Abstract
In this letter, a wireless transmitter using the new architecture of programmable metasurface is presented. The proposed transmitter does not require any filter, nor wideband mixer or wideband power amplifier, thereby making it a promising hardware architecture for cost-effective wireless communications systems in the future. Using experimental results, we demonstrate that a programmable metasurface-based 8-phase shift-keying (8PSK) transmitter with 8*32 phase adjustable unit cells can achieve 6.144 Mbps data rate over the air at 4.25 GHz with a comparable bit error rate (BER) performance as the conventional approach without channel coding, but with less hardware complexity.
Highlights
The fifth-generation (5G) wireless communication will soon be delivering the needed ultra-high data rates, for which massive multiple-input multiple-out (MIMO) antennas and millimeter-wave are the two key technologies
The need for large numbers of high-performance RF chains means that there is an increase in the hardware complexity, leading to high cost and power consumption [1]
A recent study can be found in [6] where a metasurface-based binary frequency shift keying (BFSK) transmitter was presented, in which the two signal frequencies representing ‘0’ and ‘1’ respectively were synthesised directly via a programmable metasurface
Summary
The fifth-generation (5G) wireless communication will soon be delivering the needed ultra-high data rates, for which massive multiple-input multiple-out (MIMO) antennas and millimeter-wave (mm-wave) are the two key technologies. The need for large numbers of high-performance RF chains means that there is an increase in the hardware complexity, leading to high cost and power consumption [1]. Solutions such as analog beamforming [2] and hybrid beamforming [3] have been developed in the literature, to reduce the number of RF chains, they do not fundamentally eliminate the hardware constraints. Only a low data rate of 78.125 kbps was reported
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