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IEEE Transactions on Circuits and Systems II: Express Briefs

Issue 9 • Date Sept. 2009

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Displaying Results 1 - 20 of 20
  • Table of contents

    Publication Year: 2009, Page(s): C1
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs publication information

    Publication Year: 2009, Page(s): C2
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  • 22.7-dB Gain - 19.7-dBm ICP_{1{\rm dB}} UWB CMOS LNA

    Publication Year: 2009, Page(s):689 - 693
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (418 KB) | HTML iconHTML

    A fully differential CMOS ultrawideband low-noise amplifier (LNA) is presented. The LNA has been realized in a standard 90-nm CMOS technology and consists of a common-gate stage and two subsequent common-source stages. The common-gate input stage realizes a wideband input impedance matching to the source impedance of the receiver (i.e., the antenna), whereas the two subsequent common-source stages... View full abstract»

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  • Modeling Harmonic Distortions Caused by Nonlinear Op-Amp DC Gain for Switched-Capacitor Sigma–Delta Modulators

    Publication Year: 2009, Page(s):694 - 698
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (521 KB) | HTML iconHTML

    Op-amps are crucial components in sigma-delta modulators (SDMs). As device dimensions and supply voltages continue to scale down, it is increasingly critical to determine a suitable op-amp dc gain. If the dc gain is set too high, then the op-amp consumes too much power; if the dc gain is too small, then nonlinear distortion becomes serious. However, there exists no efficient approach for selecting... View full abstract»

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  • A Binary-Weighted Switching and Reconfiguration-Based Programmable Gain Amplifier

    Publication Year: 2009, Page(s):699 - 703
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB) | HTML iconHTML

    In previous works, the authors reported on binary-weighted switching and reconfiguration techniques to design programmable gain amplifiers (PGAs) with a wide decibel (dB)-linear range, a small gain error, a wide 3-dB bandwidth, and high linearity. In this brief, two techniques are analyzed in more detail. Adopting the two techniques, a new low-voltage PGA version is proposed that offers a precise ... View full abstract»

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  • Analysis of Errors in a Comparator-Based Switched-Capacitor Biquad Filter

    Publication Year: 2009, Page(s):704 - 708
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (165 KB) | HTML iconHTML

    Comparator-based switched-capacitor (CBSC) techniques have become popular in reducing power consumption and increasing the speed of data converters. This brief investigates the use of CBSC techniques for implementing a biquad filter. A CBSC implementation of a low-pass biquad is proposed, and the sources of error are analyzed. It is shown that implementing the lossy integrator as the last stage pr... View full abstract»

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  • A 25-mV-Sensitivity 2-Gb/s Optimum-Logic-Threshold Capacitive-Coupling Receiver for Wireless Wafer Probing Systems

    Publication Year: 2009, Page(s):709 - 713
    Cited by:  Papers (6)  |  Patents (63)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1177 KB) | HTML iconHTML

    A high-sensitivity capacitive-coupling receiver is presented for wireless wafer probing systems. The receiver with the optimum logic threshold (OLT) achieves the highest sensitivity of 25 mV at the data rate of 2 Gb/s in 0.18-mum CMOS. The OLT receiver increases the communication distance by more than four times while providing tolerance against distance-voltage-area variations. View full abstract»

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  • Fully Digital BPSK Demodulator and Multilevel LSK Back Telemetry for Biomedical Implant Transceivers

    Publication Year: 2009, Page(s):714 - 718
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (582 KB) | HTML iconHTML

    A novel fully digital binary-phase-shift-keying (BPSK) transceiver for forward data telemetry and a multilevel load-shift-keying (LSK) transceiver for passive back telemetry are implemented. The digital architecture for the BPSK demodulator allows for much less power consumption compared with prior art. The basic premise of the demodulation is to regenerate the incoming BPSK signal using a digital... View full abstract»

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  • A Mixed-Signal GFSK Demodulator Based on Multithreshold Linear Phase Quantization

    Publication Year: 2009, Page(s):719 - 723
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (679 KB) | HTML iconHTML

    An ultralow-power Gaussian frequency-shift keying (GFSK) demodulator with large tolerance for process variations and wide coverage of data rate for low-intermediate-frequency (low-IF) wireless receivers is presented. A novel multithreshold linear phase quantization technique is proposed to improve the demodulator sensitivity and relax the tradeoff between the selection of the IF and the data rate.... View full abstract»

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  • Decoder Design for RS-Based LDPC Codes

    Publication Year: 2009, Page(s):724 - 728
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (509 KB) | HTML iconHTML

    This brief studies very large-scale integration (VLSI) decoder architectures for RS-based low-density parity-check (LDPC) codes, which are a special class of LDPC codes based on Reed-Solomon codes. The considered code ensemble is well known for its excellent error-correcting performance and has been selected as the forward error correction coding scheme for 10GBase-T systems. By exploiting the shi... View full abstract»

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  • A High-Speed and EDP-Efficient Range-Matching Scheme for Packet Classification

    Publication Year: 2009, Page(s):729 - 733
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (855 KB) | HTML iconHTML

    A range-matching scheme for packet classification (PC) that greatly improves search speed is presented. It effectively reduces the energy delay product (EDP) and increases the storage efficiency by up to 2.5 times over conventional ternary content addressable memories (TCAMs) under typical PC rule sets. Simulation results show that the proposed 16-bit range-matching word (RMW) achieves a 1.53-ns s... View full abstract»

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  • Design of a Multimode QC-LDPC Decoder Based on Shift-Routing Network

    Publication Year: 2009, Page(s):734 - 738
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB) | HTML iconHTML

    A reconfigurable message-passing network is proposed to facilitate message transportation in decoding multimode quasi-cyclic low-density parity-check (QC-LDPC) codes. By exploiting the shift-routing network (SRN) features, the decoding messages are routed in parallel to fully support those specific 19 and 3 submatrix sizes defined in IEEE 802.16e and IEEE 802.11n applications with less hardware co... View full abstract»

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  • New LMI Approach to Fuzzy H_{\infty } Filter Designs

    Publication Year: 2009, Page(s):739 - 743
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (138 KB) | HTML iconHTML

    This brief is concerned with the H infin filtering problem for a class of discrete-time fuzzy systems. The objective is to find a new way to design a stable filter guaranteeing the asymptotic stability and a prescribed H infin performance of the filtering error system. By using the fuzzy Lyapunov function approach and adding slack matrix variables, a new conditi... View full abstract»

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  • Exponential Stability of Impulsive Delayed Linear Differential Equations

    Publication Year: 2009, Page(s):744 - 748
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB) | HTML iconHTML

    This brief considers the global exponential stability of impulsive delayed linear differential equations. By utilizing the Lyapunov function methods combined with the Razumikhin technique, several criteria on exponential stability are analytically derived, which are substantially an extension and a generalization of the corresponding results in recent literature. Compared with some existing works,... View full abstract»

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  • 2010 IEEE international symposium on circuits and systems

    Publication Year: 2009, Page(s): 749
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  • Leading the field since 1884 [advertisement]

    Publication Year: 2009, Page(s): 750
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  • Why we joined ... [advertisement]

    Publication Year: 2009, Page(s): 751
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs Information for authors

    Publication Year: 2009, Page(s): 752
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  • IEEE Circuits and Systems Society Information

    Publication Year: 2009, Page(s): C3
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  • Blank page [back cover]

    Publication Year: 2009, Page(s): C4
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Aims & Scope

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief

Chi K. Michael Tse
Dept. of Electronic and Information Engineering
Hong Kong Polytechnic University
Hunghom, Hong Kong
cktse@ieee.org