Giorgio Carluccio

Recent developments on the Iterative Physical Optics for the analysis of electrically large scatterers

The most recent developments of an efficient Iterative Physical Optics (IPO) algorithm for analyzing the electromagnetic scattering of complex and electrically large scenarios are presented. The algorithm predicts multiple interactions between the objects comprised in the scenarios under the Physical Optics (PO) approximation. Various techniques for accelerating and parallelizing the algorithm have been used, thus obtaining an efficient tool that can be used to realize a novel class of high-frequency solvers.

Design and Manufacture of Cosecant-Squared Complementary Reflectarrays for Low-Cost Applications

A novel solution for the manufacturing of a reflectarray antenna with cosecant-squared radiation pattern is presented. The unit cell simply consists of a 3-D printed nylon grid inserted in between two thick metallic plates. To introduce the required phase delay, C and reverse C slots are laser cut into the plate illuminated by the feeder. This solution allows obtaining an efficient, robust, and compact antenna with low-cost manufacturing process, even for no mass production. Measurements confirm the feasibility of the proposed solution and show its performances.

A Flexible, General-Purpose Code Based on the Iterative Physical Optics Algorithm: Analyzing Electromagnetic Scattering in Electrically Large Scenarios. [EM Programmer's Notebook]

A very flexible and efficient iterative physical optics (IPO) algorithm is presented for analyzing the electromagnetic (EM) scattering of complex and electrically large problems. The algorithm accounts for multiple interactions between the objects comprised in the scenarios under the physical optics (PO) approximation. Various techniques for accelerating and parallelizing the algorithm were used, thus obtaining an efficient tool that can be used in novel high-frequency solvers.

Frequency and time domain UTD vertex diffraction: A heuristic solution and a step toward the exact one

The diffraction by vertexes or corners is important in practical engineering applications when it is necessary to characterize the scattering of objects with arbitrary shapes and finite dimensions. In this paper we discuss some of the existing Uniform Theory of Diffraction (UTD) solutions present in the literature. We will focus our attention on frequency domain heuristic solutions, which is then also extended in the time domain. Finally, we will discuss about the possibility of developing novel hybrid numerical-asymptotic solutions which can improve the existing ones.