Design, Simulation and Fabrication of a Mobile Jammer in GSM Bands

In some locations, using cell phone causes interference in performance of some electronic systems. Further, certain locations require silence and information security. Cell phone blocker or jammer is a device to interrupt the connections in the mobile phone. The signal emitted by the jammer resembles the mobile signal. As a pre-requisite condition jammer should have more power than the BTS transmitter in the desired range. Under this condition, mobile signal will be zero. The purpose of this paper is to design, simulate, and fabricate mobile blocker in GSM frequency bands. The proposed device is a strong transmitter capable of producing and emitting an interference signal in the P-GSM-900, DCS-1800, and PCS-1900 bands. This signal looks like noise and interrupts the connection of cell phones within a 10 m radius of the jammer. The capability to function in various GSM bands and reduce the cost of construction are the benefits of this plan.