Authors: Yiqin Wang, Shu Sun, Chong Han

Published on: December 20, 2023

Impact Score: 8.22

Arxiv code: Arxiv:2312.12964

Summary

• What is new: A complete experimental analysis of far- and near-field channel characteristics in ELAA technologies at THz frequencies, observing non-linear phase change in NF and verifying the Rayleigh criterion.
• Why this is important: The need for enhanced coverage and extreme data rates in 6G communications requires addressing the expanded Rayleigh distance at THz frequencies, where users are in both FF and NF regions.
• What the research proposes: A new cross-field path loss model that characterizes power change at antenna elements in the UPA, compatible with both FF and NF cases.
• Results: The model based on measurements with a virtual UPA of up to 4096 elements provides insights into NF propagation, spatial non-stationarity, and the transition near the FF and NF boundary.

Technical Details

Technological frameworks used: Experimental analysis using THz virtual antenna array

Models used: Cross-field path loss model

Data used: Measurement of the multi-input-single-output channel with the virtual uniform planar array structure

Potential Impact

Telecommunications, smartphone manufacturers, IoT device producers, and companies involved in 6G technology development.

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