Creation of a Vivaldi-Based Circular Antenna Array for Broadband Relay Channels

Introduction . Unmanned aerial vehicles (UAVs) are rapidly gaining in popularity. The UVA development requires active antenna systems capable of forming a narrow beam the main lobe radiation pattern. Although numerous studies have considered specialized arrays with wide range scanning angles, location such on UAVs remains under-investigated. for will enable creation secure relay broadband channel few repeaters. Aim Development array possibility setting pattern any direction azimuthal plane, use tasks. Materials and methods. An emitter model circular its basis was developed Ansys HFSS electromagnetic modeling package. Results dependence directional coefficient gain an consisting 8 16 elements shown. Voltage standing-wave ratio dependences directivity patterns that satisfy conditions retransmission wide-frequency band using were obtained. Recommendations number ensure maximum (directivity) formulated. Conclusion Technical solutions can be used proposed. system further improved by optimizing cylindrical or hemispherical array.