pHEMT small signal simulation using ADS

Discussion in 'The Projects Forum' started by ruby.n, Jun 12, 2007.

  1. ruby.n

    Thread Starter New Member

    Jun 12, 2007
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    0
    Could you please help me find how to simulate a pHEMT small signal model using ADS, and display its I-V and RF characterestics... I have no idea how to use ADS, and have to submit this project file by next week....

    I have the basic small signal model and the small signal parameters required. But I do not know how to simulate this model in order to display the required graphs. Your help will be greatly appreciated.

    Many thanks.
     
  2. ruby.n

    Thread Starter New Member

    Jun 12, 2007
    3
    0
    Can I use the small signal HEMT model in order to display the I-V and RF characteristics, or do I need to use a large signal model?
     
  3. ruby.n

    Thread Starter New Member

    Jun 12, 2007
    3
    0
    I need to submit a project that requires me to :

    1. Use TOM3 model to represent a pHEMT in ADS
    2. What exactly is the circuit diagram for the pHEMT?
    3. Using this, produce a DC simulation of I-V characteristics
    4. How is this done in ADS?
    5. From this how do I generate the h21, ft, and fmax parameters?

    I have not been given any circuit, or any device values. Please help.
     
  4. Yassin

    New Member

    Apr 28, 2008
    1
    0
    Hello , you can easily determine the small signal parameters of that pHEMT , if you have :
    1. The transistor S Parameters , for at least one bias point.
    2. you can use any optimization program ( like Genetic Algorithms ) to optimize the circuit elements.
    3. you can use MATLAB version R14 to do that job.

    good luck
    Amr Yassin
    PhD student
    Faculty of engineering
    Alexandria -Egypt
     
  5. Gabyrpg

    New Member

    Apr 11, 2009
    1
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  6. simulation11

    New Member

    Apr 26, 2009
    4
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  7. alan1

    New Member

    Jul 20, 2009
    1
    0
    Hello,

    That's great work. Your post is very informative and helpful. You have helped me to improve my poor knowledge about simulation of a pHEMT small signal model using ADS. Thank you.

    alan
     
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