Design of an Electromagnetic Pulse Radiation Antenna

Aiming at the problem of poor low-frequency radiation performance of TEM horn antenna, the simulation optimization design is carried out. The low frequency compensation method of end loading resistance and back loading resistance is analyzed by using time domain analysis method, and the structural parameters such as the size of the TEM horn antenna and the top angle of the plate are optimized; the peak field strength and pulse width of the radiation field are improved by using the end crimping structure. The simulation results are verified by the measurement of the new antenna. The results show that the loading resistance can effectively reduce the reflection, and the peak field strength and pulse width of the back loading resistance are higher than that of the end loading resistance; the radiation performance of the antenna can be improved by appropriately increasing the antenna length, the top angle of the plate and the angle between the plates.