1：Experimental Design and Method Selection:

The study employs a metamaterial-based monopole patch antenna design utilizing BCSRR for frequency tuning. The design rationale focuses on adjusting the interplanar distance between the rings of the BCSRR to alter the effective capacitance and inductance, thereby tuning the magnetic resonant frequency.

2：Sample Selection and Data Sources:

The antenna is fabricated using copper sheets and a PVC foam sheet as the dielectric substrate. The selection criteria include the material properties and geometrical dimensions suitable for achieving the desired frequency tuning range.

3：List of Experimental Equipment and Materials:

Copper sheets (20 μm thickness), PVC foam sheet (1.5 mm thickness, relative permittivity 1.2, dielectric loss tangent 0.001), and BCSRR rings (inner radius 4 mm, outer radius 6 mm, split width 0.5 mm).

4：5 mm thickness, relative permittivity 2, dielectric loss tangent 001), and BCSRR rings (inner radius 4 mm, outer radius 6 mm, split width 5 mm). Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: The BCSRR is fabricated and coupled to a monopole patch antenna. The interplanar distance between the rings is varied to achieve frequency tuning. The S11 characteristics are measured to evaluate the antenna's performance.

5：Data Analysis Methods:

The S11 characteristics versus frequency are analyzed to determine the tuning range and performance of the antenna. The analysis includes comparing experimental and simulation results.