Generation of Chaotic Phase Shift Keying Employing VDCC-Based Chua’s Oscillator

A passive resistor-free Chua’s diode using a Voltage Differencing Current Conveyor (VDCC) is designed for Chua’s circuit. The proposed Chua’s circuit offers the advantages of a minimum component count, high-frequency operation (4[Formula: see text]kHz to 5[Formula: see text]MHz), suitable for the generation of Chaotic Phase Shift Keying (CPSK) transmission for secure communication and a few more. Moreover, nonideality tests and dynamical analysis of the proposed Chua’s design are studied for better understanding. The operational activity of the proposed Chua’s circuit is well tested through PSPICE simulation, in which both CMOS-based VDCC with 0.18[Formula: see text] [Formula: see text]m TSMC parameters and IC-based VDCC design using IC Current Feedback Operational Amplifier (CFOA/IC-AD844) and Operational Transconductance Amplifier (OTA/IC-CA3080) are designed. In addition to simulation results, hardware implementation of the proposed circuit is tested on the breadboard by implementing VDCC using IC-AD844 and IC-CA3080. Finally, an application perspective of the proposed design as a CPSK transmission is carried out for secure transmission, and a comparison study of the proposed work with other existing Chua’s designs is executed.