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Electromagnetic Interference and Compatibility (EMI/EMC)

Minimizing electromagnetic interference with simulation delivers high-performance, compliant and safe electronics systems, down to the microchip level.


Performance, Safety and Compliance

Electronic systems are often safety or mission critical. They form the backbone of global technology disruptions, from 5G-connected devices to autonomous vehicles and the Internet of Things. As performance requirements increase and electronics proliferate, the risk of interference leading to degraded performance, unintended consequences—or even failure—rises dramatically. With simulation, EMI/EMC issues can be resolved in advance, with reduced physical testing to deliver high-performance, safe and compliant designs. 

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    PCB and Component Design
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    Cable Harness Design
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    Antenna Design and Placement
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    System Integration

Workflows Simulate Any Electromagnetic Situation

PCB and Component Design

EMC compliance can be simulated with Ansys’ near/far field EMI, parasitic extraction and circuit simulation capabilities. 

Cable Harness Design

With a streamlined cable simulation workflow that's able to handle complex structures and cable routing, placement can be determined with appropriate shielding to minimize cross talk, radiation and susceptibility

Antenna Design and Placement

With full wave electromagnetic field solvers and an electromagnetic interference toolkit, installed antenna radiation patterns can be determined for optimal placement to minimize co-site interference. 

System Integration

Cable and circuit simulations – including shooting and bouncing ray plus techniques and full wave field electromagnetic solvers - enable the performance of electronic subsystems to be examined in electrically large environments.

Featured Products

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Improve Wireless Performance Through Simulation

The world’s growing array of wireless environments—from antennas filling cities to smart devices filling homes—requires engineers to understand potential interference issues, ranging from the circuit board to the end use surroundings. With the potential for interference and performance degradation in our growing world of wireless systems, simulation lets you understand issues early and solve for interference and efficiency.

PCB Simulation using Ansys HFSS

Simulation-Driven Product Development Aids Designers of Printed Circuit Boards

Use the power of Ansys simulation early in the design process to ensure electromagnetic compatibility targets deliver a robust power delivery network, while minimizing board resonances and electromagnetic interference. 

Electric car lithium battery pack and power connections

Ensuring Antenna Performance in Complex Wireless Environments

Determine where wireless system interference is likely to occur early in the development cycle. Use simulation to avoid interference issues, reduce risk and decrease the costs of remediating problems later.


Solving Interference Issues in a Smart Home with EMIT’s Link Analysis Capability

The growing automation of in-home systems means simulation-driven design tools become essential for engineers to make smart devices reliable, inexpensive and energy efficient. Learn how EMIT can determine a smart device’s performance abilities. 



Ansys HFSS 2021 R1: Redefining What’s Possible with Mesh Fusion

This webinar spotlights Ansys 2021 R1’s latest release of Ansys HFSS and provides a detailed look at its new groundbreaking Mesh Fusion technology. Discover how you can break the rules, achieve better designs and deliver breakthrough products with more functionality than ever before.


Accelerating EMI/EMC Testing Using Simulation

Learn how Ansys electromagnetic simulations can help to reduce the number of re-spins in a design, along with the time and cost that companies invest in physical EMI/EMC testing of the products.


Ansys 2021 R1 Update: EMA3D Cable Faster EMC Solving for Large Systems

Join us for this webinar which showcases new Ansys EMA3D Cable features to help you streamline manual cable design.

Featured Resources

White Papers

White Paper

EMI/EMC and Co-existence simulation methodology for high performance digital, mixed signal and RF wireless products

ST Microelectronics shares a new simulation methodology to estimate, investigate and address radiated EMI/EMC/Co-existence issues.



From Chips to Ships, Solve Them All With HFSS

With the introduction of Ansys HFSS Mesh Fusion in Ansys 2021 R1, I am reminded of my amazement the first time I used HFSS more than 20 years ago. And in my opinion, HFSS Mesh Fusion is the biggest thing to happen to HFSS since HFSS. I say this because it will allow HFSS to mesh and solve far more complex designs than I ever thought possible.


Harnessing the Power of Ansys EMA3D Cable

Designing cable harnesses for automotive and aerospace equipment is a daunting engineering challenge. This is primarily due to the difficulty in assessing the impact of electromagnetic (EM) effects induced by factors such as interference, crosstalk, insufficient shielding and lightning strikes. It is critical to mitigate these EM problems to meet stringent demands for electromagnetic interference/compatibility (EMI/EMC) certification of cable harnesses.

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