关于45 GHz毫米波对矩形阻挡物的绕射研究

发布时间：2018-01-16 08:02

本文关键词：关于45 GHz毫米波对矩形阻挡物的绕射研究　出处：《北京邮电大学学报》2017年04期 　论文类型：期刊论文

【摘要】：基于45 GHz毫米波室内通信测量对木板、镜子以及白铁板的阻挡绕射特性进行了研究.根据阻挡物材料的不同,分别提出三射线和四射线阻挡绕射模型.对12 mm厚的木板、6 mm厚的镜子以及0.35 mm厚的白铁板进行了矩形阻挡绕射测量实验.实验结果表明,在矩形木板阻挡下45 GHz毫米波的平均传输衰减系数约为-4.28 d B,其衰减测量结果与提出的四射线模型仿真结果平均误差为-0.02 d B.在0.35 mm厚的矩形白铁板阻挡下,45 GHz毫米波的平均传输衰减系数约为-18.2 d B.在镜子远离天线的情况下,面对发射天线时的平均传输衰减比背对发射天线时大1~2 d B,而在镜子靠近天线的情况下,其面对发射天线时测量的结果与白铁板阻挡下的衰减类似.
[Abstract]:Based on 45 GHz millimeter wave indoor communication measurement, the diffraction characteristics of board, mirror and white iron plate are studied. Three ray and four ray diffraction models are proposed for 12 mm thick planks. The rectangular barrier diffraction measurements were carried out in a mirror with a thickness of 6 mm and a white iron plate with a thickness of 0.35 mm. The average propagation attenuation coefficient of 45 GHz millimeter wave is about -4.28 dB under rectangular plank blocking. The average error between the results of attenuation measurement and the simulation results of the proposed four-ray model is -0.02 dB, which is blocked by a rectangular white iron plate with a thickness of 0.35 mm. The average transmission attenuation coefficient of 45 GHz millimeter-wave is about -18.2 dB, when the mirror is far from the antenna. The average transmission attenuation in the face of the transmitting antenna is 1 ~ 2 dB higher than that in the back-pair antenna. When the mirror is close to the antenna, the results measured in the face of the transmitting antenna are similar to the attenuation under the block of white iron plate.
【作者单位】：华北电力大学电子与通信工程系;
【基金】：国家自然科学基金项目(61377088,61501185) 北京市自然科学基金项目(4164101) 中央高校基本科研业务费专项资金项目(2015MS101)
【分类号】：TN928
【正文快照】： 目前移动通信有限的频带已经制约了通信速率的进一步提高.寻求新的频谱资源使蜂窝通信系统的容量在未来十年增长1 000倍[1-2],达到吉比(Gb)高速数据通信的目标,是下一代移动通信要解决的主要问题[3].毫米波频段有丰富的频率资源可供开发利用,其百分之一的相对带宽即可提供上千

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