Complex Permittivity, Permeability and Microwave Absorption Studies of Double Layer Magnetic Absorbers Based on BaFe₁₂O₁₉ and BaFe₁₀CoZnO₁₉

Abstract:

Microwave absorption properties of double layer magnetic absorbers based on BaFe₁₂O₁₉ (BFO) and BaFe₁₀CoZnO₁₉ (BFCZO) have been investigated in X-band (8.2–12.4 GHz) frequencies. The BFO and BFCZO were prepared by using a solid state reaction process. The crystalline structures were investigated by X-ray diffraction (XRD), The complex permittivity and permeability are determined using Vector Network Analyzer (VNA) in a range from 8.2 GHz to 12.4 GHz. The double layer magnetic absorbers, composed of the BFO as matching layer and the BFCZO as absorption layer, with a total thickness of 5 mm, showed an effective reflection loss (RL) an effective absorbing bandwidth below –5 dB.

• Periodical: Materials Science Forum (Volume 966)
• Pages: 302-307
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.966.302
• Online since: August 2019
• Authors: Erfan Handoko, Iwan Sugihartono, Mangasi Alion Marpaung, Ucu Cahyana, Sovian Aritonang, Zulkarnain Jalil, Rusmono Rusmono, Ahmad Taufiq, Sunaryono Sunaryono, Maulana Randa, Mudrik Alaydrus
• Keywords: BaFe₁₀CoZnO₁₉ (BFCZO), BaFe₁₂O₁₉ (BFO), Double Layer, Reflection Loss

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