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| 毫米波在带电沙粒的传播特性研究 | |
| 引用本文： | 董群锋,许家栋,李应乐.毫米波在带电沙粒的传播特性研究[J].装备环境工程,2009,6(5):1-3. |
| 作者姓名： | 董群锋 许家栋 李应乐 |
| 作者单位： | 1. 西北工业大学,电子信息学院,西安,710072;咸阳师范学院,物理系,陕西,咸阳,712000 2. 西北工业大学,电子信息学院,西安,710072 3. 咸阳师范学院,物理系,陕西,咸阳,712000 |
| 基金项目： | 国家自然科学基金资助项目，咸阳师范学院科研基金项目 |
| 摘 要： | 沙粒带电是以表面部分区域带电的方式存在，应用沙粒的等效介电常数模型，对沙尘暴引起毫米波的衰减和相移进行了分析和仿真计算。结果表明，频率小于35GHz时，沙尘对电磁波的衰减影响较小；当水含量增大时，衰减会随之显著增加。沙粒带电量越大，沙尘引起的相移频率随之而增大。 |
| 关 键 词： | 介电常数 含水量 沙尘衰减 相移 |
Study of Propagation Characteristics of Millimeter Wave in Sand Particle with Electric Charge |
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| DONG Qun-feng,XU Jia-dong,LI Ying-le.Study of Propagation Characteristics of Millimeter Wave in Sand Particle with Electric Charge[J].Equipment Environmental Engineering,2009,6(5):1-3. | |
| Authors: | DONG Qun-feng XU Jia-dong LI Ying-le |
| Institution: | DONG Qun-feng, XU Jia-dong, LI Ying-le (1. Northwestern Polytechnic University, Xi＇an 710072, China; 2. Xianyang Normal University, Xianyang 712000, China) |
| Abstract: | According to having part electric charge of sand particles,the millimeter wave attenuation and phase shift induced by sand and dust storm of different water contents were analyzed and simulated by equivalent permittivity method.It was shown that the attenuation evidently increases with water content in sand particles increasing;generally,the change of attenuation is small for the electromagnetic wave frequency below 35 GHz;but the change of the influence is obvious with the change of water content;when the ... |
| Keywords: | dielectric constant water content sand and dust attenuation phase shift |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |