Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Floquet Spectral Almost Periodic Modulation of Massive Finite and Infinite Strongly Coupled Arrays: Dense Massive MIMO, Intelligent Surfaces, 5G and 6G Applications

Version 1 : Received: 20 November 2021 / Approved: 22 November 2021 / Online: 22 November 2021 (15:11:58 CET)

A peer-reviewed article of this Preprint also exists.

Bilel, H.; Taoufik, A. Floquet Spectral Almost-Periodic Modulation of Massive Finite and Infinite Strongly Coupled Arrays: Dense-Massive-MIMO, Intelligent-Surfaces, 5G, and 6G Applications. Electronics 2022, 11, 36. Bilel, H.; Taoufik, A. Floquet Spectral Almost-Periodic Modulation of Massive Finite and Infinite Strongly Coupled Arrays: Dense-Massive-MIMO, Intelligent-Surfaces, 5G, and 6G Applications. Electronics 2022, 11, 36.

Journal reference: Electronics 2021, 11, 36
DOI: 10.3390/electronics11010036

Abstract

In this paper, we introduce a new formulation based on Floquet (Fourier) spectral analysis combined with a spectral modulation technique (and its spatial form) to study strongly coupled sublattices predefined in the infinite and large finite extent of almost periodic antenna arrays (e.g metasurfaces). This analysis is very relevant for dense massive MIMO, intelligent surfaces, 5G, and 6G applications (used for very small areas with a large number of elements such as millimeter and terahertz waves applications). The numerical method that is adopted to model the structure is the method of moments simplified by equivalent circuits MoM GEC. Other numerical methods (as the ASM array scanning method and windowing Fourier method) used this analysis in their kernel that to treat periodic and pseudo-periodic (or quasi-periodic) arrays.

Keywords

Floquet analysis; MoM method; Almost periodic antenna arrays; Fourier analysis; strong mutual coupling; Dense massive MIMO; MM and THz waves; 5G and 6G applications

Subject

ENGINEERING, Electrical & Electronic Engineering

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