From the IEEE website:
Communications-frying e-bomb might be part of a stable of “less lethal weapons”
15 April 2009—This week at an arsenal in Huntsville, Ala., defense researchers are testing a new high-power microwave (HPM) bomb—one that creates an electromagnetic pulse capable of disabling electronics, vehicles, guided missiles, and communications while leaving people and structures unharmed. The tests mark the first time such a device has been shrunk to dimensions that could make it portable enough to fit in a missile or carried in a Humvee or unmanned aerial vehicle.
Bob VE3MPG says
This can certainly disable persons with pacemakers or cochlear implants. I have a cochlear implant and can’t go near MRI machines at all.