International Journal of Research and Development in Engineering Sciences https://www.ijrdes.com N Dhora Babu 2 1 (January - February) 2020 02 January-February enBio-TissuesElectromagnetic EnergyDielectric PropertiesSpecific Absorption Rate (SAR)Biomedical ApplicationsRF Exposure The interaction between electromagnetic EM energy and biological tissues has become a critical area of study in biomedical engineering and electromagnetic research This paper presents an investigation into the characteristics of biotissues when exposed to various frequencies of electromagnetic energy The study focuses on understanding parameters such as dielectric constant conductivity permittivity and specific absorption rate SAR which determine how EM waves propagate absorb and dissipate within biological materials Different types of tissuessuch as skin muscle fat and boneexhibit distinct electromagnetic properties depending on their composition and water content Experimental and simulationbased analyses are conducted to evaluate tissue behavior under microwave and radio frequency RF exposure The findings provide insights into optimizing medical applications such as imaging hyperthermia treatment and wireless body area networks while also addressing safety concerns related to electromagnetic radiation This research contributes to the development of safer and more effective biomedical devices and diagnostic systems Copyright (c) 2026 International Journal of Research and Development in Engineering Sciences. All rights reserved. 2020 All Rights Reserved