Items Tagged with 'electromagnetic'

We care about maintaining the same differential impedance for the same reason we care about maintaining the same instantaneous impedance of a single-ended (SE) transmission line: to avoid reflections. SIJ’s EAB member Bert Simonovich explains the fundamentals and why it matters.

Return current for a signal always finds a way to flow as close to the signal as possible, thus minimizing the magnetic energy stored in the loop defined by the signal and its return path. So, the return current path is the combination of conduction paths that together minimize the stored magnetic energy. Some elements of the return current path may be part of the design and other elements may be unintentional.

ANSYS announced today that it has entered into a definitive agreement to acquire Helic, the industry-leading provider of electromagnetic crosstalk solutions for systems on chips (SoCs). By combining the Helix products with its own flagship electromagnetic and semiconductor solvers, ANSYS aims to provide a comprehensive solution for on-chip, 3D integrated circuit and chip-package-system electromagnetics and noise analysis.