Transmission Lines and Schottky Diode

Abstract

In this thesis we used a nonlinear relation between current and voltage for schottky resonant tunneling diode and obtained a general form of equation similar to Van Der Pol equation for an oscillator. A Resonant tunneling diode(RTD) has a negative differential resistance that means when the voltage increases the current decreases. This property is very useful for oscillators manufacture. Also I studied some kinds of nonlinear transmission lines to show that it can be used in oscillators and show that it can reshape the sinusoidal signals to other shapes by using OrCad and mathematica programming