IEEE 802.15.4z UWB Angle of Departure Tag Design for Indoor Positioning

초록

Ultra-WideBand (UWB) is becoming a major indoor positioning technology. UWB indoor positioning technology initially used only distance information, but recently uses direction information using an antenna array along with distance information. Until now, most studies using direction information in UWB have been Angle of Arrival (AoA) using the phase difference of incident wave between antennas. However, AoA is not suitable for positioning applications such as indoor navigation because of angle changes that occurs when the UWB anchor is moved. These applications require the use of Angle of Departure (AoD) concept to measure the angle of departure of a fixed UWB device. In this paper, a UWB AoD tag is designed and implemented using two switched array antennas. The implemented UWB AoD tag uses latest IEEE 802.15.4z standard. We have successfully implemented an indoor positioning system using these fixed AoD tag. © 2023 European Microwave Association (EuMA).

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