A simple technique for improving the anechoic performance of a pyramidal absorber
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2014
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my.unimap-332882014-04-01T03:08:22Z A simple technique for improving the anechoic performance of a pyramidal absorber M. Nadeem, Iqbal Mohd Fareq, Abd. Malek, Dr. Yeng, S. Lee Liyana, Zahid Muhammad Iqbal, Muhammad Hussain, Dr. Mohd F. H., A Malek Nur Fairuz, Mohamed Yusof Norshafinash, Saudin Noor Anida, Abu Talib mr.nadeemiqbal@gmail.com mfareq@unimap.edu.my s081080344@student.unimap.edu.my miqbal@unimap.edu.my nurfairuz@unimap.edu.my norshafinash@unimap.edu.my anidatalib@unimap.edu.my Microwave absorbers Optimum thickness Pyramidal structures Simulation software Link to publisher's homepage at www.emacademy.org/ In this paper, we propose a very simple technique that offers an extra degree of freedom to optimize the design of a tire dust-based absorber with reduced height. Cladding is a technique that is used to enhance the surface properties of a part, and it has been used in many applications for many years. In this technique, a clad layer is created on the core material, and the composition of the clad layer is adjusted to enhance the performance of the core material. We use a rice husk-clad layer to enhance the impedance matching characteristics of the low-loss, tire-dust core, microwave absorber. The overall design is a two-layer, geometrically-tapered, pyramidal structure composed of two lossy waste materials. Our main goal was to make the front surface less reflective (impedance matched), hence the material of the outer layer (clad) of the absorber was selected on the basis of the analysis of the dielectric properties of the candidate materials. Optimum thickness of the clad was obtained by using CST simulation software and found to be 12mm, for which a reflectivity performance of less than -20dB was achieved in the frequency range of 4 to 20 GHz. The results were found to be better than those provided by an earlier design of the absorber, which was composed of a mixture of tire dust and rice husks. 2014-04-01T03:08:22Z 2014-04-01T03:08:22Z 2013 Article Progress In Electromagnetics Research M, vol. 32, 2013, pages 129-143 1937-8726 http://www.jpier.org/PIERM/pier.php?paper=13061607 http://dspace.unimap.edu.my:80/dspace/handle/123456789/33288 en EMW Publishing |
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| language |
English |
| topic |
Microwave absorbers Optimum thickness Pyramidal structures Simulation software |
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Microwave absorbers Optimum thickness Pyramidal structures Simulation software M. Nadeem, Iqbal Mohd Fareq, Abd. Malek, Dr. Yeng, S. Lee Liyana, Zahid Muhammad Iqbal, Muhammad Hussain, Dr. Mohd F. H., A Malek Nur Fairuz, Mohamed Yusof Norshafinash, Saudin Noor Anida, Abu Talib A simple technique for improving the anechoic performance of a pyramidal absorber |
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Link to publisher's homepage at www.emacademy.org/ |
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mr.nadeemiqbal@gmail.com |
| author_facet |
mr.nadeemiqbal@gmail.com M. Nadeem, Iqbal Mohd Fareq, Abd. Malek, Dr. Yeng, S. Lee Liyana, Zahid Muhammad Iqbal, Muhammad Hussain, Dr. Mohd F. H., A Malek Nur Fairuz, Mohamed Yusof Norshafinash, Saudin Noor Anida, Abu Talib |
| format |
Article |
| author |
M. Nadeem, Iqbal Mohd Fareq, Abd. Malek, Dr. Yeng, S. Lee Liyana, Zahid Muhammad Iqbal, Muhammad Hussain, Dr. Mohd F. H., A Malek Nur Fairuz, Mohamed Yusof Norshafinash, Saudin Noor Anida, Abu Talib |
| author_sort |
M. Nadeem, Iqbal |
| title |
A simple technique for improving the anechoic performance of a pyramidal absorber |
| title_short |
A simple technique for improving the anechoic performance of a pyramidal absorber |
| title_full |
A simple technique for improving the anechoic performance of a pyramidal absorber |
| title_fullStr |
A simple technique for improving the anechoic performance of a pyramidal absorber |
| title_full_unstemmed |
A simple technique for improving the anechoic performance of a pyramidal absorber |
| title_sort |
simple technique for improving the anechoic performance of a pyramidal absorber |
| publisher |
EMW Publishing |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/33288 |
| _version_ |
1643797126671499264 |
| score |
13.222552 |