I've seen this or other similar ideas a number of times, and I have no faith that they would work outside commercial copters- I mean, right off the bat, the jamming is more likely to explode any bombs than anything else- and the military already has anti-jamming technology, or you could just use a nonstandard frequency, which from what I understand would also circumvent any jamming.

As far as I'm concerned, almost all anti-drone devices are complete shams.