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Calculation of complex permeability and permittivity on Lanthanum barium manganite materials at X-band frequency

Hercuadi, Asep Yudi and Armi, Nasrullah and Sudrajat, Nanang and Adi, Wisnu Ari (2015) Calculation of complex permeability and permittivity on Lanthanum barium manganite materials at X-band frequency. Antennas and Propagation (APCAP), 2015 IEEE 4th Asia-Pacific Conference on. pp. 493-496.

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Abstract

The synthesis and electromagnetic wave absorbing characterization of La 1-y Ba y MnO 3 (y = 0-1, 0) magnetic material through a mechanical milling process have been performed. The La 1-y Ba y MnO 3 (y = 0-1, 0) magnetic material was made from La 2 O 3 , BaCO 3 , dan MnCO 3 materials. The mix was milled for 10 hours and then sintered at 1000°C for 10 hours. The results of the the hysteresis curve indicated that that La 1-y Ba y MnO 3 (y = 0-1, 0) samples are anti-ferromagnetic, and after a barium ion substituted system, this material undergoes a magnetic phase transformation becomes ferromagnetic. At y = 0, the characteristic impedance as a function of frequency is worth more than 2000 ohms, and when y = 0.2, Z characteristics began to change falls below 2000 ohms. Test results obtained by absorption of microwaves that have occurred absorption of electromagnetic waves in the frequency range between 9-15 GHz, frequency absorption peak is ~7 dB at 14.4 GHz. At the peak frequency of the electromagnetic wave absorption were calculated magnitude reaches 50% with a thickness of 1.5 mm. We concluded that the La 1-y Ba y MnO 3 (y = 0-1,0) magnetic material has been made successfully and able to absorb a microwave in the frequency range 9-15 GHz.

Item Type: Article
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Struktur dan Bahan Maju > Teknik Sintesis Bahan Maju
Divisions: Pusat Sains dan Teknologi Bahan Maju
Depositing User: EDITOR PSTBM BATAN
Date Deposited: 29 Nov 2018 01:50
Last Modified: 30 Nov 2018 01:18
URI: http://repo-nkm.batan.go.id/id/eprint/5715

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