Test of microwave absorber of rice husk and burned rice husk

摘要

This paper studies about the performance test against rice husk and burned rice husk material as a microwave absorber material. The nature of this microwave absorber is tested in frequency of 2 GHz 4 GHz with the method of free space measurement to obtain the value of reflection loss. This reflection loss value is used to find the absorption nature of the material. By finding out the absorption value amount, we can find the material permittivity value. This permittivity value is further used to do the simulation. The software used for the simulation is CST. The simulation and measuring results show a relatively small difference.