Airport is probably a very different environment, though? I imagine that if you have a military installation, you don't mind blasting some birds with RF every now and then (and the birds probably don't mind either).
A bird is small and largely non-conducting. I'd guess it could plausibly survive a burst of microwave that could disable a drone, at any practical distance from the weapon.
Microwave covers a huge range 300 MHz to 300 GHz and they want something that will work in the rain or fog which means minimizing absorption by water as much as possible.
Unfortunately I do mind. Here’s where I live, there’s a bunch of endangered birds that live near the airport and don’t live literally anywhere else. Can’t really just go shooting them with death rays.
Same here. I have zero terrorists in my backyard. I do have kids, rabbits, lots of birds, kites, etc. What's up with these idiots thinking about putting this microwave bird killer in my back yard where there are no threats against which to protect. Idiots.
If any birds are in that situation near a military base or war zone I hope we got some if them in a zoo or dna as a backup for if we invent really good cloning since otherwise those birds are extinct