Low Profile Planar Multi-Sector Antenna Array for Drone Swarm Application

This paper presents a compact planar switched-beam multi-sector antenna array optimized for drone swarm applications, operating within the 2.1 GHz–2.6 GHz frequency range. The proposed antenna array ensures complete azimuthal plane coverage through a directional radiation pattern while maintaining a compact form factor. Additionally, the isolation between adjacent antenna elements exceeds 15 dB in the operating band, minimizing mutual coupling effects. The design is validated through both simulations and experimental measurements, demonstrating excellent impedance matching and radiation performance. The proposed antenna is a promising solution for drone-based communication systems, offering efficient radiation characteristics with minimal structural impact.