In order to meet the requirements of intelligent electronic system for wide-lobe,wide angle scanning and low profile antennas,a one-dimensional phased array antenna working in Ka-band is proposed.The antenna radiation unit mainly adopts the form of electromagnetic dipole,and a grounded square ring is surrounded the electronic dipole to im-prove the coupling effect of the H-plane,and the E-plane beamwidth of the antenna radiation unit is greatly broadened by loading two columns of AMC structure on both sides of the antenna radiation unit.Compared with the previous antenna,the antenna has the advantages of wide beam width,low profile and broadband sweeping angle.The antenna prototype is composed of a low-profile array,a driver module and an aluminum alloy support structure,among which the radiation ar-ray is composed of 16 units to form a linear array.The reflection coefficient of the antenna radiating unit is less than-10 dB in the bandwidth of 2 GHz,the E-plane pattern has a 3 dB beamwidth of 110°,and the antenna array has good scanning characteristics in the±60°scanning angle.
万方数据
维普
