S. Vidhya, Karthikeyan M
Abstract A 1-bit coding metamaterial work focused on the terahertz frequency region, resulting in a compact, novel design. Two unit cells, element 0 and element 1, having phase responses of 0° and 180°, were designed in the frequency range of 1 to 7 THz. The reflection coefficient, transmission coefficient, and phase response characteristics of element 1 were all carefully examined. At 2.65 THz and 6 THz, the necessary phase response was achieved. The validation was implemented by using CST Microwave Studio 2021. The proposed unit cell offers reduced electrical size with strong electromagnetic control. Seven coding sequences were adopted by exploiting phase response properties and used for the smaller lattices (4, 6, and 8) and the larger lattices (20, 24, and 28) in the parametric studies. Each coding sequence (CS) was analyzed for its monostatic and bistatic curves. The coding sequence 4 offers excellent Radar cross section(RCS) reduction of −76.12 dBm2 for the smaller lattice. The geometry of the designed unit cell ensures strong excitation of the current at the corners, which leads to wide-band RCS reduction.