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Mikrowellenabsorptionseigenschaften in Ba-Co-Ti- und Sr-Mn-Ti-Hexaferriten
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ISBN10: 6208970601
ISBN13: 9786208970604
Publisher: Verlag Unser Wissen
Published: Jun 18 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: German
ISBN13: 9786208970604
Publisher: Verlag Unser Wissen
Published: Jun 18 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: German
Die Untersuchung der Mikrowellenabsorptionseigenschaften für M-Typ-Ba-Co-Ti- und Sr-Mn-Ti-Hexagonalferrite erfolgt als Funktion der Substitution und Frequenz im X-Band. Die Messung der Absorptionseigenschaften erfolgte mit einem Absorbing Testing Device (ATD) und zur Bewertung der Absorption wurde das Viertelwellenlängen-Kriterium herangezogen. In BaCoxTixFe(12-2x)O19-Ferrit weist x=0,9 bei 10,47 GHz einen maximalen RL-Wert von -31,94 dB auf. Die Zusammensetzungen x=0,1, 0,5, 0,7 und 0,9 erfüllen das Viertelwellenlängen-Kriterium (QWC), indem sie die theoretische Dicke von 3,5 mm, 3,2 mm, 3,2 mm und 3,2 mm mit der tatsächlichen Dicke von 3,3 mm, 3,4 mm, 3,2 mm und 3,3 mm bei den Anpassungsfrequenzen 10, 49 GHz, 9,27 GHz, 10,47 GHz bzw. 10,47 GHz. In SrMnxTixFe(12-2x)O19-Ferrit weist die Zusammensetzung x=0,5 gute elektromagnetische Abschirmungseigenschaften mit einer reflektierten Leistung von 96,94 % bei 8,27 GHz auf. Die Zusammensetzungen x=2,0 und x=1,5 zeigen einen maximalen RL von -14,68 dB und -12,16 dB bei 12 GHz. Die Zusammensetzung x=1,0 zeigt eine Absorptionsleistung von mehr als 90 % bei 9,53 GHz. Die Zusammensetzungen x= 1,0, 1,5 und 2,0 mit einer tatsächlichen Dicke von 3,8, 3,4 und 2,3 mm erfüllen QWC (3,7, 3,3 und 2,3 mm) bei 12 GHz.
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