Nullspace Adds AI CAD Cleanup, Faster Runtimes to RF Simulation

Latest version of Nullspace EM provides up to 100x speedups, according to Nullspace, plus more design and simulation software news.

This is Engineering Paper, and here’s the latest news in design and simulation software.

Simulation developer Nullspace has launched the latest release of its electromagnetic simulation suite. The company says it will significantly speed up RF simulation times and simplify CAD cleanup with new AI tools.

Nullspace EM, a solver for RF product design, now offers Fast Adaptive Frequency Sweeps (FAFS), a feature that will automatically determine frequency sample points from a given range. Nullspace says that FAFS, along with the company’s proprietary matrix compression algorithm, can provide “100x simulation speed-ups for applications such as wideband antenna on-body analysis, phased array performance, and other real-world RF system applications.”

Nullspace Prep, the company’s CAD and meshing pre-processor, now uses AI to automatically clean up CAD files. It will remove features that slow down simulation without impacting RF performance, a process that otherwise requires tedious back-and-forth between mechanical designers and RF engineers, according to Nullspace.

Screenshot of Nullspace Prep, Nullspace’s CAD and meshing pre-processor.

Finally, the new release adds a Passive Circuit Loads feature to Nullspace EM that will allow engineers to add electrically small impedance loads to models. Nullspace says this will allow users to simulate a wider variety of large-scale phased arrays.

“Engineers can now analyze antenna terminations and tunable lumped circuit loads when designing advanced applications such as tunable leaky wave antennas and meta-surfaces,” Nullspace’s announcement reads. “This feature allows for rapid optimization of impedance matching and analysis of system-level performance to improve accuracy and speed.”