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A Study of the Anechoic Performance of Rice Husk-Based, Geometrically Tapered, Hollow Absorbers
المؤلفون المشاركون
Iqbal, Muhammad Nadeem
Malek, Mohd. Fareq
Lee, Yeng Seng
Zahid, Liyana
Mezan, Muhammad Shafiq
المصدر
International Journal of Antennas and Propagation
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-01-05
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Although solid, geometrically tapered microwave absorbers are preferred due to their better performance, they are bulky and must have a thickness on the order of λ or more.
The goal of this study was to design lightweight absorbers that can reduce the electromagnetic reflections to less than −10 dB.
We used a very simple approach; two waste materials, that is, rice husks and tire dust in powder form, were used to fabricate two independent samples.
We measured and used their dielectric properties to determine and compare the propagation constants and quarter-wave thickness.
The quarter-wave thickness for the tire dust was 3 mm less than that of the rice husk material, but we preferred the rice-husk material.
This preference was based on the fact that our goal was to achieve minimum backward reflections, and the rice-husk material, with its low dielectric constant, high loss factor, large attenuation per unit length, and ease of fabrication, provided a better opportunity to achieve that goal.
The performance of the absorbers was found to be better (lower) than −20 dB, and comparison of the results proved that the hollow design with 58% less weight was a good alternative to the use of solid absorbers.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Iqbal, Muhammad Nadeem& Malek, Mohd. Fareq& Lee, Yeng Seng& Zahid, Liyana& Mezan, Muhammad Shafiq. 2014. A Study of the Anechoic Performance of Rice Husk-Based, Geometrically Tapered, Hollow Absorbers. International Journal of Antennas and Propagation،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1036095
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Iqbal, Muhammad Nadeem…[et al.]. A Study of the Anechoic Performance of Rice Husk-Based, Geometrically Tapered, Hollow Absorbers. International Journal of Antennas and Propagation No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1036095
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Iqbal, Muhammad Nadeem& Malek, Mohd. Fareq& Lee, Yeng Seng& Zahid, Liyana& Mezan, Muhammad Shafiq. A Study of the Anechoic Performance of Rice Husk-Based, Geometrically Tapered, Hollow Absorbers. International Journal of Antennas and Propagation. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1036095
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1036095
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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