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A Study of Electromagnetic Absorption Performance of Modern Biomass Wall Tile

Linda Mohd Kasim 1,2, Norhayati Mohamad Noor 1, Hasnain Abdullah 1, Azizah Ahmad 1, Nazirah Mohamat Kasim 1, Noor Azila Ismail 1, and Nur Hashira Narudin 1
1. Faculty of Electrical Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Malaysia
2. Universiti Teknologi MARA, Malaysia
Abstract—Electromagnetic elimination was used to eliminate unwanted radiation that may interface with machinery or affect human health. The use of microwave absorbers has become necessary for an environment with a safe electromagnetic wave level. The objectives of this project are to design a microwave absorber as a modern biomass wall tile and to investigate the absorbing performance of the modern wall tile absorbers with different materials. The absorber was designed with similar shapes and different biomass materials. The concept of modern wall tile had been applied to design the absorbers in terms of their shape and dimension by using biomass materials. Biomass materials such as kenaf and coconut coir were used in the study due to their lightweight and environmental-friendly material behavior. The simulation was done using CST Suite Studio software to predict the preliminary result of the absorbers. The proposed designs of the modern wall tile from the CST simulation are then fabricated while the mixtures of the materials are moulded into a microwave absorber. NRL Arch free space method was used to determine the absorption performance of the modern wall tile absorbers at a frequency range from 1GHz to 12GHz. Both results of the simulation and free space measurement are analyzed and discussed. This study showed that absorber KCA has the best performance among all the absorbers with the absorption of more than -10 dB. The mixture of biomass material with carbon has a great absorption performance compared to the mixture of biomass material without carbon.
 
Index Terms—Biomass material, CST simulation, electro-magnetic elimination, free-space method, modern wall tile absorbers, microwave absorbers

Cite: Linda Mohd Kasim, Norhayati Mohamad Noor, Hasnain Abdullah, Azizah Ahmad, Nazirah Mohamat Kasim, Noor Azila Ismail, and Nur Hashira Narudin, "A Study of Electromagnetic Absorption Performance of Modern Biomass Wall Tile," International Journal of Electrical and Electronic Engineering & Telecommunications
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