Erfan Handoko, Iwan Sugihartono, Mangasi Alion Marpaung, Ucu Cahyana, Sovian Aritonang, Zulkarnain Jalil, Rusmono, Ahmad Taufiq, Sunaryono, Mudrik Alaydrus
In order to enhance a new microwave absorbing capabilities in the X-band frequency range, polycrystalline magnetic materials of BaFe12O19 barium hexaferrite were fabricated through conventional ceramic method. The Fe3O4 powder from iron sand were prepared through magnetic separation after milling process by using planetary ball mill. Microwave absorbing capabilities of multilayer absorbers, composed of BaFe12O19 barium hexaferrite and the Fe3O4 powder, with a total thickness of 10 mm, were investigated by a vector network analyzer (VNA) in the range of 8.2 – 12.4 GHz. According to transmission line theory, reflection of microwave radiations from multilayer magnetic materials is calculated. The reflection loss (RL) strongly depends on thickness of multilayer absorbers and showed an optimal RL. © 2019 Trans Tech Publications Ltd, Switzerland.
Dept of Physics, Universitas Negeri Jakarta, Jalan Rawamangun Muka, Jakarta, 13220, Indonesia; Dept of Chemistry, Universitas Negeri Jakarta, Jalan Rawamangun Muka, Jakarta, 13220, Indonesia; Dept. of Power Motion Technology, Indonesia Defense University, Jakarta, Indonesia; Dept. of Physics, Syiah Kuala University, Banda Aceh, Indonesia; Dept. of Electrical Engineering, Universitas Negeri Jakarta, Jalan Rawamangun Muka, Jakarta, 13220, Indonesia; Dept. of Physics, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Dept.of Electrical Engineering, Universitas Mercu Buana, Jalan Meruya Selatan No.1, Jakarta, Indonesia
