Design of a simple and low cost chaotic signal generation circuit for UWB applications

• Published in: The European physical journal. ST, Special topics Vol. 230; no. 18-20; pp. 3439 - 3447
• Main Authors: Fellah, Rabiai, Azzaz, Mohamed Salah, Tanougast, Camel, Kaibou, Redouane
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2021; Springer Nature B.V
• Subjects: Atomic; Bifurcation; Circuit design; Classical and Continuum Physics; Communications systems; Condensed Matter Physics; Jamming; Low cost; Materials Science; Mathematical analysis; Mathematical Modelling; Measurement Science and Instrumentation; Molecular; Nonlinear Dynamics; Optical and Plasma Physics; Photosensitivity; Physics; Physics and Astronomy; Power consumption; Regular Article; Signal generation; Synchronization and Control of Mechanisms Driven by Power Supply; Ultrawideband
• ISSN: 1951-6355; 1951-6401
• DOI: 10.1140/epjs/s11734-021-00251-5

Ultra-wideband (UWB) is a very promising technology in several applications, where low-power consumption, low complexity, and low-cost constraints are strongly required, particularly for high-resolution radars, collision detectors, high speed communication systems and precise geo-localization devices. The chaotic signal is also a good candidate for generating chaos in Ultra-wideband (UWB) because of its interesting proprieties. In this paper, a new chaotic generator circuit is proposed and designed. The aim is to achieve an Ultra-wideband range occupied by a chaotic signal with low-cost design. The proposed architecture circuit was simulated using the advanced design systems (ADS) tool. A mathematical model of this circuit is developed. Based on simulation results, the proposed circuit was manufactured using a positive photosensitive (PTFE) copper board (ABT18). Experimental results show that this circuit presents good chaotic dynamic behavior with Ultra-wideband signal up to 5 GHz and uniform spectrum around - 40 dBm. The generated random-like signal can be very useful in many real applications, such as jamming and through-the-wall imaging.