MIMO Antennas for Radiative Near-Field Links
A Comparative Study at 300 GHz
N. Beschoor Plug (TU Delft - Electrical Engineering, Mathematics and Computer Science)
S.O. Dabironezare (TU Delft - Electrical Engineering, Mathematics and Computer Science)
N. Llombart (TU Delft - Electrical Engineering, Mathematics and Computer Science)
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Abstract
This paper presents a comparative study of different Multiple Input Multiple Output (MIMO) array architectures to realize high-capacity Point-to-Point (PtP) wireless links for potential use in future 6G backhauling applications. This study focuses on the 220-320 GHz band, defined by the new IEEE 802.15.3d standard. Both phased array and focal plane array architectures are studied, considering the link to operate in the radiative near-field. The theoretically achievable capacities are presented based on the channel matrix estimated in the radiative near-field and the application of Shannon’s capacity formula. It is found that capacities well above Tbps rates can theoretically be realized, even without the use of interference cancellation techniques.