학술논문
A chaotic oscillator using Carbon Nanotube based transistors
Document Type
Conference
Source
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Signal Processing, Communication and Computing (ICSPCC), 2013 IEEE International Conference on. :1-4 Aug, 2013
Subject
Language
Abstract
A simple and low-power-based discrete-time chaotic oscillator based on Carbon Nanotube Field-Effect Transistors (CNFETs) is presented in this paper. The CNFET is built in SPICE using Wong and Deng's well-known model. The chaotic circuit is composed of a nonlinear circuit that creates an adjustable chaos map, two sample and hold cells for capture and delay functions, and a voltage shifter that works as a buffer and adjusts the output voltage for feedback. The operation of the chaotic circuit was verified via time series and power spectra in the SPICE with a supply voltage of 0.9 V and a frequency of 20 kHz conditions. The CNT-based chaotic circuit design is better at thermal reliability and power consumption in comparing with presented MOS-based design making it suitable for systems where many chaos-signal generators are required on a single chip.