Monopole array with parasitic elements and corporate-feed network

A printed 1×5 monopole array is designed and experimentally characterized. Only two monopoles are active and fed by means of a corporate network, whereas the remaining three monopoles are parasitic and fed by currents from the ground plane. In presence of an additional metallic plane acting as a reflector, the measured 10 dB gain and the 700 MHz bandwidth make the proposed antenna suitable for point-to-point links and for radar sensors.