With the swift advancement of millimeter-wave communication, radar sensing, and 6G technology, there arises a pressing need for high-performance dielectric tunable materials that can function effectively within the 30-300 GHz frequency range. Nevertheless, although traditional ferroelectric materials demonstrate commendable performance in the microwave frequency range, their efficacy notably diminishes when transitioning to the millimeter-wave frequency band. This limitation hinders device integration and the enhancement of overall performance. In recent times, topological domain structures, including polar vortices, skyrmions, and dipole waves, which manifest in PbTiO3/SrTiO3 ferroelectric superlattices, have attracted considerable interest owing to their distinctive polarization configurations and electric field coupling properties. However, the majority of pertinent studies have centered on low-frequency, terahertz, or optical frequency ranges, with no investigations yet undertaken in the millimeter-wave frequency band.