WIDE BEAM ANTENNA WITH THREE TRANSMITTING LINEAR ARRAYS AND FOUR RECEIVING LINEAR ARRAYS

摘要

A wide beam antenna with three transmitting linear arrays and four receiving linear arrays at least comprises a dielectric substrate and a metal ground element provided at one side of the dielectric substrate. The other side of the dielectric substrate is provided with a transmitting unit and a receiving unit. The transmitting unit comprises three transmitting linear arrays. Two parasitic linear arrays are provided at two sides of each transmitting linear array. The three transmitting linear arrays spaced at equal intervals are arranged in a lateral direction of the dielectric substrate. The receiving unit comprises four receiving linear arrays, and two parasitic linear arrays respectively provided at two sides of the multiple receiving linear arrays. The four receiving linear arrays spaced at equal intervals are arranged in the lateral direction of the dielectric substrate. All the transmitting linear arrays and receiving linear arrays are connected to a feed network. The invention aims to expand a beam so as to improve the angular resolution of radars.