This work presents the design, fabrication and experimental characterization of an Acoustic Leaky Wave Antenna (ALWA) using low-cost materials. The antenna employs a single transducer coupled to a dispersive structure, allowing it to emit or receive acoustic energy from different directions depending on the operating frequency. It is designed to radiate in backward, forward and sideward directions, allowing versatile control of the acoustic beam. Finite element method (FEM) simulations were key to the geometry design and material selection, with experimental tests validating these results. Experiments confirmed the accuracy of the simulations and demonstrated the antenna’s ability to scan the acoustic beam, providing a compact, high-performance solution suitable for technologies such as SONAR.