Could you help me polish the following paragraphA reconfigurable flat lens antenna with 16×16 unit cells based on functional material GeTe is proposed in this work By changing the state of the GeTe in

In this study, a novel reconfigurable flat lens antenna consisting of 16×16 unit cells, utilizing the functional material GeTe, is presented. By altering the state of the GeTe on the surface, the antenna's radiation beam can be steered towards various angles. The lens antenna exhibits an impressive 6% gain bandwidth at a 3-dB level, along with a remarkable maximum gain of 22.5 dBi. These outstanding characteristics make the proposed lens antenna highly suitable for potential applications in the field of 6G wireless communications