This article presents a novel approach to creating optical metamaterials for broadband circular polarizers using twisted, planarized nanorod arrays. Traditional optical metamaterials rely on complex, three-dimensional nanostructures, but this study shows that three-dimensional effects can be achieved through the relative orientation of planar inclusions. The proposed method uses a twisted lattice of nanorods to create a broadband, ultrathin circular polarizer that can be integrated into nanophotonic systems. The key idea is that by rotating the orientation of adjacent nanorod layers, the metasurface can exhibit chiral bianisotropy, enabling circular polarization selectivity. This approach avoids the need for complex, three-dimensional inclusions and reduces fabrication complexity. The study demonstrates that this twisted metamaterial can achieve a large extinction ratio and wide bandwidth, with performance comparable to three-dimensional chiral structures. The research shows that the twisted metamaterial can operate as a broadband circular polarizer, with a wide bandwidth and high extinction ratio. The device is fabricated using standard lithographic techniques and exhibits robustness to misalignment, making it suitable for integration into nanophotonic systems. The study also highlights the advantages of this approach over traditional chiral materials, such as cholesteric liquid crystals, by achieving a much larger bandwidth and more efficient polarization control. The results show that the twisted metamaterial can be scaled to longer wavelengths, making it applicable in the mid-infrared and terahertz ranges. The study also discusses the potential for further applications in optical metamaterials, including spatial dispersion control and modal propagation. The proposed method offers a promising alternative to traditional chiral structures, with the potential for broader applications in optical devices and systems.This article presents a novel approach to creating optical metamaterials for broadband circular polarizers using twisted, planarized nanorod arrays. Traditional optical metamaterials rely on complex, three-dimensional nanostructures, but this study shows that three-dimensional effects can be achieved through the relative orientation of planar inclusions. The proposed method uses a twisted lattice of nanorods to create a broadband, ultrathin circular polarizer that can be integrated into nanophotonic systems. The key idea is that by rotating the orientation of adjacent nanorod layers, the metasurface can exhibit chiral bianisotropy, enabling circular polarization selectivity. This approach avoids the need for complex, three-dimensional inclusions and reduces fabrication complexity. The study demonstrates that this twisted metamaterial can achieve a large extinction ratio and wide bandwidth, with performance comparable to three-dimensional chiral structures. The research shows that the twisted metamaterial can operate as a broadband circular polarizer, with a wide bandwidth and high extinction ratio. The device is fabricated using standard lithographic techniques and exhibits robustness to misalignment, making it suitable for integration into nanophotonic systems. The study also highlights the advantages of this approach over traditional chiral materials, such as cholesteric liquid crystals, by achieving a much larger bandwidth and more efficient polarization control. The results show that the twisted metamaterial can be scaled to longer wavelengths, making it applicable in the mid-infrared and terahertz ranges. The study also discusses the potential for further applications in optical metamaterials, including spatial dispersion control and modal propagation. The proposed method offers a promising alternative to traditional chiral structures, with the potential for broader applications in optical devices and systems.