| 非连续体吸波平板的设计制备及吸波机理分析 |
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| 引用本文： | 段玉平,刘顺华,管洪涛,温斌,王桂芹.非连续体吸波平板的设计制备及吸波机理分析[J].复合材料学报,2006,23(3):37-43. |
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| 作者姓名： | 段玉平 刘顺华 管洪涛 温斌 王桂芹 |
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| 作者单位： | 大连理工大学,材料科学与工程学院,大连,116023 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 通过吸波体内导电媒质的“孤岛”化设计, 制备了单层非连续体平板吸波材料, 并分析了不同炭黑含量和不同试样厚度对吸波效能的影响以及电磁波的损耗机理。发现随着CB/ ABS 颗粒中炭黑含量和试样厚度的增加, 在8～18 GHz 频段内, 非连续体试样的反射损耗增加。当炭黑质量含量达到30 %时, 平板的反射损耗在8. 5～18 GHz 宽频范围内都超过- 10 dB , 在15～18 GHz 均高于- 15 dB。当试样厚度达到20 mm 时, 其反射损耗在8～18 GHz 频率范围内超过- 15 dB。结果表明, 非连续体试样较热压致密试样吸波效能有较大提高, 是很有潜力的吸波结构。
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| 关 键 词： | 吸波 非连续 平板 孤岛 散射 |
| 文章编号： | 1000-3851（2006）03-0037-07 |
| 收稿时间： | 07 1 2005 12:00AM |
| 修稿时间： | 2005-07-012005-09-27 |
Design and theory analysis of a discrete slab absorber |
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| DUAN Yuping,LIU Shunhua,GUAN Hongtao,WEN Bin,WANG Guiqin.Design and theory analysis of a discrete slab absorber[J].Acta Materiae Compositae Sinica,2006,23(3):37-43. |
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| Authors: | DUAN Yuping LIU Shunhua GUAN Hongtao WEN Bin WANG Guiqin |
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| Affiliation: | School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China |
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| Abstract: | A single-layer absorber st ructure containing randomly dist ributed discrete macro-inclusions was designedby isolating the conductive medium in the absorbing mat rix , and the effects of carbon black (CB) content and samplethickness on the reflection loss as well as microwave loss mechanism were analyzed. The test results show that ,with increasing the carbon black content of the discrete particles in the slab absorber , the reflection loss increases ina f requency range of 8～18 GHz. When the mass f raction of CB get s to 30 % , the reflection loss was above - 10 dBin 8. 5～18 GHz and above - 15 dB in 15～18 GHz. Especially , when the thickness of the discrete slab absorberreaches 20 mm , the reflection loss was above - 15 dB in 8～18 GHz. The result s indicate that the discrete st ructureexhibit s the optimum absorptivity in 8～18 GHz compared with that of the compact sample , and it is a potentialexcellent absorber. |
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| Keywords: | microwave absorption discrete single-layer slab isolated scattering |
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