HASANA,ZUMRATUL and Ramlan, Ramlan (2025) SINTESIS DAN KARAKTERISASI MATERIAL LaxCu(1-x)MnO3 SEBAGAI PENYERAP GELOMBANG MIKRO PADA JANGKAUAN FREKUENSI C-BAND DENGAN METODE MILLING Undergraduate thesis, Sriwijaya University.

HASANA, ZUMRATUL and Ramlan, Ramlan (2025) HASANA,ZUMRATUL and Ramlan, Ramlan (2025) SINTESIS DAN KARAKTERISASI MATERIAL LaxCu(1-x)MnO3 SEBAGAI PENYERAP GELOMBANG MIKRO PADA JANGKAUAN FREKUENSI C-BAND DENGAN METODE MILLING Undergraduate thesis, Sriwijaya University. Undergraduate thesis, Universitas Sriwijaya.

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Abstract

Electromagnetic radiation due to the development of telecommunication technology can interfere with electronic devices, so microwave-absorbing materials are a potential solution. This study synthesized and characterized LaxCu(1-x)MnO3 as a microwave absorber in the C-band frequency using a mechanical milling method with variations x = 0, 0.25, 0.50, 0.75, 1.0. Characterization using XRD, SEM, and VNA showed that the synthesized material had a multiphase structure with impurity due to Cu²⁺ substitution by La³⁺. SEM revealed non-uniform morphology with significant agglomeration, whereas VNA testing showed that absorption ability depends on x. Samples with x = 0 have the highest reflection loss of -7.06 dB at 6.05 GHz with an efficiency of 80.34%. These results show that La doping affects the structure and absorption effectiveness, with optimal performance at x = 0, making LaxCu(1-x)MnO3 a potential candidate as a microwave absorbing material.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	LaxCu(1-x)MnO3, Gelombang Mikro, Milling, C-band
Subjects:	Q Science > QC Physics > QC120-168.85 Descriptive and experimental mechanics Q Science > QC Physics > QC669-675.8 Electromagnetic theory
Divisions:	08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User:	Zumratul Hasana
Date Deposited:	21 Mar 2025 02:19
Last Modified:	21 Mar 2025 02:19
URI:	http://repository.unsri.ac.id/id/eprint/169653

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