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In this work, rice husk material from paddy had been used as the main material to fabricate the truncated pyramidal microwave absorber. To increase the reflection loss performance, square flower split ring resonator (SF-SRR) had been incorporated onto the rice husk truncated pyramidal microwave absorber. This SF-SRR structure had been located at the top part of the truncated pyramidal microwave absorber...
Shape is the main parameters that affect the performance of the pyramidal microwave absorber. The pyramidal shape microwave absorber is the most installed absorber in the anechoic chamber. Double pyramid is the hybrid shaped that exist by combining two pieces of normal pyramidal shape. In this paper, four types of double pyramidal shape are used to design pyramidal microwave absorber in simulation...
Sugar cane bagasse as is potential agricultural waste to produce an alternative and beneficial product for any suitable application such as pyramidal microwave absorber for anechoic chamber testing application. In this work, the dielectric properties (dielectric constant and tangent loss) of the sugar cane baggase had been measured using the dielectric probe measurement. The sugar can bagasse pyramidal...
Abandoned agricultural waste pose a risk to the environmental and public health. The polyurethane and polystyrene material for designing pyramidal microwave absorber are expensive and not environmental friendly. Tropical crop residue has potential to be used in the electromagnetic testing area. Nowadays, electromagnetic absorbing materials have been increasingly important in ensuring successful Radio...
In designing a microwave absorber for anechoic chamber, there are many condition can affect the performance of microwave absorber. In this work, four conditions are discussed to compare the reflectivity or S11 of the pyramidal microwave absorber. The conditions are different signal source position, areas, angle, and lastly the distance between signal source and pyramidal microwave absorber. These...
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