Transmissive Metasurface for Satcom Applications

Circular dichroism (CD) in electromagnetic (EM) waves offers significant potential for advancing various scientific and technological fields. This study presents a unique approach using a C-shaped transmissive chiral metasurface, engineered to achieve strong CD within the X-band frequency range. The metasurface demonstrates outstanding selectivity for left-hand circularly polarized (LHCP) and right-hand circularly polarized (RHCP) incident waves, featuring enhanced bandwidth and a strong CD of 68.3%. With a thickness of 0.8 mm and built on an FR-4 substrate, the metasurface is optimized for high selectivity toward LHCP and RHCP waves, representing a significant advancement in the study of transmissive metasurfaces. By seamlessly combining theoretical knowledge with practical application, this research not only extends the boundaries of metasurface design but also paves the way for diverse applications across various scientific disciplines, including satellite communication, stealth technology, and antenna design, etc.