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

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

doi:10.1109/ASSCC.2015.7387510

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

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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%.

Original language	English
Title of host publication	2015 IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467371919
DOIs	https://doi.org/10.1109/ASSCC.2015.7387510
Publication status	Published - 2016 Jan 19
Externally published	Yes
Event	11th IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Xiamen, Fujian, China Duration: 2015 Nov 9 → 2015 Nov 11

Other

Other	11th IEEE Asian Solid-State Circuits Conference, A-SSCC 2015
Country	China
City	Xiamen, Fujian
Period	15/11/9 → 15/11/11

Keywords

CMOS
injection locking
millimeter wave
phase modulation
QVCO

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/ASSCC.2015.7387510

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124-GHz CMOS quadrature voltage-controlled oscillator with fundamental injection locking. / Takano, Kyoya; Katayama, Kosuke; Yoshida, Takeshi; Amakawa, Shuhei; Fujishima, Minoru.

2015 IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016. 7387510.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takano, K, Katayama, K, Yoshida, T, Amakawa, S & Fujishima, M 2016, 124-GHz CMOS quadrature voltage-controlled oscillator with fundamental injection locking. in 2015 IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Proceedings., 7387510, Institute of Electrical and Electronics Engineers Inc., 11th IEEE Asian Solid-State Circuits Conference, A-SSCC 2015, Xiamen, Fujian, China, 15/11/9. https://doi.org/10.1109/ASSCC.2015.7387510

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title = "124-GHz CMOS quadrature voltage-controlled oscillator with fundamental injection locking",

abstract = "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%.",

keywords = "CMOS, injection locking, millimeter wave, phase modulation, QVCO",

author = "Kyoya Takano and Kosuke Katayama and Takeshi Yoshida and Shuhei Amakawa and Minoru Fujishima",

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AU - Takano, Kyoya

AU - Katayama, Kosuke

AU - Yoshida, Takeshi

AU - Amakawa, Shuhei

AU - Fujishima, Minoru

PY - 2016/1/19

Y1 - 2016/1/19

N2 - 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%.

AB - 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%.

KW - CMOS

KW - injection locking

KW - millimeter wave

KW - phase modulation

KW - QVCO

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BT - 2015 IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 11th IEEE Asian Solid-State Circuits Conference, A-SSCC 2015

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