124-GHz CMOS quadrature voltage-controlled oscillator with fundamental injection locking

Kyoya Takano, Kosuke Katayama, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

A 124-GHz injection-locked quadrature voltage-controlled oscillator (ILQVCO) fabricated using a 40-nm CMOS process is presented. It locks onto a fundamental reference signal at 124 GHz generated on-chip from an external reference at 31 GHz, thereby avoiding generation of spurious noise commonly se en in the phase noise spectra of subharmonically injection-locked VCOs. The QVCO's phase noise levels in the free-running and injection-locked conditions are -87 dBc/Hz and -117 dBc/Hz, respectively, at 1-MHz offset. The high fundamental oscillation frequency and the low phase noise are realized by adopting a ring-type topology and transformers for inter-stage impedance matching. The ILQVCO is combined with an on-chip double-balanced quadrature modulator for vector signal generation. A 32QAM signal thus generated achieved a data rate of 25 Gb/s with an error-vector magnitude (EVM) of 5.1%.

本文言語English
ホスト出版物のタイトル2015 IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781467371919
DOI
出版ステータスPublished - 2016 1 19
外部発表はい
イベント11th IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Xiamen, Fujian, China
継続期間: 2015 11 92015 11 11

Other

Other11th IEEE Asian Solid-State Circuits Conference, A-SSCC 2015
CountryChina
CityXiamen, Fujian
Period15/11/915/11/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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