A Low-Phase-Noise Wide-Tuning-Range Mode-Switching Oscillator Using Multi-Magnet

Abstract

In this article, a mode-switching oscillator using multi-magnetic-coupling and active-source-degenerating tech- niques is proposed to achieve wide frequency tuning and low phase noise. The multi-magnetic coupled resonator can realize two switchable resonant frequencies and perform active source degeneration. Two main coils are developed to switch between the two resonant modes, thereby doubling the frequency tuning range (TR) without degrading the phase noise performance. The effective noise pow