Design and Simulation of a Ridge Horn Antenna

The horn antenna has large bandwidth, superior directionality, easy design and processing, and high gain. It has become an ultra-wideband antenna that can be practically applied in many occasions. The ridged horn antenna has an ultra-wideband, wide-band, uniform pattern. Moreover, it has a higher gain and is widely used as a feed of a high gain antenna or an array element of an array antenna. This paper introduces the structural characteristics of the double-ridged horn antenna from many aspects, and designs a double-ridged horn antenna. And through electromagnetic simulation of HFSS, the results show that the double-ridged horn antenna has good directivity in the frequency range of 20GHz similar to 26GHz. The results showed that the gain reaches 18 dB at 24 GHz, and the main flap of the three-dimensional gain pattern is not cracked.