A 32 GHz Low-Power Low-Phase-Noise VCO Implemented in SiGe BiCMOS Technology

Qi, Yajuan; He, Ran; Shen, Zhao

doi:10.12720/jcm.12.2.98-104

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Accordingly, an oscillator is desired that can achieve lower noise and power consumption over a wide range of telecommunication frequencies. Low‐power VCOs are extremely important due to the development of battery‐powered portable communication devices 1–4 . Moreover, these circuits have recently received attention because of their applications in home automation, wireless communication devices, and wireless sensor networks.…”

Section: Introductionmentioning

confidence: 99%

A CNT based VCO with extremely low phase noise and wide frequency range for PLL application

Sarbazi

Sabbaghi‐Nadooshan

Hassanzadeh

2021

Int J Numerical Modelling

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Voltage controlled oscillators (VCOs) are used as key components in phase‐locked loop systems for generating stable oscillation signals. Since the digital electronics industry increasingly needs a faster operation, VCOs need to generate signals at higher frequencies. This paper presents a voltage controlled oscillator with a wide frequency range and very low phase noise by using carbon nanotube technology. The Stanford CNTFET model is implemented in Verilog‐A, and the proposed CNTFET VCO is simulated using ADS software. Simultaneous use of forward bulk biasing and an inductor yields a carbon nanotube oscillator with a frequency range of 6‐20 GHz and a phase noise of −123 dBc/Hz.

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Section: Introductionmentioning

confidence: 99%

A CNT based VCO with extremely low phase noise and wide frequency range for PLL application

Sarbazi

Sabbaghi‐Nadooshan

Hassanzadeh

2021

Int J Numerical Modelling

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“…Design of the low-power voltage-controlled oscillators (VCOs) is an increasingly important topic due to their extended application in the battery-operated portable and handheld communication devices (Wan et al, 2017;Qi et al, 2017;Tiebout, 2006;Linten et al, 2004). Moreover, biochips, home automation and wireless sensor networks are also recently demanding for these circuits.…”

Section: Introductionmentioning

confidence: 99%

Proposed 3.5 µW CNTFET-MOSFET hybrid CSVCO for power-efficient gigahertz applications

Khorram

Kokabi

2020

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Purpose Several ultra-low power and gigahertz current-starved voltage-controlled oscillator (CSVCO) circuits have been proposed and compared here. The presented structures are based on the three-stage hybrid circuit of the carbon nanotube field-effect transistors (CNTFETs) and low-power MOSFETs. The topologies exploit modified and compensated Schmitt trigger comparator parts to demonstrate better consumption power and frequency characteristics. The basic idea in the presented topologies is to compensate the Schmitt trigger comparator part of the basic CSVCO for achieving faster carrier mobility of the holes, reducing transistor leakage current and eliminating dummy transistors. Design/methodology/approach This study aims to propose and compare three different comparator-based VCOs that have been implemented using the CNTFETs. The considered circuits are shown to be capable of delivering the maximum 35 tuning frequency in the order of 1 GHz to 5 GHz. A major power thirsty part of the high-frequency ring VCOs is the Schmitt trigger stage. Here, several fast and low-power Schmitt trigger topologies are exploited to mitigate the dissipation power and enhance the oscillation frequency. Findings As a result of proposed modifications, more than one order of magnitude mitigation in the VCO power consumption with respect to the previously presented three-stage CSVCO is reported here. Thus, a VCO dissipation power of 3.5 µW at the frequency of 1.1 GHz and the tuning range of 26 per cent is observed for the well-established 32 nm technology and the supply voltage of 1 V. Such a low dissipation power is obtained around the operating frequency of the battery-powered cellular phones. In addition, using the p-carrier mobility compensation and enhancing the rise time of the Schmitt trigger part of the CSVCO, a maximum of 2.38 times higher oscillation frequency and 72 per cent wider tuning range with respect to Rahane and Kureshi (2017) are observed. Simultaneously, this topology exhibits an average of 20 per cent reduction in the power consumption. Originality/value Several new VCO topologies are presented here, and it is shown that they can significantly enhance the power dissipation of the GHz CSVCOs.

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Design of Low Power Class-C Voltage Controlled Oscillator Using 0.13 µm SiGe BiCMOS for K-band Applications

Mosallam

Musa

Ali³

et al. 2019

2019 Photonics &Amp; Electromagnetics Research Symposium - Fall (PIERS - Fall)

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A 32 GHz Low-Power Low-Phase-Noise VCO Implemented in SiGe BiCMOS Technology

Cited by 4 publications

References 17 publications

A CNT based VCO with extremely low phase noise and wide frequency range for PLL application

A CNT based VCO with extremely low phase noise and wide frequency range for PLL application

Proposed 3.5 µW CNTFET-MOSFET hybrid CSVCO for power-efficient gigahertz applications

Design of Low Power Class-C Voltage Controlled Oscillator Using 0.13 µm SiGe BiCMOS for K-band Applications

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