Collinear Wideband-dipoles Antenna Array with the Omnidirectional Radiation Pattern in the Azimuth Plane

Results of numerical and experimental investigations of the wideband collinear antenna array with the omnidirectional radiation pattern in the azimuth plane are presented. Antenna array consists of two planar wideband dipoles operating in the 395...625 MHz band upon a criteria of VSWR<;2. Antenna array gain ranges from 3.5 to 5.5 dB. The key feature of the presented antenna is feeding network combined with the radiating elements. As a result, its low cost and technological effectiveness are achieved.