Ahmad Takiyuddin Abdullah's research while affiliated with University of Kuala Lumpur and other places

Publications (4)

Conference Paper
This paper investigates the capability of oil palm ash paint as green-absorbing material in a way to absorb microwave radiations. The paint is coated on three different wall materials which are elephant board, plywood and cement. The absorb performance of the paint is observed using the simulation result of Computer Simulation Technology (CST) Micr...
Article
The most important part to be highlighted in developing a reliable microwave absorber is the material used to fabricate the absorber. As an alternative in managing the increase of the oil palm residues throughout the country, this study is focusing on developing a microwave absorber coating using oil palm fly ash. The software uses for design and s...
Conference Paper
The investigation of oil palm ash microwave absorbers involves the design, simulation and fabrication of an effective broadband frequency for anechoic chamber. The resistive and magnetic materials in the oil palm ash compose its potential to be used as microwave absorbing materials. These oil palm ash absorbers are simulated using CST Microwave Stu...
Article
Full-text available
This paper describes the design and method in developing a low cost, reliable and good performance microwave absorber for the application in anechoic chamber room measurement. Theoretically, the absorber is designed and to be functioning at a frequency range from 1.5GHz to 15GHz (in pyramidal-shaped). However, due to the equipment limitation for me...

Citations

... The measurement setup comprises two horn antennas installed facing each other, absorbers to be measured and measurement software (Agilent 85071E) [10]. The two antennas are positioned in a constant distance from the testing material on a reflective metal plate below. ...
... Absorbers have several shapes such as flat, pyramidal and wedges, but the most ideal shape of microwave absorber is pyramidal absorber [3]. The excellent performance of pyramidal-shaped absorber is primarily the result of the multiple reflections that occur between the pyramids [4]. Microwave absorbers can be classified into three types which are magnetic absorbers, dielectric absorbers and hybrid absorbers (the combination of magnetic and dielectric absorbers) [5]. ...
... Biowaste such as bagasse is a very efficient material for microwave absorption and is reported better than rice husks due to its more carbon content. Noordin et al. (2012) reported the fabrication of microwave absorber using oil palm ash. The chemical composition of oil palm ash consists of CaO, MgO, SO 3 , K 2 O, SiO 2 , Fe 2 O 3 and CO 2 . ...