FDTD modeling of heatsink RF characteristics for EMC mitigation

FDTD Modeling of Heatsink RF Characteristics for EMC Mitigation

Due to their size and complex geometry, large heatsinks such as those used in the power electronics industry may enhance the radiated emissions produced by the circuits employing them. Such enhancement of the radio frequency (rf) radiation could cause the equipment to malfunction or to contravene current EMC regulations. In this paper, the electromagnetic resonant effects of heatsinks are exami...

Global modeling of carrier-field dynamics in semiconductors using EMC–FDTD

The interactions between carriers and fields in semiconductors at low frequencies (<100 GHz) can be adequately described by numerical solution of the Boltzmann transport equation coupled with Poisson’s equation. As the frequency approaches the THz regime, the quasi-static approximation fails and full-wave dynamics must be considered. Here, we review recent advances in global modeling techniques...

A Hybrid FDTD/Quasistatic Technique for the Accurate Modeling of RF Loss Mechanisms

This paper presents a novel method of coupling a quasistatic field solver with the finite-difference time-domain technique for the more efficient modeling of multilayer packaging structures including metal and dielectric loss effects. Lossy metal characteristics are first simulated with a dense quasistatic or a dense 2.5D-FDTD grid and the resulting field correction factors are then used to enh...

Study on RF Characteristics and Modeling of Scaled MOSFET

Coupled simulation of carrier transport and electrodynamics: the EMC/FDTD/MD technique

In order to understand the response of conductive materials to high-frequency electrical or optical excitations, the interplay between carrier transport and electrodynamics must be captured. We present our recent work on developing EMC/FDTD/MD, a self-consistent coupled simulation of semiclassical carrier transport, described by ensemble Monte Carlo (EMC), with full-wave electrodynamics, descri...