This paper presents a proof of concept of a wireless node for Direction of Arrival estimation in indoor scenarios and validates its performance. The proposed device is based on a System-on-Chip compliant with IEEE 802.15.4 standard communication protocol. The node is equipped with two Switched Beam Antennas arranged as a half-cube. Both these SBAs are inherently capable of radiating four uncorrelated beams by using a passive beamformer controlled by a 2 bits switch. The device is hence capable of 8 different beams spanning over 180°. An experimental validation confirm a mean error of 2.26° with a 90% coverage of 5.22°.
An IEEE 802.15.4 Wireless Half-Cubic Node Based on a Switched-Beam Antenna for Indoor Direction of Arrival Estimation / Cidronali A.; Collodi G.; Lucarelli M.; Maddio S.; Passafiume M.; Pelosi G.. - ELETTRONICO. - (2021), pp. 286-289. (Intervento presentato al convegno 17th European Radar Conference, EuRAD 2020 tenutosi a Utrecht, Netherlands nel 10-15 Jan. 2021) [10.1109/EuRAD48048.2021.00080].
An IEEE 802.15.4 Wireless Half-Cubic Node Based on a Switched-Beam Antenna for Indoor Direction of Arrival Estimation
Cidronali A.;Collodi G.;Lucarelli M.;Maddio S.;Passafiume M.;Pelosi G.
2021
Abstract
This paper presents a proof of concept of a wireless node for Direction of Arrival estimation in indoor scenarios and validates its performance. The proposed device is based on a System-on-Chip compliant with IEEE 802.15.4 standard communication protocol. The node is equipped with two Switched Beam Antennas arranged as a half-cube. Both these SBAs are inherently capable of radiating four uncorrelated beams by using a passive beamformer controlled by a 2 bits switch. The device is hence capable of 8 different beams spanning over 180°. An experimental validation confirm a mean error of 2.26° with a 90% coverage of 5.22°.
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