The effect of human body on indoor radio wave propagation at 57–64 GHz

Seven GHz bandwidth around 60 GHz frequencies has been released to develop high- rate short-range wireless data communication for a small area such as an office or a research lab. A regular propagation phenomenon in such environment is the shadowing of the Line-of-Sight (LOS) link caused by moving people. One research shows this phenomenon disconnects the LOS link for 2% of the time; however, the blockage ratio could be higher depending on the number of people, geometry of the room, and transmitter-receiver (TX-RX) configuration. Moreover, it must be determined that how much attenuation is caused by a human body obscuring the LOS path. In this paper first the accurate ray-tracing analysis is used to answer this question. Next, a test set-up is developed to verify the accuracy of the simulation results by field tests.