An embedded device for direction-of-arrival estimation in BLE networks based on a reconfigurable antenna

This paper presents the use of a reconfigurable antenna to estimate packets arrival direction in a Bluetooth Low Energy (BLE) network. The nRF52840 chip was used to control the antenna and receive packets. It has a builtin 2.4 GHz transceiver and supports the Bluetooth standard. This paper also presents the results of the direction estimation tests.This paper is a result of the Arrowhead Tools project (www.arrowhead.eu) which has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 826452. The JU receives support from the European Union's Horizon 2020 research and innovation programme and Sweden, Austria, Spain, Poland, Germany, Italy, Czech Republic, Netherlands, Belgium, Latvia, Romania, France, Hungary, Portugal, Finland, Turkey, Norway, Switzerland. The document reflects only the authors' view and the Commission is not responsible for any use that may be made of the information it contains