Series-fed planar dipole array antenna

A planar dipole array antenna operating around 2.4 GHz is presented. The array has five dipole elements that are excited in phase to reduce the elevation beamwidth for reducing undesired multipath signals and increase gain. The array is fed from the bottom with a single coaxial connector which sequentially excites all array elements in phase via a twin wire transmission line. The antenna is just 8mm wide and 1.27mm thick.