Projects
Fast multipole methods for electromagnetic scattering at objects composed of complex materials Ghent University
In this project we want to develop a fast multipole full-wave algorithm for the simulation of wave propagation in complex materials. In this context complex materials refer to materials with losses, negative permittivities and/or anisotropic materials. Each of these three extensions of the existing fast multipole methods has specific applications and is confronted with very specific computational problems.
Design of an efficient edge element algorithm for modeling electromagnetic scattering to arbitrary geometries Ghent University
This project departs from a solver written for academic purposes is based on research conducted in the field of boundary element methods (BEM). This solves the scattering problem solver to both perfect conductors and dielectrics on by discretizing a boundary integral equation with a BEM. The obtained system is iteratively solved, the required matrix-vector multiplication will be accelerated with a high-speed fast multipole algorithm, the ...
A Volume Integral Equation (VIE) Algorithm to Model the Non-local Electromagnetic Response of Deep Nanometer Scatterers KU Leuven
Since deep-nanometer scale systems are increasingly studied, accurate macroscopic theories dealing with quantum mechanical effects are in high demand. Concerning the electromagnetic nonlocal response of plasmonic nanostructures, several hydrodynamic models (HDM) have been proposed, each introducing an additional boundary condition to describe the collective motion of the electronic gas. In this work, four HDMs, namely the hard wall ...
Radio-Frequency Electromagnetic Field Exposure and Detection of Mosquitos Ghent University
Wireless communication is a widespread and growing technology Wireless networks use Radio-Frequency (RF) electromagnetic fields (EMFs) at frequencies between 01 GHz and 6 GHz to enable this communication Future networks such as 5th generation networks will operate at higher frequencies (up to 300 GHz) or equivalently smaller wavelengths (> 1 mm, so-called mm-waves) as well As those wavelengths become comparable to the size of a mosquito ...
A Volume Integral Equation (VIE) Algorithm for Modelling the Nonlocal Electromagnetic Response from a Deep Nanometer Scatterer KU Leuven
The recent grand leap in nanotechnology renders us the very capability of miniaturizing classical antennas down to the nanoscale and extends the concept of antennas from conventional RF frequencies to the optical regime. Very recently, the study of these nanoscale antennas, i.e. nanoantennas, has entered the so-called deep-nanometer regime, where the nanoantennas with characteristic dimensions of a few to tens of nanometers are considered. To ...
Computationally Efficient mm-wave Scattering Models KU Leuven
The use of millimeter-wave (mm-wave) frequency bands for fifth-generation (5G) and beyond cellular mobile communications has led to intense interest from academia and industry over these spectrum resources. This underutilized frequency band opens a considerable number of challenges in terms of propagation effects, antenna systems, circuit design, etc. In terms of propagation, the provision of reliable and accurate mm-wave channel models is ...
Solving Inverse Scattering Using Deep Learning KU Leuven
Generalized Space-Time Electromagnetic Metamaterials (GSTEMs) KU Leuven
This project explores Generalized Space-Time Electromagnetic Metamaterials – GSTEMs –, metamaterials formed by the modulation of a host medium with arbitrary space-time profile, as one of the next potential frontiers in contemporary research. As an extension of previously reported Uniform STEMs – USTEMs – they merge general relativity and classical electrodynamics towards uncharted territories of huge scientific and technological potential. ...
Structured low-rank representations for frequency-dependent wave scattering simulations using boundary element methods KU Leuven
The numerical simulation of wave phenomena is increasingly
relevant in several disciplines of science and engineering, including
acoustics, electromagnetics and medical imaging. Boundary element
methods (BEM) are a popular simulation tool for wave problems,
often applied to integral equations in the frequency domain. In the
last three decades, enormous research efforts have went into
efficient BEM solvers at a ...