How large an area do you need to cover with drones to avoid, say, the F-22 climbing or diving by 10,000 feet? A wall of drones 100 feet apart, covering 10,000

How large an area do you need to cover with drones to avoid, say, the F-22 climbing or diving by 10,000 feet? A wall of drones 100 feet apart, covering 10,000 x 10,000 feet, is 100 x 100 drones, or 10,000 drones, which is a wall that's a little under 2 miles by 2 miles. That's a lot of drones to cover very little area, and they have to each carry enough explosive to create a shockwave that might damage the plane. Moreover, this is a one-shot weapon. Once something sets it off (like a plane-like drone), there's a big gap in the wall. The idea of saturating an area with explosive drones has a scaling problem that would probably make it cost-prohibitive quite quickly.