A 20GHz Push-Push Voltage-Controlled Oscillator Using Second-Harmonic Peaking Technique for a 60GHz Frequency Synthesizer

Teerachot SIRIBURANON; Takahiro SATO; Ahmed MUSA; Wei DENG; Kenichi OKADA; Akira MATSUZAWA

doi:10.1587/transele.E96.C.804

Special Section on Analog Circuits and Related SoC Integration Technologies

A 20GHz Push-Push Voltage-Controlled Oscillator Using Second-Harmonic Peaking Technique for a 60GHz Frequency Synthesizer

Teerachot SIRIBURANON, Takahiro SATO, Ahmed MUSA, Wei DENG, Kenichi OKADA, Akira MATSUZAWA

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Keywords: low phase noise, low power, tail-current modulation, impulse sensitivity function, super-harmonic coupled QVCO, push-push VCO

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2013 Volume E96.C Issue 6 Pages 804-812

DOI https://doi.org/10.1587/transele.E96.C.804

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Abstract

This paper presents a 20GHz push-push VCO realized by a 10GHz super-harmonic coupled quadrature oscillator for a quadrature 60GHz frequency synthesizer. The output nodes are peaked by a tunable second harmonic resonator. The proposed VCO is implemented in 65nm CMOS process. It achieves a tuning range of 3.5GHz from 16.1GHz to 19.6GHz with a phase noise of -106dBc/Hz at 1MHz offset. The power consumption of the core oscillators is 10.3mW and an FoM of -181.3dBc/Hz is achieved.

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