Four-Beam Phased Antenna Array Based on Multi-Element End-Fed Dipole-Like Radiator

The paper aimed on the development of a fourbeam printed phased antenna array employing a Butler matrix for radiation pattern formation and end-fed multi-element dipole-like radiators. Simulation results using “CST Studio Suite” and experimental measurements validate the authors’ hypothesis about the improvement in gain and input impedance through the parallel connection of multiple radiators with end feeds of varying lengths. Additionally, it presents the design and analysis of a Butler matrix as a radiation pattern forming unit. The design, electrodynamic simulation, and experimental verification of the antenna array are described in detail, and its broadband performance is highlighted. The comparative analysis of electrodynamic simulation results with experimental result in an anechoic chamber provides a comprehensive overview of the design and performance of the proposed four-beam phased antenna array, recommending its application in modern microwave circuits for communication, satellite navigation, and radar systems. Future research aims to improve the technical and mass-size properties of the components.