Preliminary study of palm oil biomass cement based microwave absorber

In order to deal with more and more serious problem of microwave radiation pollution, palm oil biomass cement based microwave absorber is needed in order to prevent the buildings from the microwave radiation coming from telecommunication towers. This paper describes the capability of palm oil biomass waste from palm oil fuel ash (POFA) as an absorbing material in cement based microwave absorber that will affects absorption performance. The simulation using CST Microwave Studio Suite used to predict the design of palm oil biomass cement based microwave absorber performance. The absorption performance for palm oil biomass cement based microwave absorber will be investigated using free space arch reflectivity measurement method at frequency range 8 to 12 GHz. The study includes the comparison on absorption performance of palm oil biomass cement based microwave absorber with commercial flat microwave absorber and commercial concrete brick. This study showed that the replacement of 20% POFA has a good potential to absorb the microwave signal.