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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Chen, Kuan-Han

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    Investigation and Optimization of Low-Power Techniques in X-Band CMOS LC-VCO Design
    (2011)
    Tian, Xin-Cheng
    ;
    Liu, Szu-Ling
    ;
    Chen, Kuan-Han
    ;
    Hao, Yue
    ;
    電子工程學系及電子研究所
    This paper investigates the optimization method for two low-power circuit techniques in low-power LC-VCO designs: Transformer feedback and forward body-bias. In addition to theoretical analysis, a low-power, low-voltage X-band VCO using these two techniques has also been implemented in a standard 0.18 mu m CMOS technology. This VCO exhibits good FOM and of -191.4dBc/Hz while the core circuit draws a DC current of 2.73mA from 0.55V low supply voltage. The excellent performance can be compared with the best reported X-band CMOS VCOs.
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    A Low-Power K-Band CMOS VCO With Four-Coil Transformer Feedback
    (2010-08-01)
    Liu, Szu-Ling
    ;
    Chen, Kuan-Han
    ;
    Chang, Tsu
    ;
    Chin, Albert
    ;
    電子工程學系及電子研究所
    A K-band low-power and low-phase-noise voltagec-ontrolled oscillator (VCO) is presented in this letter. By utilizing four-coil transformer feedback and forward body bias topology, good performances are obtained under a low-power supply with a 5.1% tuning range and a phase noise of -109.8 dBc/Hz at 1 MHz offset from the 21.37-GHz carrier frequency. The core circuit of this VCO only consumes 3.5 mW with a 0.6-V supply voltage and a 0.55-V body bias.
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    A Dual-Resonant Mode 10/22-GHz VCO With a Novel Inductive Switching Approach
    (2012-07-01)
    Liu, Szu-Ling
    ;
    Chen, Kuan-Han
    ;
    Chin, Albert
    ;
    電子工程學系及電子研究所
    ;
    Department of Electronics Engineering and Institute of Electronics
    This paper presents a novel dual-band voltage-controlled oscillator (VCO) in a standard 0.18-mu m CMOS technology. With special design in the LC tank, the circuit exhibits two oscillation modes in different frequency bands. The frequency band selection is achieved by a switched coupled inductor with the tunable inductance and quality factor. This VCO can operate in a 10-GHz band with 7.6% tuning range and a 22-GHz band with 8% tuning range, while the core circuit draws a dc current of 8.44 mA from a 1.8-V supply voltage. The figures-of-merit at 10- and 22-GHz bands are -184.63 and -181.81 dBc/Hz, respectively. These performances are comparable with state-of-the-art dual-band LC-VCOs.