TY - GEN
T1 - A 18.7-to-31.8GHz Wideband Low-Phase-Noise Hybrid-Coupled Quad-Core Millimeter-Wave VCO with 200.5dBc/Hz of FoMT
AU - Zhao, Ziyan
AU - Wang, Kaige
AU - Shi, Chunqi
AU - Zhang, Runxi
AU - Deng, Hao
AU - Chen, Jinghong
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This paper proposes a quad-core, quad-mode millimeter-wave (mmWave) voltage-controlled oscillator (VCO) utilizing electromagnetic hybrid coupling. This design achieves a wide frequency tuning range and low phase noise, fulfilling the needs of integrated sensing and communication (ISAC) systems. The oscillator addresses the challenge of concurrent oscillations in multi-mode switching oscillators by implementing a switched transconductance network. The VCO also employs a controllable tail transistor array to suppress flicker noise up-conversion across a wide bandwidth, effectively reducing the 1/f 3 corner frequency and enhancing the phase noise performance. The VCO is fabricated in a 55-nm CMOS process occupying a core area of 0.08 mm2. Measurement results show that the VCO achieves a tuning range of 51.9% spanning from 18.7 to 31.8 GHz, and a phase noise of -110.0 dBc/Hz at 1 MHz offset while consuming 8.4 mW of power, leading to a figure of merit (FoM) of 186.2 dBc/Hz and FoMT of 200.5 dBc/Hz at 1 MHz offset.
AB - This paper proposes a quad-core, quad-mode millimeter-wave (mmWave) voltage-controlled oscillator (VCO) utilizing electromagnetic hybrid coupling. This design achieves a wide frequency tuning range and low phase noise, fulfilling the needs of integrated sensing and communication (ISAC) systems. The oscillator addresses the challenge of concurrent oscillations in multi-mode switching oscillators by implementing a switched transconductance network. The VCO also employs a controllable tail transistor array to suppress flicker noise up-conversion across a wide bandwidth, effectively reducing the 1/f 3 corner frequency and enhancing the phase noise performance. The VCO is fabricated in a 55-nm CMOS process occupying a core area of 0.08 mm2. Measurement results show that the VCO achieves a tuning range of 51.9% spanning from 18.7 to 31.8 GHz, and a phase noise of -110.0 dBc/Hz at 1 MHz offset while consuming 8.4 mW of power, leading to a figure of merit (FoM) of 186.2 dBc/Hz and FoMT of 200.5 dBc/Hz at 1 MHz offset.
KW - Integrated sensing and communication
KW - electromagnetic hybrid coupling
KW - voltage-controlled oscillator
UR - https://www.scopus.com/pages/publications/105010617091
U2 - 10.1109/ISCAS56072.2025.11044037
DO - 10.1109/ISCAS56072.2025.11044037
M3 - 会议稿件
AN - SCOPUS:105010617091
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - ISCAS 2025 - IEEE International Symposium on Circuits and Systems, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE International Symposium on Circuits and Systems, ISCAS 2025
Y2 - 25 May 2025 through 28 May 2025
ER -