The rapid increase in electromagnetic pollution has received focused concentration from researchers all over the world who countered the problem by producing a variety of microwave absorbing materials. Agricultural residue based eco-friendly and bio-degradable microwave absorber is an appealing and challenging area for modern-day researchers. This review paper aims to present an outline of theoretical concepts of microwave absorption phenomenon and numerous absorber structures implemented. Factors affecting the performance of absorbers are examined. Measurement techniques to measure the dielectric properties of the absorber are also presented. This review also enlightens about potential materials for designing absorber structures.

电磁污染的迅速增加已引起世界各地研究人员的关注，他们通过生产各种微波吸收材料来解决这个问题。基于农业残留物的环保和可生物降解的微波吸收器对于现代研究人员来说是一个有吸引力且具有挑战性的领域。本综述旨在概述微波吸收现象的理论概念和实施的众多吸收器结构。检查影响吸收器性能的因素。还介绍了测量吸收体介电特性的测量技术。这篇综述还启发了设计吸收器结构的潜在材料。