DUAL BAND FREQUENCY SELECTIVE SURFACE FOR STABLE ELECTROMAGNETIC ISOLATION IN MODERN COMPUTING AND COMMUNICATION PLATFORMS

The paper describes a dual band frequency selective surface that is capable of providing electromagnetic shielding in the ranges of 4.92 to 9.14 GHz and 11.70 to 12.79 GHz.The mentioned bands cover some of the most common frequencies such as C, X, and the lower Ku bands that are exceptionally used in radar, satellite, and high-frequency communication systems.The stopbandbehavior of the surface is very pronounced with the stable transmission response and the strong attenuation in both bands.It is a compact geometry that allows the surface to be easily integrated into the computing platforms and embedded systems that are operating in complex electromagnetic environments.The design enhances isolation for the devices that are placed next to the radar sensors, satellite modules, and wireless units.The structure offers a simple and efficient means of selective electromagnetic protection for the modern communication and computing applications.