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Recent content by jamez

  1. J

    wideband coupler design in ADS

    wideband coupler Hi, It is a large size even using a multiple finger Lange coupler, a bended caxial coupler may be ok.
  2. J

    S-parameters - an ideal value?

    Hi GaAs FET , We cannot download it.
  3. J

    basic question - what is predistortion?

    Hi, and how for a pow amp?
  4. J

    S-parameters - an ideal value?

    :D Hi, How can I get S-parameter in a HPA and how get it's K value?
  5. J

    filter harmonic pass band

    Hi, How to block filter harmonic pass band hurt me. Help me,pleas.
  6. J

    90 degree phase shifter

    :D Hi, In a High\low filter network you can use a single pin diode do the 90 degree phaseshift.I have do it as 90 45 22.5 and so on.
  7. J

    Which type of notch filter is best for GSM band?

    synthesis engine for me is elliptic
  8. J

    Which type of notch filter is best for GSM band?

    Hi, I really simulate a filter by hfss,and it really run good. But for crossover coupling I have good synthesis engine. I contact with wavecon, but it's email can't run. good lucky.
  9. J

    CST Design Studio 2 Invalid password. (Code 106)

    Hi, I am out for a short time, sorry. try that "SERVER kkk ANY 27000" change as "SERVER kkk ANY 27005" good lucky.
  10. J

    Which type of notch filter is best for GSM band?

    :D Hi , I suggest u deal it with a shorted interdigital config in rod coxial line way. by the way, How can I get a free Parfil , can U help me? james
  11. J

    HFSS error: initial error for hfss.exe(0xc000142)

    error when run hfsss 8) Hi friends, It is give that "initial error for hfss.exe(0xc000142)" when I run hfss. How about that, and what can I do? Help me, thanks. jamez
  12. J

    which eda tools is better for RF filter design?

    :D dear filterman, How can get PCFILT /SFILSYN ? thanks much.
  13. J

    step attenuator and Rf protection circuit

    :o Please visit agilent site,there are many examples.
  14. J

    CST Design Studio 2 Invalid password. (Code 106)

    :D Hi, Maybe conflict with other license in the flexm. Try different usernumber in license file.
  15. J

    Comparison of MMICAD with Genesys

    :D Hi How about MMICAD?
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