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Tool Provides Microwave and Scattering Analysis for Antenna Designers

July 10, 2023
Nullspace EM can significantly reduce simulation time using multiple GPUs.

Like any electronic system these days, designing antennas and radio-frequency (RF) devices entails a major simulation effort to get a system correct before it's actually built. Simulation tools are also used to analyze and modify designs. Systems can become very complex with multimode operation and arrays with multiple antennas.

Nullspace EM, an electromagnetic (EM) simulation software toolset from Nullspace, targets engineering teams designing RF devices in the aerospace, defense, communications, and automotive fields . EM simulation is also important for antenna design and analysis in applications like near-field communications (NFC) for mobile payments as well as narrow-, wide-, and multi-band antennas, reflectors, phased arrays, and radomes with FSS modeling. In addition, it can perform co-site interference simulation, in situ antenna pattern prediction, and antenna placement.

Nullspace EM is designed to handle proprietary compression algorithms plus high-order geometry and physics. It can utilize proprietary fast linear algebra libraries as well as multi-CPU and multi-GPU environments to accelerate simulation times. This includes direct support for NVIDIA’s Pascal, Volta, and Ampere GPU architectures. The latest version has improved 3D visualization of antenna patterns and radar cross section. The tools also make it easier to create large, phased-array antenna systems with multiple feed ports.

About the Author

William G. Wong | Senior Content Director

I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.>

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I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.  

I still get a hand on software and electronic hardware. Some of this can be found on our Kit Close-Up video series. You can also see me on many of our TechXchange Talk videos. I am interested in a range of projects from robotics to artificial intelligence. 

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