Open AccessHardened Glass Particle and Carbon Black Using Resin for Potential Electromagnetic Shielding in Biomedical Electronic Equipments
Author(s) -
E. M. Cheng,
M.S. Abdul Majid,
Shahriman Abu Bakar,
Nashrul Fazli Mohd Nasir,
Khor Shing Fhan,
Kok Yeow You,
Kim Yee Lee,
M.J.M. Ridzuan,
Tae-Whan Hong,
Shahrir Ridha Shaharuddin,
Beh Chong You
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1372/1/012072
Subject(s) - electromagnetic shielding , materials science , dielectric , attenuation coefficient , carbon black , reflection coefficient , electromagnetic interference , transmission coefficient , composite material , attenuation , electromagnetic radiation , electromagnetic field , composite number , frequency band , permeability (electromagnetism) , electromagnetic compatibility , optics , optoelectronics , transmission (telecommunications) , electrical engineering , physics , natural rubber , chemistry , antenna (radio) , quantum mechanics , engineering , biochemistry , membrane
This study aims to investigate the electromagnetic properties of a composite of hardened glass particle and carbon using resin in determining the absorbability of the composite for electromagnetic interference (EMI). The electromagnetic absorption measurement was conducted using T-R method (transmission-reflection) by measuring the dielectric constant, loss factor, real and imaginary part of permeability, reflection coefficient and transmission coefficient. The measurement is taken for X band frequency and Ku band frequency within the frequency range from 8.2GHz to 12.4GHz and 12.4GHz to 18GHz, respectively. Dielectric constant of sample decrease when frequency increases. The high dielectric constant of material implies that the material has high absorbability of field energy, resulting in high attenuation of the applied field.