A millimeter-wave CMOS VCO featuring a mode-ambiguity-aware multi-resonant-RLCM tank

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High-performance harmonic-rich single-core VCO with multi-LC tank: A tutorial

Y Chen, PI Mak, RP Martins - IEEE Transactions on Circuits and …, 2022 - ieeexplore.ieee.org
This brief overviews the development of high-performance single-core voltage-controlled
oscillators (VCOs) employing a multi-LC tank over the past two decades. From the circuit …
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Low voltage switched-capacitive-based reconfigurable charge pumps for energy harvesting systems: An overview

TS Ho, H Ramiah, KKP Churchill, Y Chen… - IEEE …, 2022 - ieeexplore.ieee.org
Conventional SC-based charge pump with fixed conversion ratio is predominantly adopted
in energy harvesting (EH) systems, which becomes a bottleneck for attaining high power …
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A comparative study of ring VCO and LC-VCO: Design, performance analysis, and future trends

NR Sivaraaj, KKA Majeed - IEEE Access, 2023 - ieeexplore.ieee.org
Voltage-controlled Oscillator (VCO) is a prominent part that has been used to generate a
stable frequency for the high-frequency transceiver system. This survey encompasses a …
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A low-phase-noise quad-core millimeter-wave fundamental VCO using circular triple-coupled transformer in 65-nm CMOS

H Jia, P Guan, W Deng, Z Wang… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
The minimal achievable phase noise (PN) of millimeter-wave (mm-wave) voltage-controlled
oscillators (VCOs) is bounded by the smallest realizable inductor with a reasonable high …
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An X-Band CMOS VCO Using Ultra-Wideband Dual Common-Mode Resonance Technique

F Hong, H Zhang, D Zhao - … on Circuits and Systems I: Regular …, 2022 - ieeexplore.ieee.org
In this paper, the dual common-mode (CM) resonance technique is proposed for lowering
the phase noise (PN) and flicker PN corner of LC voltage-controlled oscillators (VCOs) …
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A 3.78-GHz Type-I Sampling PLL With a Fully Passive KPD-Doubled Primary–Secondary S-PD Measuring 39.6-fsRMS Jitter, −260.2-dB FOM, and −70.96–dBc …

Y Huang, Y Chen, B Zhao, PI Mak… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper reports an active-buffer-free type-I sampling phase-locked loop (S-PLL). We
innovate a fully-passive sampling phase detector with passive-gain multiplication after the …
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A 3.6-GHz Type-II Sampling PLL With a Differential Parallel-Series Double-Edge S-PD Scoring 43.1-fsRMSJitter, −258.7-dB FOM, and −75.17-dBc Reference Spur

Y Huang, Y Chen, B Zhao, PI Mak… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This article presents a low-jitter and low-spur type-II sampling phase-locked loop (S-PLL).
The innovative introduction of a differential parallel-series double-edge sampling phase …
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A Transformer-Based Technique to Improve Tuning Range and Phase Noise of a 20–28GHz LCVCO and a 51–62GHz Self-Mixing LCVCO

O Esmaeeli, S Lightbody, AHM Shirazi… - … on Circuits and …, 2022 - ieeexplore.ieee.org
Varactors in RF CMOS processes often have significantly lower Q-factor () than inductors
and transformers at mm-wave frequencies. Direct connection of varactors to the outputs of …
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Analysis and design of a 15.2-to-18.2-GHz inverse-class-F VCO with a balanced dual-core topology suppressing the flicker noise upconversion

X Meng, H Li, P Chen, J Yin, PI Mak… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper presents the theory and implementation of a balanced dual-core inverse-class-F
(class-F) voltage-controlled oscillator (VCO). The class-F topology supports high-quality …
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A 28-nm Dual-Mode Explicit Class-F VCO With Low-Loss CM Return Path Achieving 70–400-kHz 1/ PN Corner Over 4.9–7.3-GHz TR

S Lu, D Wu, X Guo, H Jia, Y Chen… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This brief presents an explicit Class-F23 voltage-controlled oscillator (VCO). The square-like
voltage waveform is obtained via waveform sha**, and flicker noise upconversion is …
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