Design of Automated Dual Band 4G Jammer using MATLAB Simulink

TL;DR

This paper designs an automated dual-band 4G jammer using MATLAB Simulink, which intelligently detects and jams specific LTE bands while conserving power when signals are absent.

Contribution

It introduces a novel circuit design with a full wave rectifier and trigger mechanism for efficient, power-saving 4G jamming in specific bands using MATLAB Simulink.

Findings

Accurate simulation results comparable to real-time analysis.

Power saving by activating jammer only when signals are detected.

Effective jamming of LTE bands 3 and 40 in simulations.

Abstract

This paper presents a design of efficient smart jammer to jam the 4G signals, specifically band 3 and band 40 which can be predominantly used in India. The MATLAB Simulink tool was used for the analysis of the circuit design. Simulink, an advanced tool gives accurate results comparable to real-time analysis. The DSP toolbox of the Simulink library has been largely used to construct and view the results of the model. The main objective of this paper is to receive the LTE signals, filter band 3 and band 40, add noise and increase the amplitude of the signal. The uniqueness of this design is the use of full wave rectifier in the circuit and the trigger enabled blocks. Full wave rectifier with added circuitry acts as a trigger to the jammer which contains the noise block and the gain block. Sine wave generators were used to replicate real-time signals and additional signals were added as noise. The advantage of the design is when none of the bands are detected, the output will not be generated, thus saving power. The incorporation of the detector circuit and trigger circuit ensures that power is not wasted by the jamming circuit when the signal is not detected. These jammers can be used in examination halls, conference halls and in secure location where telecommunication signals are unwanted.