Binomial multi-layer coconut shell-based rubber microwave absorber design

Author

Salleh, M.K.M. ; Yahya, M. ; Awang, Z. ; Muhamad, W.N.W. ; Mozi, A.M. ; Yaacob, N.

Author_Institution

R&D, Telekom Malaysia, Cyberjaya, Malaysia

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

187

Lastpage

190

Abstract

This paper presents results of a study on multi-layer binomial radar absorbers constructed from rubber latex using coconut shells as fillers. The microwave properties of the absorbers were measured using a microwave non-destructive testing (MNDT) technique. The performance of single layer, two-layer and three-layer absorbers were simulated using a commercial 3D electromagnetic simulator. Single layer and two-layer absorbers have bandwidths of 11% and 8% respectively, while the three-layer absorber exhibited the widest bandwidth of 85%. The effect of carbon content and the absorber thickness has been studied and show that increasing absorber thickness and carbon content in the samples shifted the reflection frequency while the bandwidth remained.

Keywords

electromagnetic wave absorption; microwave materials; nondestructive testing; rubber; MNDT technique; binomial multilayer coconut shell-based rubber microwave absorber design; commercial 3D electromagnetic simulator; microwave nondestructive testing technique; rubber latex; single-layer absorbers; three-layer absorbers; two-layer absorbers; Bandwidth; Carbon; Impedance; Materials; Microwave theory and techniques; Permittivity; Reflection; Radar absorbing material; microwave absorber; multilayer absorber;

fLanguage

English

Publisher

ieee

Conference_Titel

RF and Microwave Conference (RFM), 2011 IEEE International

Conference_Location

Seremban, Negeri Sembilan

Print_ISBN

978-1-4577-1628-7

Type

conf

DOI

10.1109/RFM.2011.6168726

Filename

6168726