A. Di Maria

An Efficient Technique for the Analysis of Large Multilayered Printed Arrays

In this letter, we present an efficient technique based on the extension of the adaptive integral method (AIM) that allows the full-wave analysis of electrically large multilayered printed arrays that have one or more planar metallizations and vertical conductors. The array patches can be of arbitrary shape and orientation and are modeled with subdomain triangular basis functions. This method makes use of a 2D-FTT/CG scheme, reducing the CPU time per iteration to O(N log2N) and the memory requirement to O(N).

An efficient technique for the analysis of reflectarrays

In this paper, we present an efficient technique based on the extension of the Adaptive Integral Method (AIM) that allows the full-wave analysis of microstrip reflectarrays. The reflectarray patches can have arbitrary shape and orientation and are modelled with subdomain triangular basis functions. The method makes use of a 2D-FTT/CG scheme, reducing the CPU time per iteration to 0(N logN) and the memory requirement to O(N).

Design, Optimization and Analysis of Broadband Reflectarray Antennas

This paper addresses the design of a broadband reflectarray which takes advantage of the introduction of a suitable non-conventional shape radiating element to assure a large gain bandwidth. The element shape presents sufficient degrees of freedom to compensate the frequency variation of the differential spatial phase delay even when single-layer printed patches are employed.