Sphere digital array antenna based on S frequency channel

The utility model discloses a sphere digital array antenna based on S frequency channel includes spherical antenna, spherical antenna's surperficial align to grid is provided with 31 antenna element,antenna element adopts back of the body chamber cross microstrip patch antenna, through the merit subnetwork with 90 move the phase retardation and carry out the feed respectively to two distributingpoints of paster alternately, realizes the circular polarization characteristic at wide bandwidth angle, after antenna element received the signal, the direct end through the coupler got into the lownoise and puts and down -conversion module, the low noise put with the received signal amplify, filtering, produce 200MHz bandwidth intermediate frequency signal, get into digital signal processor through AD sampling, digital mixing, after extracting and handle the received signal, export required signal at last. Compare with phased array antenna because the symmetry of sphere, can realize covering the airspace in the direc