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Ansys HFSS vs.
Ansys EMA3D Cable
Which is Right for You?
If you are responsible for ensuring your product's electromagnetic shielding complies with electromagnetic
compatibility (EMC) standards for electromagnetic interference (EMI), you may be exploring simulation
software options. If you haven't considered Ansys software, we recommend that you do. Ansys is the leading
developer of simulation software for electronics as well as fluids, materials, and structures. Over the past 50+
years, Ansys has helped thousands of companies around the world use digital exploration to develop better
products faster and for much less cost.
Enclosures are a common approach to prevent radiated EMI from causing test failures. Ansys offers two
products for testing enclosures and simulating the effect of changes to ventilation holes, slots, cables, and
gaskets: HFSS (High Frequency Structure Simulator) and EMA3D Cable.
In this white paper, we provide an overview of each product and highlight ways to use them for EMC testing
and design iteration. Get more details and see how the products can provide a clear picture of an enclosure's
electromagnetic shielding effectiveness by viewing the recording of this 60-minute webinar.
High-Level Differences
HFSS EMA3D Cable
• Finite Element Solver
• Typically used by electrical engineers
• Typically used to test electronic enclosures
and smaller RF structures where mesh
accuracy is critical
• Enables parametric analysis
• Brings in Near-Field links with SIwave
• Integrates with EMA3D Cable
• Finite-Difference Time-Domain Solver
• Used by electrical and mechanical engineers
• Typically used to test electronic enclosures
and cable harnesses
• Brings in Near-Field links with SIwave
• Integrates with HFSS
WHITEPAPER
