A lot of anti-drone jamming is severing the wireless communication between a drone and its operator. In most of the write-up, these drones were on pre-planned

A lot of anti-drone jamming is severing the wireless communication between a drone and its operator. In most of the write-up, these drones were on pre-planned autonomous routes, and would thus not be affected. Unless you also had anti-radar installations :-) Or hell, some kinda highly-illegal and mostly-unfeasible microwave gun or multi-watt CO2 laser that you could point at a drone and bring it down.