A Low Phase Noise 11.8-15.3 GHz CMOS LC-VCO with High-Q Inductor

Sun, Kai; Wang, Junliang; Wang, Xuan; Gu, Jian; Li, Lianming; Fan, X.

doi:10.1109/rfit52905.2021.9565255

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The citations cover a wide range of topics related to oscillator design, including low-phase noise design, low-power operation, frequency dividers, and various techniques for improving VCO performance. There are some recent works but with different CMOS process, techniques, and carrier frequency are cited in [27][28][29][30][31].…”

Section: Comparison With Previous Workmentioning

confidence: 99%

Design and Optimization of an Ultra-Low-Power Cross-Coupled LC VCO with a DFF Frequency Divider for 2.4 GHz RF Receivers Using 65 nm CMOS Technology

Siddiqui,

Maheshwari,

Raza

et al. 2023

JLPEA

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This article presents the design and optimization of a tunable quadrature differential LC CMOS voltage-controlled oscillator (VCO) with a D flip-flop (DFF) frequency divider. The VCO is designed for the low-power and low-phase-noise applications of 2.4 GHz IoT/BLE receivers and wireless sensor devices. The proposed design comprises the proper stacking of an LC VCO and a DFF frequency divider and is simulated using a TSMC 65 nm CMOS technology, and it has a tuning range of 4.4 to 5.7 GHz. The voltage headroom is preserved using a high-impedance on-chip passive inductor at the tail for filtering and enabling true differential operation. The VCO and frequency divider consume as low as 2.02 mW altogether, with the VCO section consuming only 0.47 mW. The active area of the chip including the pads is only 0.47 mm2. The designed VCO achieved a much better phase noise of −118.36 dBc/Hz at a 1 MHz offset frequency with 1.2 V supply voltages. The design produced a much better FoM of −196.44 dBc/Hz compared to other related research.

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Section: Comparison With Previous Workmentioning

confidence: 99%

Design and Optimization of an Ultra-Low-Power Cross-Coupled LC VCO with a DFF Frequency Divider for 2.4 GHz RF Receivers Using 65 nm CMOS Technology

Siddiqui,

Maheshwari,

Raza

et al. 2023

JLPEA

View full text Add to dashboard Cite

show abstract

“…T He need for precise and low-power features in wireless personal digital assistance devices has grown in recent years, which emphasizes the need for RF designers to work within the ultimate limits of technology [1]- [4]. It is identified that in recent years, voltage-controlled oscillators (VCO) have been extensively designed, as it was the most prominent building block in the Phase-Locked Loop (PLL) system, which could generate a stable frequency [5]- [9]. The VCO designers have addressed parameters like good phase noise, low power, tuning range, smaller area, lower Figure of Merit (FOM), and cost [9], [10].…”

Section: Introductionmentioning

confidence: 99%

“…It is identified that in recent years, voltage-controlled oscillators (VCO) have been extensively designed, as it was the most prominent building block in the Phase-Locked Loop (PLL) system, which could generate a stable frequency [5]- [9]. The VCO designers have addressed parameters like good phase noise, low power, tuning range, smaller area, lower Figure of Merit (FOM), and cost [9], [10]. The VCOs have been employed in various kinds of applications such as optical transmission, clock generation, frequency synthesizers, function generators, and Radio Frequency Integrated Circuits (RFIC) [11]- [15] etc.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

Sivaraaj,

Majeed

2023

IEEE Access

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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 comparative analysis of two commonly used VCO architectures: the Ring VCO and LC-VCO. The Ring VCO has been constructed with the collection of ring delay cells. Moreover, the LC-VCO utilizes inductors, capacitors, fine-tuning circuits, coarse-tuning circuits to generate frequency. Furthermore, this study investigates an in-depth exploration of VCO structures, operational principles, advantages, limitations, and performance metrics. In addition, it evaluates performance parameters, including operating frequency range, phase noise, figure of merit, and tuning techniques. This research suggests that based on the application and its requirements, the VCO performance parameters need to be varied. This survey employs diverse types of VCO, and its design methods. Implications for future research and study of VCO design and integration are discussed.

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A 14-GHz-Band Harmonic Tuned Low-Power Low-Phase-Noise VCO IC with a Novel Bias Feedback Circuit in 40-nm CMOS SOI

Fang

Yoshimasu

2022

2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

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A Low Phase Noise 11.8-15.3 GHz CMOS LC-VCO with High-Q Inductor

Cited by 3 publications

References 7 publications

Design and Optimization of an Ultra-Low-Power Cross-Coupled LC VCO with a DFF Frequency Divider for 2.4 GHz RF Receivers Using 65 nm CMOS Technology

Design and Optimization of an Ultra-Low-Power Cross-Coupled LC VCO with a DFF Frequency Divider for 2.4 GHz RF Receivers Using 65 nm CMOS Technology

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

A 14-GHz-Band Harmonic Tuned Low-Power Low-Phase-Noise VCO IC with a Novel Bias Feedback Circuit in 40-nm CMOS SOI

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