Corrugated Sectorial Leaky-Wave Antenna for DoA applications

The beam-scanning capability with frequency of leaky-wave antennas facilitates Direction-of-Arrival (DoA) estimation by offering less complex solutions than array-based methods. In this work, a corrugated sectorial LWA is analyzed for DoA application. In particular, an analytical model and the Adjacent-Zeros Method (AZM) are used to increase the dispersion of the antenna and thus reduce the required frequency to achieve the desired beam-scanning. Using the Multiple Signal Classification (MUSIC) algorithm the correct DoA estimation is demonstrated, and the origin of ambiguities due to the symmetry of the antenna is discussed.