Antenna for Mobile Phone Jammer

The last few years have witnessed a dramatic boom in the wireless communications industry, hence increasing the number of users of mobile communication devices. This magnified the need for a more efficient and reliable signal scrambler. This paper deals with the mobile jamming technology. The concept of jamming technology is studied in a step-by-step approach. The mobile jammer in the frequency range of 890 MHz to 960 MHz (GSM) is developed. Its circuit analysis simulation is performed using Speace-spice Software. Antenna simulation is done by using IE3D software [8]. The jammer circuit is designed with minimum cost and high efficiency. The jammer jams the signal within five meter effective radius.