| 用于ETC系统的羰基铁粉二氧化钛复合吸波材料 |
| |
| 引用本文： | 王舒阳,颜铄清,李启凡,陈中艳,冯则坤.用于ETC系统的羰基铁粉二氧化钛复合吸波材料[J].金属功能材料,2014(1):21-26. |
| |
| 作者姓名： | 王舒阳 颜铄清 李启凡 陈中艳 冯则坤 |
| |
| 作者单位： | 华中科技大学光学与电子信息学院,湖北武汉430074 |
| |
| 摘 要： | 将羰基铁粉和二氧化钛与橡胶混合,采用压延法制备了应用在工作频率为5.8GHz的电子不停车收费系统(ETC)中的吸波材料,运用矢量网络分析仪测试了材料的复磁导率与复介电常数在2.0~18.0GHz范围的频谱特性,并在微波暗室内测试了材料的反射率。结果表明,Fe与TiO2在7∶3质量比混合下性能最佳,实验探讨了样品厚度对材料吸波特性的影响,确定厚度在1.7mm时,材料吸收峰值位于ETC所工作的5.8GHz频率,实验测试了材料在电磁波从不同角度入射条件下的反射率,垂直入射情况下效果最佳,可达-30dB。
|
| 关 键 词： | ETC 吸波材料 羰基铁粉 二氧化钛 |
Composite Microwave Absorber for ETC Using Fe and TiO2 |
| |
| WANG Shu-yang,YAN Shuo-qing,LI Qi-fan,CHEN Zhong-yan,FENG Ze-kun.Composite Microwave Absorber for ETC Using Fe and TiO2[J].Metallic Functional Materials,2014(1):21-26. |
| |
| Authors: | WANG Shu-yang YAN Shuo-qing LI Qi-fan CHEN Zhong-yan FENG Ze-kun |
| |
| Affiliation: | (School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei,China) |
| |
| Abstract: | A microwave absorber for use in electric toll collection（ETC） system, having a central frequency of 5.8 GHz is fabricated using Fe （iron made from carbonyl iron） and TiO2 mixed with rubber. The spectrum of complex permeability and permittivity and the reflectivity in the anechoic chamber of the composite sample were measured within 2.0--18.0 GHz. The results show that optimum composition ratio of absorbing materials was Fe ： TiO2 = 7 ： 3 and confirm that the peak of reflectivity match the central frequency at the thickness of 1.7 mm. the reflectivity for different incident angles were also tested,the lowest value can be less than --30 dB when normal incidence. |
| |
| Keywords: | ETC microwave absorber Fe TiO2 |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
