(Co-Mn-Ti)取代M型钡六方铁氧体基微波吸收剂在X波段的表征

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 Pub Date : 1900-01-01 DOI:10.1109/ISAPE.2003.1276794

M. Meshram, N. K. Agrawal, B. Sinha, P. S. Misra

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引用次数: 4

摘要

本文介绍了六方铁氧体粉末[BaCo/sub 0.5/spl delta//Ti/sub 0.5/spl delta//Mn/sub 0.1/Fe(11.87-/spl delta/)O/sub 19/]在/spl delta/=1.6下作为微波吸收剂的设计、研制和表征。采用干磨法和烧结法制备了六方铁氧体粉末。将研制的铁氧体粉末(质量比60%)与环氧树脂混合制成吸波涂料。将该涂料涂在导电铝板上，研究线极化TE波在X波段的吸收特性。本文报道了不同涂层厚度下的实验结果和计算结果。结果表明，当涂层厚度为2mm时，其在8 ~ 12 GHz范围内具有最小吸收6.5 dB的宽带特性。这些涂料在军事应用中非常有用，如减少RCS，伪装目标和防止电磁干扰等。

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Characterization of (Co-Mn-Ti) substituted M type barium hexagonal ferrite based microwave absorber at X band

This paper present the design, development and characterization of the hexagonal ferrite powder [BaCo/sub 0.5/spl delta//Ti/sub 0.5/spl delta//Mn/sub 0.1/Fe(11.87-/spl delta/)O/sub 19/] at /spl delta/=1.6 as microwave absorber. The hexagonal ferrite powder has been developed by dry attrition and sintering procedure. The developed ferrite powder 60% by weight has been mixed in epoxy resin to form a microwave absorbing paint. This paint was coated on conducting aluminum sheet to study absorption characteristics of linearly polarized TE wave at X band. The experimental and computed results for different coating thickness have been reported. It has been found that it shows the broadband characteristics with minimum absorption of 6.5 dB from 8 to 12 GHz for a coating thickness of 2 mm. These paints are very useful in military application such as RCS reduction, camouflaging of the target and prevention of EMI etc.

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6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003

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