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 | |
| 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 |
Fingerprint
Keywords
- CMOS
- injection locking
- millimeter wave
- phase modulation
- QVCO
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
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
}
TY - GEN
T1 - 124-GHz CMOS quadrature voltage-controlled oscillator with fundamental injection locking
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
UR - http://www.scopus.com/inward/record.url?scp=84963819757&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84963819757&partnerID=8YFLogxK
U2 - 10.1109/ASSCC.2015.7387510
DO - 10.1109/ASSCC.2015.7387510
M3 - Conference contribution
AN - SCOPUS:84963819757
BT - 2015 IEEE Asian Solid-State Circuits Conference, A-SSCC 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -