CST – Computer Simulation Technology

From Layout to Eye Diagram: CST STUDIO SUITE and the EDA Workflow

Ensuring good Signal Integrity (SI) in high-speed communication PCBs is becoming more challenging as layouts become more complex, the number of layers increases and the boards get smaller. A full-wave three dimensional (3D) electromagnetic simulator can be used to simulate and visualize the propagation of electromagnetic fields across PCBs. This article will describe how CST STUDIO SUITE® can be successfully used to characterize the response of high-speed channels, and how typical SI results such as S-parameters, Time Domain Reflectometry (TDR) data and eye diagrams can be numerically calculated to predict the response of a channel. The article will also discuss how to modify layouts in order to improve channel performance, and provide some design guidelines.

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