INTRODUCTION ELECTROMAGNETIC INTERFERENCE issues can arise anywhere in electronic equipment with unpredictable and troublesome effects. These issues challenge hardware design engineers, and the challenges escalate as today’s electronic equipment becomes both thinner and multifunctional. For example, modern cellular phones are being equipped with high-speed microprocessors, wireless LANs, Blueto...

We report optimized design of multilayered electromagnetic shield using real coded genetic algorithm. It is observed that the shielding effectiveness in multilayer design is higher than single layered counterpart of equal thickness. An effort has been made to develop an alternative approach to achieve specific objective of identifying the design characteristics of each layer in the multilayered...

Graphene nanostructures were synthesized by Hummer method. 1, 3, 5 and 7 wt% of graphene nanostructures were suspended in certain amount of acetone on a mechanical stirrer and stirred then added to epoxy resin. After 4 hours, solution and Graphene platelets (GPs) were prepared. Nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM ), Fourier transform i...

Electromagnetic interference disturbs the working of electronic devices and affects surroundings human health. Consequently, research has led to development radiation-protection materials. Inherently conducting polymers have been found be suitable for electromagnetic (EMI) shielding owing their fine electrical conductivity properties. Moreover, nanoparticle-reinforced conjugated used form effic...

There exists serious miscomprehension in the open literature about electromagnetic interference shielding effectiveness (EMI SE) as a critical index to evaluate performance, which is misleading graduates and newcomers embarking on field of materials. EMI SE defined sum three terms including reflection loss, absorption loss multiple classical Schelkunoff theory, while it decomposed into two name...