Near field transmission using Hermite-Gaussian modes
Chenxi Zhu
TL;DR
This paper develops a near-field RF transmission method using Hermite-Gaussian modes with MIMO techniques, optimizing beam parameters and demonstrating high spectrum efficiency through simulations at 300GHz.
Contribution
It introduces a novel near-field RF transmission approach utilizing Hermite-Gaussian modes and MIMO, with optimized beam steering and antenna design for high spectrum efficiency.
Findings
Achieved spectrum efficiency of 294.3bps/Hz with 36 HG modes.
Demonstrated beam steering via 3D antenna array rotation.
Optimized antenna size and beam parameters for near-field transmission.
Abstract
RF transmission in line-of-sight near field based on Hermite-Gaussian (HG) modes is developed. Multiple HG modes are transmitted and received using rectangular antenna arrays to form the basic modes and dimensions for MIMO transmission. Beam steering can be achieved by manipulating the antenna arrays with 3D rotation in the desired EM field. The beam parameters are optimized to minimize the size of the antennas. Simulation is performed for a 300GHz system with free space channel model. Spectrum efficiency up to 294.3bps/Hz can be achieved with 36 HG modes and cross-polarization.
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Taxonomy
TopicsAdvanced Antenna and Metasurface Technologies · Millimeter-Wave Propagation and Modeling · Advanced Wireless Communication Technologies