DefinePK

Abstract

Green technology wedge microwave absorber is design is done by using the rice husk as the main material. This material effect to reduce the size and effect the environment friendly. Beside that, the shape of microwave absorber is the important parameter that affects the performance of RF absorbers. In this work, different dimension of wedges are discussed to compare the reflection loss or S11 result of wedge microwave absorber. The frequencies range that consider in this works starting at 0.01 GHz to 10 GHz. The design is started with the basic design (Design A) of wedge microwave absorber is contains two wedge with height = 15 cm. For Design B, a wedge microwave absorber with varies dimension of centre absorber height from 6 cm to 14 cm. This microwave absorber is design in CST Microwave Studio using agricultural waste of rice husk with dielectric constant of 2.9.