Defeating radar technology is still an uphill battle though. For a quick look at what you're dealing with, try Googling investigations on disrupting police radar guns (which is a very similar technology really as far as tracking radars for projectiles go).
I've no doubt a state might be able to come up with a counter-measure based on this, but it would not at all be cheap or easy to implement (and Iron Dome doesn't work well enough to justify it in a normal war situation).
I've no doubt a state might be able to come up with a counter-measure based on this, but it would not at all be cheap or easy to implement (and Iron Dome doesn't work well enough to justify it in a normal war situation).