A high-efficiency terahertz voltage-controlled oscillator and a phase-locked loop system based thereon

Abstract

This invention discloses a high-efficiency terahertz voltage-controlled oscillator and a phase-locked loop system based thereon, applicable to the field of terahertz communication. It addresses the problem that existing technologies cannot achieve maximum output power or maximum conversion efficiency for the oscillator. Based on the traditional cross-coupled oscillator, this invention adds a gate inductor L between the gates of the two transistors. gg Provides two transistors M P M N Operating at maximum power-added efficiency, the improved voltage-controlled oscillator of this invention outputs maximum power or achieves maximum DC-to-RF conversion efficiency. At the same time, the phase-locked loop system using the high-efficiency oscillator structure shown in this invention can eliminate the need for high-loss power dividers and other components required for multiple outputs, thereby saving the overall power consumption of the phase-locked loop.

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