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Content Provider | IEEE Xplore Digital Library |
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Author | To-Po Wang Chung-Chin Li |
Copyright Year | 2012 |
Description | Author affiliation: Department of Electronic Engineering and Graduate Institute of Computer and Communication Engineering, National Taipei University of Technology, 10608, Taiwan, R.O.C. (To-Po Wang; Chung-Chin Li) |
Abstract | A low-voltage low-power high-performance fully-integrated 0.18-µm CMOS voltage-controlled oscillator (VCO) is presented in this paper. By increasing device size of the nMOS cross-coupled pair, not only transconductance (g) of the MOSFET can be enhanced, but also negative conductance (-G) of the cross-coupled pair can be effectively boosted. Moreover, forward-body biased technique is utilized in this VCO for threshold voltage (V) reduction, leading to a reduced supply voltage and minimized dc power consumption. Furthermore, high-value resistors are employed between the nMOS bodies and forward-body biases to prevent the signal leakage and noise coupling. Based on these design methodologies, the fabricated 0.18-µm CMOS VCO can operate at a measured 0.4-V low supply voltage and consume 1.08-mW low core power. At this bias condition, the measured phase noise at 1-MHz offset from 12.77-GHz carrier is −110.2 dBc/Hz, and the measured tuning range is 5.75%. Compared to recently published 0.18-µm X-band CMOS VCOs, this work demonstrates the lowest supply voltage, lowest dc power dissipation, superior figure-of-merit (FOM), and better figure-of-merit including the tuning range (FOM). |
Starting Page | 207 |
Ending Page | 210 |
File Size | 308241 |
Page Count | 4 |
File Format | |
ISBN | 9781457711534 |
ISSN | 21642974 |
e-ISBN | 9781457711558 |
DOI | 10.1109/RWS.2012.6175356 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2012-01-15 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Voltage-controlled oscillators CMOS integrated circuits Reactive power Threshold voltage Phase noise Tuning MOSFET circuits voltage-controlled oscillator (VCO) negative-conductance boosted |
Content Type | Text |
Resource Type | Article |
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