Innovative High-Gain Corrugated Horn Antenna Combining Horizontal and Vertical Corrugations

An innovative kind of corrugated horn antenna is proposed within this letter, the profile of the horn is based on the combination of horizontal and vertical corrugations. The main advantage of these profiles is the possibility of combining high-gain with short profiles, meanwhile keeping the main performances of the conventional corrugated horns. Besides, this horn results in an easier manufacture process due to their smaller size and eliminates the difficulties to manufacture the deep lambda/2 corrugations at the throat of classical profiles. An example of a horn with 24 dB gain, -35 dB maximum crosspolar, and sidelobe levels and 20% bandwidth has been designed, fabricated and characterized. These horns are a very promising alternative for future earth and space applications