A study of flat stick bamboo microwave absorber performance

Kasim, Linda Mohd; Abdullah@Idris, Hasnain; Suffian, A S Ahmad; Noor, Nor Laila Md; Kasim, Nazirah Mohamat; Ahmad, Ausaf; Ismail, Noraini; Razali, Ahmad Rashidy; Taib, Mohd Nasir

doi:10.1088/1742-6596/1349/1/012007

J. Phys.: Conf. Ser.

2019

DOI: 10.1088/1742-6596/1349/1/012007

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A study of flat stick bamboo microwave absorber performance

Linda Mohd Kasim

Hasnain Abdullah@Idris

A S Ahmad Suffian

et al.

Abstract: Microwave absorber able to inhibit the reflection of electromagnetic radiation. Microwave absorbers are used in an anechoic chamber along with its wall, ceiling and floor for the electromagnetic compatibility (EMC) and electromagnetic interference (EMI) evaluation. This research is to develop a flat shape of biomass absorbers using an agricultural material. The main material used in constructing the flat absorber is a natural bamboo. The flat shaped absorber is chosen because it could reach the standard set in… Show more

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Cited by 2 publications

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Performance Study of Coconut Coir Pyra-Shape Absorber Design

Sharif¹,

Bahrin²,

Baharudin³

et al. 2020

ijeetc

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Agriculture waste has huge potential to be used as an alternative material for constructing microwave absorber which is typically used in an anechoic chamber. The existing microwave absorbers are normally manufactured from chemical substances. This project is proposing the use of a new composite biomass material namely coconut coir, for constructing microwave absorbers. Generally, pyramidal shape is chosen since it is commonly used in the industry. The major part of this project involves an intense study in designing and developing the best techniques to construct pyramidal shape microwave absorber. The frequency range investigated in this work is between 1GHz to 12GHz. Referring to the commercial absorber as the standard, the reflectivity performance of this coconut coir pyramidal absorber was thoroughly investigated in this research. It is then proven that the biomass material used in this study is found to have a significant impact on the microwave absorber performance.

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Performance Study of Coconut Coir Pyra-Shape Absorber Design

Sharif¹,

Bahrin²,

Baharudin³

et al. 2020

ijeetc

View full text Add to dashboard Cite

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A Study of Electromagnetic Absorption Performance of Modern Biomass Wall Tile

Kasim¹,

Noor²,

Abdullah³

et al. 2020

ijeetc

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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.

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A study of flat stick bamboo microwave absorber performance

Cited by 2 publications

References 5 publications

Performance Study of Coconut Coir Pyra-Shape Absorber Design

Performance Study of Coconut Coir Pyra-Shape Absorber Design

A Study of Electromagnetic Absorption Performance of Modern Biomass Wall Tile

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