hongsheng Du
"This dataset presents the full-wave electromagnetic simulation results for a low-profile, shared-aperture dual-band circularly polarized (CP) antenna based on Substrate Integrated Waveguide (SIW) technology. The antenna is designed to operate at both a lower frequency band (5.73 GHz) and a higher frequency band (25.3 GHz). The provided data covers the performance of the basic SIW unit, as well as the complete antenna structure across both operating bands. Key electromagnetic parameters included in this dataset are reflection coefficients (S11), axial ratios, realized gains, and 2D radiation patterns. This dataset can be utilized by researchers and engineers to verify the performance of the proposed shared-aperture design, study dual-band circular polarization characteristics, and serve as a reference for developing compact microwave and millimeter-wave antenna systems."