Design of a microstrip antenna array with polarization diversity for DoA application

This paper presents the design, manufacture and tests of a microstrip antenna array with polarization diversity for radiofrequency sources tracking. The designed array is a composite part of a system based on the MUSIC (Multiple Signal Classification) algorithm, showing the importance of considering the use of polarization diversity in order to obtain a reliable solution of Direction of Arrival (DoA) of the incoming RF signal. The array performance is verified by means of some tests using a manufactured prototype.