APPARATUS FOR COUNTERACTING UNAUTHORIZED TRANSMISSION OF CONTROL INFORMATION Russian patent published in 2020 - IPC H04K3/00 

FIELD: physics.

SUBSTANCE: invention relates to means of controlling mines and other explosive objects having radio fuses and is intended for protection against radio-controlled explosive devices. Device comprises series-connected first voltage source 1, first capacitor 2 of first capacitance storage 3, first controlled switch 4, second voltage source 5, second charge device 6 of second capacitance storage 7, second controlled switch 8, outputs of switches 4 and 8 are connected together and connected to inputs of third controlled switch 9 and fourth controlled switch 10. Output of third controlled switch 9 is loaded on antenna 11, and output of fourth controlled switch 10 is loaded on antenna 12. Antennas are connected to matching load resistors (not shown). Antennae can be made of extended copper cable (tube) or radiating cable and have different length. Control device 13 is connected to charge devices 2 and 6 of capacitance accumulators 3, 7 respectively and with controlled keys 4, 8, 9, 10. Capacitive accumulators 3 and 7 have different polarity to form bipolar voltage pulses in antennas.

EFFECT: high probability of guaranteed radio suppression at the same energy density of the interference signal in the protected range.

1 cl, 2 dwg