Low-cost direction-of-arrival measurements using multiplexed antenna switching

Start Page
34
End Page
37
Article Number
9037602
Citation
IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT: 9037602 (2020)
Contribution to Conference
IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT, 2020  
Publisher DOI
10.1109/WiSNeT46826.2020.9037602
Scopus ID
2-s2.0-85083038093
In this publication a method for direction-of-arrival measurements is introduced. It allows very low cost implementations. Instead of using multiple wide-band receivers with an antenna each, a single narrow-band receiver is used in combination with six antennas. The different antenna signals are time multiplexed to the receiver using an integrated 6-to-l RF switch. Signal processing allows to synchronize the corresponding signals to allow the calculation of the incident angle. As exact synchronization is not necessary, fast transitions between multiple frequencies are possible and therefore accuracy can be significantly increased.