Instrumentation based material characterization of a split square ring metamaterial and its analytical study as cloak for microwave communication applications

The study of materials with flexibility, compressive strength, and outstanding resistance is in high demand in the domain of wireless technology. The aim of this study is to design a flexible substrate material that is suitable for cloaking in the microwave frequency range. To determine the characteristics of the materials, commercially obtainable analyzing techniques such as Scanning Electron Microscopy (SEM), x-ray Diffractometer (XRD), and Fourier Transform Infrared Spectroscopy (FTIR) are used. The proposed structure is validated using an electromagnetic simulator, and the metamaterial characteristics are seen as a result. The metasurface is now wrapped around the cylindrical object that will be concealed. The power flow distributions are used to examine the cloaked cylindrical object. The cloak’s resonating frequencies are 4.17 GHz, 6.98 GHz, 9.79 GHz, 14.38 GHz, and 17.07 GHz. Finally, the cloak is measured in the near field using a horn antenna arrangement. The measured results agree perfectly with the simulated ones and are suitable for microwave applications in the X, C, and Ku bands.