1：Experimental Design and Method Selection:

The study employed a conventional mixed oxide technique for synthesizing ZnO doped SrFe0.5Nb0.5O3 ceramics. The phase formation was identified using X-ray diffraction (XRD), and microstructures were examined using a scanning electron microscope (SEM). Dielectric properties were measured using an LCR meter.

2：5Nb5O3 ceramics. The phase formation was identified using X-ray diffraction (XRD), and microstructures were examined using a scanning electron microscope (SEM). Dielectric properties were measured using an LCR meter. Sample Selection and Data Sources:

2. Sample Selection and Data Sources: High purity powders of SrCO3, Fe2O3, and Nb2O5 were used with stoichiometric ratio. Zinc oxide (ZnO) was added with concentrations of 3 vol%.

3：List of Experimental Equipment and Materials:

X-ray diffraction (XRD), scanning electron microscope (SEM), LCR meter, high purity powders of SrCO3, Fe2O3, Nb2O5, and ZnO.

4：Experimental Procedures and Operational Workflow:

The powders were ball milled, dried, calcined, pressed into disc-shape pellets, and sintered. The sintered samples were polished, and silver paste electrodes were applied for electrical measurement.

5：Data Analysis Methods:

The dielectric properties were analyzed, and impedance spectroscopy was used to investigate the dielectric behavior linked with Maxwell-Wagner polarization.