The 4th Prof. Vijaya Agarwala Memorial National Symposium on Microwave Absorbing Materials (VAMMAM-2020)” was held during 23 - 24th, August 2020 at Indian Institute of Technology Roorkee in association with Centre Nanotechnology and Common Research Development Hub (CRTDH) for New Materials/Stealth Applications Department Applied Mechanics Motilal Nehru Allahabad, Prayagraj, India.

In this study, a new closed-form expression is developed to determine the equivalent electromagnetic parameters (permittivity and permeability) of biaxial anisotropic honeycomb radar-absorbing materials (RAMs). Based on medium theory, nonmagnetic substrate absorbing coating structure are one kind material, then, effective properties irregular hexagonal (compressed or stretched) honeycombs obtai...

The aim of this work is to present radar cross section (RCS) measurements of a panel constituted of a flat aluminum plate with and without radar absorbing materials (RAM) type thin rubber sheets, in the range of 8 – 12 GHz. Two different loads were evaluated in the RAM formulation: 1. Magnetic (ferrites MnZn, NiZn and MgZn based), and 2. Dielectric (conducting polymers polyaniline based). The m...

Microwave absorbing materials are usually designed to solve protection against electromagnetic interference in wireless communication systems and high frequency circuit mechanisms. In this research polystyrene (PS) nanocomposites containing various nano-fillers were successfully synthesized. The novelty of this work is comparing of three various nanostructures: non-metallic conductive graphene ...

The technique of tailoring the complex refractive index of an artificial dielectric material has been developed at the University of Lowell Research Foundation (ULRF). Low reflection coatings, generally referred to as Dällenbach layers, have been designed for metal substrates using the artificial dielectric. The method of characterizing materials for the purpose of tailoring their dielectric pr...

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