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A 20 GHz Push-Push Voltage-Controlled Oscillator Using Second-Harmonic Peaking Technique for a 60 GHz Frequency Synthesizer
Teerachot SIRIBURANON Takahiro SATO Ahmed MUSA Wei DENG Kenichi OKADA Akira MATSUZAWA
IEICE TRANSACTIONS on Electronics
Publication Date: 2013/06/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
low phase noise, low power, tail-current modulation, impulse sensitivity function, super-harmonic coupled QVCO, push-push VCO,
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This paper presents a 20 GHz push-push VCO realized by a 10 GHz super-harmonic coupled quadrature oscillator for a quadrature 60 GHz frequency synthesizer. The output nodes are peaked by a tunable second harmonic resonator. The proposed VCO is implemented in 65 nm CMOS process. It achieves a tuning range of 3.5 GHz from 16.1 GHz to 19.6 GHz with a phase noise of -106 dBc/Hz at 1 MHz offset. The power consumption of the core oscillators is 10.3 mW and an FoM of -181.3 dBc/Hz is achieved.