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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...
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...
Hexagonal base pyramid microwave absorber is the new design of microwave absorber. In this work, two sub-shapes are considered to compare it reflection loss performance. The shapes are hexagonal and truncated hexagonal base pyramid. Three sample of agricultural waste are used that is rice husk, rice straw and banana leaves. Before that, free space measurement technique is applied to define the dielectric...
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