A design set of equations for experiments of single transistor microwave oscillator based on negative resistance concept

Oscillator schematics which used single transistor circuit is proposed and design based on negative resistance concept. Symbolic input and output impedance of the propose schematic are derived. Even-though, its input and output resistance is not negative, the adaptive impedance matching network will be proposed to make input and output impedance of any circuits to have negative resistance.

I. Introduction

Since the first research paper of microwave oscillator based on negative resistance design concept appeared in 1960. There are no more than 10 papers in IEEE database that use this design concept to implement the microwave oscillator.