference (FDTD) code for numerical modelling of Ground Penetrating Radar (GPR), antennas, radar and bioelectromagnetics

thliebig / openEMS-Project

openEMS is a free and open electromagnetic field solver using the FDTD method.

thliebig / openEMS

openEMS is a free and open-source electromagnetic field solver using the EC-FDTD method.

ismailakdag / fairbeam

Fairbeam: the open electromagnetic workbench. Design, simulate and document antennas with openEMS.