Design of Corrugated Horn Antenna for Electronic Support Measure Application

In this paper, a simple and small dimension circular corrugated horn antenna at C-band frequency with high gain performance is designed. This antenna is designed for ESM (Electronic Support Measure) application with antenna dimensions is 43 x 155 mm using copper as the antenna material. The circular corrugated horn antenna is designed and simulated using CST Microwave Studio Suite software. The simulation shows results with gain 15.91 dBi, bandwidth 4.3 GHz and linear vertical polarization. This antenna has beamwidth of 45.7° at H-field and 38.9° at E-field.