Design and simulation of a kind of Ku-band waveguide horn antenna array with HFSS

The traditional satellite ground communication system is generally of parabolic antenna in most cases, but this kind of antenna has the disadvantages of poor flexibility and large volume; while microarray antenna has the shortcomings of large loss and small gain. In this paper, a novel waveguide horn antenna is designed. The radiation layer was is conductor with a octagonal hole in the center, the feeding layer is of double orthogonal Microstrip-feed plane to achieve bipolaron. The unit antenna size is only 21mm×21 mm ×2.2mm. Gain of 8×8 array was 26.7dB. The antenna array has a simple structure, small volume and high gain, particularly suitable for using as a satellite ground communications system antenna.