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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 會議論文  >  Modeling of Highly-Nonlinear HBT Characteristics using a Distributed Thermal Subcircuit Derived from Pulsed Measurements


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/13001


    Title: Modeling of Highly-Nonlinear HBT Characteristics using a Distributed Thermal Subcircuit Derived from Pulsed Measurements
    Authors: Hsu, Shawn S.H.
    Sawdai, Donald
    Pavlidis, Dimitris
    Date: 1999
    Publisher: Institute of Electrical and Electronics Engineers Inc.
    Keywords: Modeling
    Nonlinear
    HBT
    Pulsed
    Abstract: The nonlinear DC and RF properties of HBTs were modeled using a customized Gummel-Poon-based large signal model. The characterization and modeling techniques presented here were validated using PNP InP-based HBTs, which manifest highly nonlinear features. On-wafer pulsed DC measurements were performed on these HBTs in order to extract various second-order effects. These pulsed measurements indicated the presence of distributed thermal resistances and thermal capacitances. An analytical parameter extraction procedure was then used to extract model data from measured small-signal S-parameters and from the DC characteristics. Pulsed characteristics under different pulse widths and different substrate temperatures were employed to complete the model extraction. Good agreement was obtained between the modeled and measured DC, pulsed, small-signal, and large-signal microwave characteristics. The approach developed in this work is useful for modeling of highly nonlinear HBT characteristics, and it is directly applicable to the HBT power amplifiers often encountered in wireless communication circuits and systems.
    Relation Link: http://www.ieee.org/portal/site
    URI: http://nthur.lib.nthu.edu.tw/handle/987654321/13001
    Appears in Collections:[電機工程學系] 會議論文
    [電子工程研究所] 會議論文
    [奈米工程與微系統研究所] 會議論文

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