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Recent content by woshifanka

  1. W

    a question about HFSS result

    Dear costox : thank you for your advice. yes , its my fault. rgz
  2. W

    [help] is there any more websites about antenna's article ?

    i have not been this forum for a long time . but thank you all very much. :)
  3. W

    References on types and structures of UWB antennas

    Re: UWB Antenna hi yes , frequency independant antennas are uwb antennas , but for the "modern "UWB radio system which occupy the band from 3.1-10.6GHz, the UWB antennas must have low dispersion as excited by Gaussian impluse , generally speaking , frequency independant antennas are not the...
  4. W

    IE3D-regarding dielectrics

    you should specify the magnitude of Er in the "basic parameters " i remember in the frontal three chapters there are some examples . rgz
  5. W

    IE3D-regarding dielectrics

    to mailgvenkat: hi , i think you should read the ie3d manual firstly , in it you can find your answers. if you have no the manual now , you can download it from www.zeland.com . hope helps. kaka
  6. W

    How run these files, in Matlab or Femlab?

    HOW TO RUN THESE FILES open Matlab the "file-->import " do you have the try? hope this can be helpful Added after 14 seconds: open Matlab then "file-->import " do you have the try? hope this can be helpful
  7. W

    question about filter design

    well, if you could upload you model here , i will ask my friend to help you . rgz kaka
  8. W

    UWB antennas & ADS

    hi helio: nice to see you here again , but can you tell me why you use ADS instead of HF$$ ? if your problem is just how to set he partial ground ,it can be achieved. rgz kaka
  9. W

    Problem about LNA Simulation in ADS!

    Problem about LNA Simulation in @DS! dear dopradar could upload your.jpg again , as it seems to me that the link is bad and pops up : the file doest exit 3x kaka
  10. W

    Need Matlab program for antenna simulation

    with matlab yes, it's a good book writen with Matlab code,which you can use pde toolbox(2D) or matlab code(2 or 3D) to draw antenna model, it is based on RWG . but it is so hard to use matlab to draw a complicated antenna model.
  11. W

    a question about HFSS result

    set the airbox lambda/4 larger where the lambda is the min (not max) lambda of your interested band
  12. W

    Question about the Print Antenna

    hi i think ie3d can do the work. and if Mr. Jian is here , he would give your the full answer . rgz
  13. W

    planar antennas for wireless communications" by Kin-Lu

    hi , you can search this book in this forum , i remember there is a ebook you can download . rgz
  14. W

    I think SONNET is a very perfect EM simulator!

    ie3d is also excellent , i think :)
  15. W

    How to determine the frequency setup of UWB antenna in HFSS?

    UWB & HFSS Dear smnobo: my friend and i discussed this problem , and in my opinion : the "solution frequency" is very important to UWB antenna , you know , if it is a frequency fixed MS antenna(has a center frequcny,when you design it ,for example) , the "solution frequency" is just fr, but...
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