Design & SimulationNovember 27, 2018

SIMULIA Whitepaper: A Removable EBG-Based Common Mode Filter for PCIe-Oriented High-Speed Buses

Electromagnetic bandgap structures (known as EBG) are a type of metamaterial –…
Avatar Antonio Orlandi

Electromagnetic bandgap structures (known as EBG) are a type of metamaterial – a structure carefully designed to have electromagnetic properties that don’t occur in nature – that can be tuned to allow some frequencies to pass through while blocking others. By packaging an EBG as a surface mount component, it can be made into a removable common mode filter that can placed on a high-speed digital printed circuit board and used to reduce interference to the signal.


EBGs are much smaller than conventional filters and offer great potential for miniaturization on high-density interconnects. Our newest whitepaper details how researchers used simulation with CST Studio Suite® to design a removable EBG filter. The filter was modeled in both the time and frequency domain in order to analyze and optimize its filtering performance and to replicate time-domain reflectometry to analyze signal integrity (SI). The resulting R-EBG component offers excellent interference filtering in a compact, versatile package.

CST Studio Suite model of the Removable EBG-based Common-Mode BUS filter.

Read the full whitepaper.

Stay up to date

Receive monthly updates on content you won’t want to miss


Register here to receive a monthly update on our newest content.