Abstract: A new ultra-wideband radio antenna is designed for the match of ultra-wideband fuze transmitter with antenna bandwidth and power. The feeding point and opening angle of triangular symmetrical dipole antenna are optimized by CST. The results show that the best feeding point of the ultra triangular symmetrical dipole antenna is at the top, and the best opening angle is 60°. The time domain analysis is more suitable for the simulation and optimization of radio antenna by analyzing the voltage standing wave ratio (VSWR), antenna bandwidth, antenna gain and radiation signal amplitude of ultra-wideband radio antenna.

Key words: ordnance science and technology, ultra-wideband fuze, ultra triangular symmetrical dipole antenna, radiation signal, time domain analysis