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An 8-element common-mode-coupled 106 GHz fundamental oscillator with −111 dBc/Hz phase noise at 1 MHz offset | IEEE Conference Publication | IEEE Xplore

An 8-element common-mode-coupled 106 GHz fundamental oscillator with −111 dBc/Hz phase noise at 1 MHz offset


Abstract:

Phase noise reduces in a coupled array of oscillators at an ideal rate of 3N dB for 2N oscillators. Concept of “common-mode coupling” is introduced as a robust technique ...Show More

Abstract:

Phase noise reduces in a coupled array of oscillators at an ideal rate of 3N dB for 2N oscillators. Concept of “common-mode coupling” is introduced as a robust technique in reducing phase noise in mm-wave frequencies. A 106 GHz 8-element common-mode coupled Colpitts oscillator is implemented in a 130 nm SiGe HBT BiCMOS technology with a measured phase noise of -111 dBc/Hz at 1 MHz offset while consuming 90 mW. The core differential Colpitts oscillator uses a resonant biasing scheme to reduce phase noise. The improvement of phase noise compared to the stand-alone oscillator is 9 dB showing the effectiveness of the proposed coupling scheme.
Date of Conference: 04-06 June 2017
Date Added to IEEE Xplore: 07 July 2017
ISBN Information:
Electronic ISSN: 2375-0995
Conference Location: Honolulu, HI, USA

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