Enhanced Signal Amplification Reconfigurable Intelligent Surface Architecture

This paper presents an hardware architecture for Reconfigurable Intelligent Surface (RIS). The structure comprises a patch antenna, a piece of RIS board, and a power amplifier. The signal received by the first antenna is amplified and transmitted to the second RIS, where the first antenna is fixedly directed towards a base station and the second RIS can adjust the signal phase. By incorporating a single power amplifier, this new design overcomes the signal path loss issue encountered in traditional RIS, resulting in improved signal strength and quality. The advantages of this new design over conventional RIS are validated through theoretical analysis, simulations, and a comparison of signal-to-noise ratios (SNR). The benefits of this new design compared to the conventional passive RIS structure are evident as it not only mitigates path loss but also simplifies the implementation process, reduces self-interference, and enhances the performance and reliability of communication systems.