An Dual-Polarization Ultral-Wideband Wide-Angle Scan Array Antenna

An Ultra-wideband(UWB) wide-angle scan dual-polarization array antenna is designed and made for wideband radar and electronic warfare. The antenna is Vivaldi antenna, the work frequency is 6-18GHz, the scan angle is ±45°, and the array size is 16×16×2. The structure of the antenna and simulation method is introduced. After be optimized, the active-VSWRs of the antenna at 3:1 bandwidth with ±45°scan angle are blew 3. The VSWR and lobe diagram of the array are measured, and results show the array antenna could match the system needs.