Design and realization of jammer for drone

Today, the use of mobile vehicles that can be directed or remotely controlled by communicating with other systems is quite common. These tools, which are used maliciously by unauthorized people, must be neutralized by security guards. Drones, one of these tools, receive commands in three fundamental frequency bands. The most common of these bands is the 2.4 GHz center frequency band. In other words, it is likely to receive and send signals in the 2.3–2.5 GHz range. In this study, a jammer has been designed to be used against drones or similar dangerous devices. For this purpose, a 2.4 GHz center frequency voltage-controlled oscillator (VCO) was chosen. In order for the jammer to be effective in a wide range, a Triangle Wave Generator output with a frequency of 1350 Hz is applied to the VCO adjustment input, allowing it to scan in the VCO working band. Since the Triangle Wave Generator gives symmetrical output, a triangular wave shape varying between 0-5 V has been obtained with the collector circuit realized with the inverting Opamp in order to make it suitable for the VCO input. In the measurements made with the spectrum analyzer, a fast scan was observed in the 2.25-2.5 GHz band at the VCO output. In the ongoing study, a Noise Generator was added to the triangle wave and its effect on the band was examined. Since the power of the generated interference scanning signal is insufficient, the Drone was deactivated by using an RF Power Amplifier and Directional Antenna.