Full-wave 3D electromagnetic simulation, from a single element to the fully installed platform.
Rigorous Method of Moments formulation. Proprietary adaptive compression that scales with your hardware instead of hitting a memory wall. No asymptotic approximations, always full-wave analysis.
Nullspace EM is a full-wave 3D simulation software built for electrically large RF simulations.
Built for the class of problems where well-established legacy tools run out of memory, force engineers to break models into simplified pieces, or fail to converge at all. Nullspace EM uses the same formulation across the entire design hierarchy, so a component, a large array, or antenna installed on a vehicle are all solved without asymptotic approximations.
The applications Nullspace EM was built for
Antenna Design & Analysis
Complex, multi-band antennas
Antenna placement and co-site analysis
Phased Arrays with complex structures
Waveguide, transmission line, and filter design
Multi-layered radomes
Beam Steering analysis
Reflector design
GRIN lenses
Leaky wave antennas
Optimization & Uncertainty Analysis
Design optimization
Generative design
Parametric analysis
Uncertainty analysis
Data generation for AI training
Radar Cross Section Design & Analysis
Monostatic and bistatic analysis
Electrically large scatterers (e.g. aircraft, ships, ground vehicles)
Scattering from objects with PEC, magnetics, and/or dielectric coatings
Design and analysis of frequency selective surfaces (FSS)
Analysis of scattering from resonant cavities
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Set up simulations in plain English
Describe the analysis you want and the AI agent builds the model, runs it, and post-processes the results via the Python API. You review and adjust instead of clicking through menus.
Capture your team’s expertise
Encode how your experts configure and evaluate problems in Python. Colleagues, pipelines, and AI agents run it the same way every time.
Cover the full design space, not just a few points
Parametric sweeps, optimizations, and uncertainty analyses run as ordinary scripts, becoming standard steps in your workflow instead of one-off efforts per program.
Built for Large Problems: Scaling a Phased Array
The same 15.5 GHz phased array was run on Nullspace EM and on a well-known legacy tool, scaled from a single element up to a 32×32 array of 1,024 elements. The legacy tool stopped completing runs above 8×8.
Nullspace EM completed every case in the benchmark.
Key takeaways:
CST exhausted memory above 8×8 and failed to complete the 16×16 and 32×32 cases on every machine tested, including a 256 GB workstation.
Nullspace EM completed the full series, finishing the 1,024-element array in 5.7 hours at 170 GB, within reach of a single workstation.
At every size where both tools finished, Nullspace was 3–23× faster and used roughly an order of magnitude less memory.
"We attempted to model a full phased array with our existing software solution. It was estimated to take over 30 days to complete. We couldn't tolerate a hit to our schedule like that. With Nullspace, we completed the full analysis in less than 1 day."
— Senior RF Engineer, Defense Contractor
“Using Nullspace EM, our model-to-measurement agreement was so good that we were able to make significant modifications to the design without the need to do any prototyping.”
— Branch Head, U.S. Defense Research Lab
"A test model ran in 6 hours on Nullspace EM. The same problem, same mesh, took 16.5 hours on a competing commercial tool."
— Senior Engineer, Federal U.S. Laboratory
How much are you leaving on the table?
The studies you skip, the designs you simplify, the deadlines you stretch. What if you didn't have to?