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[Keyword] push-push VCO(2hit)
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A 20-GHz Differential Push-Push VCO for 60-GHz Frequency Synthesizer toward 256 QAM Wireless Transmission in 65-nm CMOS Open Access
Yun WANG Makihiko KATSURAGI Kenichi OKADA Akira MATSUZAWA
- PAPER
- Vol:
- E100-C No:6
- Page(s):
- 568-575
This paper present a 20-GHz differential push-push voltage controlled oscillator (VCO) for 60-GHz frequency synthesizer. The 20-GHz VCO consists of a 10-GHz in-phase injection-coupled QVCO (IPIC-QVCO) with tail-filter and a differential output push-push doubler for 20-GHz output. The VCO fabricated in 65-nm CMOS technology, it achieves tuning range of 3 GHz from 17.5 GHz to 20.4 GHz with a phase noise of -113.8 dBc/Hz at 1 MHz offset. The core oscillator consumes up to 71 mW power and a FoM of -180.2 dBc/Hz is achieved.
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
- PAPER
- Vol:
- E96-C No:6
- Page(s):
- 804-812
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.
