Chaos generator MMIC's using resonant tunneling diodes

Recently, applications of chaos, which is often observed in nonlinear circuits, have been studied intensively in the field of information processing and communication systems. Using resonant tunneling devices to make such nonlinear circuits has many advantages, for example, simplicity in circuit, high operation frequency and low power consumption. In this paper, we report the demonstration of high-frequency operations of the chaos generator microwave monolithic ICs consisting of an RTD and a high electron mobility transistor (HEMT).