The effect of the carbon to the S11 measurement on the pyramidal microwave absorbers

Author

Ibrahim, Imran Mohd ; Yaakob, Nur Massyitah ; Husain, Mohd Nor ; Se, Sian Meng ; Shaaban, Azizah

Author_Institution

Univ. Teknikal Malaysia Melaka (UTeM), Durian Tunggal, Malaysia

fYear

2011

fDate

25-28 Sept. 2011

Firstpage

141

Lastpage

145

Abstract

The purpose of this work is to determine the absorption effect by using carbon as absorbing material. It will be used in anechoic chamber in order to avoid reflections that occur on the wall of the chamber. From polystyrene, the absorbers are cut into pyramidal shaped. The pyramidal shaped is chosen because it could meet the specified industrial standards which can work well at wide range of microwave frequency. To verify the performance of the absorber, a measurement is conducted to determine the absorption rate in frequency range 1 to 10 GHz. The absorber also compared to commercial absorber. The results shows carbon is a good material to absorb the microwave energy. The absorber that has been developed is a low cost with reliable performance.

Keywords

anechoic chambers (electromagnetic); carbon; electromagnetic wave absorption; microwave materials; S₁₁ measurement; absorbing material; absorption effect; absorption rate; anechoic chamber; carbon; chamber wall; frequency 1 GHz to 10 GHz; microwave frequency; polystyrene; pyramidal microwave absorbers; specified industrial standards; Carbon; Frequency measurement; Microwave circuits; Microwave measurements; Reflection; Surface impedance; anechoic chamber; carbon; microwave absorber; pyramidal shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology and Applications (ISWTA), 2011 IEEE Symposium on

Conference_Location

Langkawi

Print_ISBN

978-1-4577-1496-2

Type

conf

DOI

10.1109/ISWTA.2011.6089397

Filename

6089397