1：Experimental Design and Method Selection:

The study involves designing a polarization rotation reflective surface (PRRS) to achieve circular polarization with wide beamwidth. A narrow rectangular patch antenna is used as a dipole source on the PRRS. An eight-element linear phased array is constructed using this antenna element for wide-angle scanning. Simulations are performed using HFSS software under Floquet boundary conditions, and measurements are conducted in an anechoic chamber.

2：Sample Selection and Data Sources:

The PRRS cell is designed with specific dimensions (e.g., l = 4.4 mm, h = 1.5 mm). The antenna and array are fabricated and measured, with data collected on return loss, radiation patterns, axial ratio, gain, and efficiency.

3：4 mm, h = 5 mm). The antenna and array are fabricated and measured, with data collected on return loss, radiation patterns, axial ratio, gain, and efficiency. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment includes HFSS software for simulation, an anechoic chamber for measurements, digital phase shifters, a 16-way power divider, coaxial cables, SMA connectors, and substrates with specific dielectric constants (e.g., 6 and 2.2). Materials include copper layers and substrates.

4：2). Materials include copper layers and substrates. Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: The PRRS structure is analyzed for reflection characteristics. The antenna is fabricated and tested for S11, radiation patterns, and axial ratio. The phased array is assembled, connected to a beam-control system, and scanned from -65° to 65° while measuring gain and axial ratio.

5：Data Analysis Methods:

Data is analyzed using simulation results from HFSS and measured data. Statistical analysis includes comparing simulated and measured values for validation.