标题： 毫米波在73 GHz下的人体遮挡，使用简单的双刀刃绕射模型及对定向天线的扩展 显示英文标题

标题： Millimeter-Wave Human Blockage at 73 GHz with a Simple Double Knife-Edge Diffraction Model and Extension for Directional Antennas

摘要： 本文介绍了在室内环境中，对于点对点链路，在发射器和接收器之间相距5米的情况下，进行的73 GHz人体阻挡测量，其中人体以大约1 m/s的速度垂直于发射器和接收器之间的连线行走，并在它们之间不同距离处进行。 该实验测量了在使用定向天线的毫米波无线电通信中，移动人体体的阴影效应。 测量是使用一个500兆芯片每秒的宽带相关器信道探测器进行的，其第一零到零射频带宽为1 GHz。 结果表明，高阴影衰减不仅仅是由于人体阻挡，还由于所用天线的静态定向特性，这导致在毫米波存在障碍物和阻挡时需要相控阵天线来切换波束方向。 提供了一个基于双刀刃衍射（DKED）模型的人体阻挡简单模型，其中人体被近似为具有无限垂直高度的矩形屏幕，类似于METIS项目给出的人体阻挡模型。 显示英文摘要

摘要： This paper presents 73 GHz human blockage measurements for a point-to-point link with a 5 m transmitter-receiver separation distance in an indoor environment, with a human that walked at a speed of approximately 1 m/s at a perpendicular orientation to the line between the transmitter and receiver, at various distances between them. The experiment measures the shadowing effect of a moving human body when using directional antennas at the transmitter and receiver for millimeter-wave radio communications. The measurements were conducted using a 500 Megachips-per-second wideband correlator channel sounder with a 1 GHz first null-to-null RF bandwidth. Results indicate high shadowing attenuation is not just due to the human blocker but also is due to the static directional nature of the antennas used, leading to the need for phased-array antennas to switch beam directions in the presence of obstructions and blockages at millimeter-waves. A simple model for human blockage is provided based on the double knife-edge diffraction (DKED) model where humans are approximated by a rectangular screen with infinite vertical height, similar to the human blockage model given by the METIS project.