Abstract:

To meet the needs of the high-power microwave systems of the antenna,the design of an overlay of the 15.9~[JP4]21.8 GHz band multimode horn antenna is proposed and its high power performance is studied.Simulation results show that the horn antenna has an in-band VSWR less than 1.2 and excellent radiation characteristics.E and H patterns has good feed equal at 16.3~20.8 GHz within a range of 20 dB,and breakdown does not appear with a speaker output power up to 526 MW.

Key words: high power microwave;conical horn;multi-modes horn