教師著作

Permanent URI for this collectionhttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/31268

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Author: search.filters.author.Chi-Hsueh Wang

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    The Low-Cost RF-CMOS 60-GHzTransceiver
    (2007-03-01) Tian-Wei Huang; Chi-Hsueh Wang; Hong-Yeh Chang; Pei-Si Wu; Kun-You Lin; Jeng-Han Tsai,Chin-Shen Lin; Huei Wang; Chun Hsiung Chen
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    MMICs in the millimeter-wave regime
    (IEEE Microwave Theory and Techniques Society, 2009-02-01) Huei Wang; Kun-You Lin; Zuo-Min Tsai; Liang-Hung Lu; Hsin-Chia Lu; Chi-Hsueh Wang; Jeng-Han Tsai; Tian-Wei Huang; Yi-Cheng Lin
    On the basis of the current status of silicon based MMICs, it is possible to implement millimeter-wave SOC in silicon-based technologies that include the antenna, a medium-power amplifier, a transceiver, an LO (frequency synthesizer), and baseband circuits in a single chip. With certain interconnection schemes, such as flip-chip, to connect the chip to the substrate, it is also possible to integrate the best possible chips for a millimeter-wave communication system. Currently, CMOS is the best choice for the baseband circuits, while GaAs and InP MMICs can provide the best noise/power performance in the transceiver. High-efficiency antennas can be implemented directly on the packaging substrate. The SIP approach has the optimal combinations of the components for the best performance in a particular system. For example, a system in a package including CMOS baseband circuits, GaAs/InP-based transceiver, high-efficiency antenna, and high-power amplifier can achieve the best system characteristics. As we have discussed, the scope of SOC can be expanded along with more advanced MMIC fabrication technology and design techniques.
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    Design and analysis of a 0.8-77.5-GHz ultra-broadband distributed drain mixer using 0.13-μm CMOS technology
    (IEEE Microwave Theory and Techniques Society, 2009-03-01) Hong-Yuan Yang; Jeng-Han Tsai; Chi-Hsueh Wang; Chin-Shen Lin; Wei-Heng Lin; Kun-You Lin; Tian-Wei Huang; Huei Wang
    A compact and broadband 0.8-77.5-GHz passive distributed drain mixer using standard 0.13-mum CMOS technology is presented in this paper. To extend the operation bandwidth, a uniform distributed topology is utilized for wideband matching. This paper also analyzes the device size and number of stages for the bandwidth of the CMOS distributed drain mixer. To optimize the conversion gain performance of the CMOS drain mixer, a gate bias optimization method is proposed and successfully implemented in the mixer design. This mixer consumes zero dc power and exhibits a measured conversion loss of 5.5 plusmn1 dB from 0.8 to 77.5 GHz with a compact size of 0.67 0.58 mm2 . The output 1-dB compression point is -8.5 dBm at 20 GHz. To best of our knowledge, this monolithic microwave integrated circuit has the widest operation bandwidth among CMOS wideband mixers to date with good conversion efficiency and zero dc power consumption.