Breaking Radiation Symmetry via Continuous Pancharatnam–Berry Prephase for High-Gain and Compact 1-Bit Reconfigurable Transmitarray

Reconfigurable metasurfaces are promising candidates for 6G communications due to their ability to dynamically manipulate electromagnetic (EM) waves. However, conventional 1-bit metasurfaces are fundamentally constrained by binary phase quantization, leading to symmetric radiation patterns under normal incidence and impeding high-gain single-beam generation. Here, we introduce a continuous Pancharatnam-Berry (PB) prephase strategy to address this limitation. By rotating the meta-atom, a PB phase