Research papers

This paper introduces a data-driven meta-modelling framework designed to optimize challenging antenna designs, addressing the limitations of traditional gradient-based – and global search methods. The framework utilizes Bayesian Optimization (BO) and High-Order Gaussian Processes (HOGPs) to approximate black-box functions, substantially…

The Higher-Order Array Decomposition Method (HO-ADM) is extended to handle fully populated or thinned finite array antennas and scatterers which can be modeled as arrays with connected elements lying on a regular lattice. The Discontinuous Galerkin Method (DGM) is employed…

The Higher-Order Array Decomposition Method (HO-ADM) has been extended to regular arrays with dielectric substrates. To maintain the multi-level block-Toeplitz Method of Moments (MoM) matrix structure, internal equivalent currents are introduced, ensuring an FFT-accelerated matrix vector product (MVP). Results demonstrate…

This work presents the design and manufacturing of a low-profile coaxial-to-dual ridge waveguide adapter operating in the X band from 8.025 GHz to 8.4 GHz. The adapter will connect the feed of the antenna system to the RF front-end. The…

This paper presents a fast direct solver for the Combined Field Integral Equation using higher-order discretizations. By adopting higher-order polynomials with the Method of Moments, the number of unknowns is significantly reduced. The fast direct solver leverages the efficiency of…