Research papers

Results using a new translation operator for the Multi-Level Fast Multipole Method are presented. Based on Gaussian beams, the translation operator allows a significant portion of the plane-wave directions to be neglected, resulting in a much faster translation step. Publication:…

The design and optimization of a single-layer multifaceted dual-polarization contoured beam reflectarray with different coverages in each polarization has been presented. The reflectarray is optimized using a direct optimization technique to produce a contoured beam for a European coverage in…

The Physical Optics approximation is a widely used asymptotic method for calculating the scattering from electrically large bodies. It requires significant computational work and little memory, and is thus well suited for application on a Graphics Processing Unit. Here, we…

Two efficient analysis methods for the accurate modeling of electrically large dielectric lens antennas are presented. The first method is based on Double Physical Optics (PO), which takes into account an additional set of reflections within the lens, whereas the…

This paper presents an efficient technique for full-wave analysis of dielectric lenses with integrated feeding. The feeding section is analysed with a higher-order 3D-MoM algorithm, while the rotationally symmetric lens is analysed with a higher-order BoR-MoM. Each method allows the…