Year: 2025
Type: article
Abstract: Reconfigurable intelligent surfaces (RISs) have emerged as a promising technology for improving the performance of wireless communication systems.Although single-feed RIS has shown great potential in coverage extension, its beamforming capability is often limited.In this paper, we investigate the potential of quad-feed transmitting RIS (T-RIS) to enhance beam widening in wireless communication systems using genetic algorithms.Using multiple feed points, the proposed 4-feed T-RIS architecture significantly enhances the beamwidth and coverage.Simulation results show that the 4-feed T-RIS significantly improves half-power beamwidth while maintaining a low sidelobe level.The proposed method presents a promising solution for improving wireless coverage in challenging environments.
Source: URSI Radio Science Letters
DOI: 10.46620/rsl24-0026
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4410977005