Antenna array device and all-airspace directional interference system for unmanned aerial vehicle

The invention discloses an antenna array device and an all-airspace directional interference system for an unmanned aerial vehicle. The antenna array device provided by the invention comprises a shell of which a horizontal section is a regular n-polygon structure, and a vertical section of the shell is a polygon structure formed by a first trapezoid to X-th trapezoid sequentially stacked one by one; N is the number of antenna array element determined according to an interference airspace range, and X is a natural number within the range of 1-3; an antenna unit is vertically installed on each side plane of the shell, and the antenna units are used for transmitting radio frequency interference signal to airspace right ahead. The interference system provided by the invention comprises the antenna array device, and an interference generation module, a radio frequency channel module, a signal amplification module and a battery module installed in the shell of the antenna array device. The device and the system provided by the invention have the characteristic of multi-target and zero-delay narrow beam directional suppression interference, and can be used for interfering a telemetering link while resisting air and space integrated multiple targets of the unmanned aerial vehicle, and performing all-airspace accurate positioning and striking on the one or multiple unmanned aerial vehicles.