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Recent content by fizi

  1. F

    How to reduce the length of antenna???

    i think it's better to use other kinds of antennas ,like a radio you can use loops with ferrite core as your frequency is low other kinds will have larg dimentions regards
  2. F

    antenna array on 60GHz

    i think patch antennas aren't useful in this case since their losses increas as you increase frequncy, i think reflector antennas are suitable collin antenna book is helpful regards
  3. F

    low frequency band=/ low gain?

    you know , larger the physical dimentions related to wavelength more gain for antennas, as you decrease the fequncy and so increase lambda the gain naturally decreases. it is the reason . regards
  4. F

    Looking for materials on double stub tuning

    dubble stub tuner a vary good book is "microwave engineering" by Pozar hope to be helpful regards
  5. F

    Help needed in designing active matching network

    hi have you seen "microwave engineering"by popzar. i think it will be useful. regards
  6. F

    Looking for materials about stubs

    Re: STUBS in which freuency band do you work? it is important. regards
  7. F

    Designing X-Band LNA in ADS

    i am designing lna with ADS,i have problems since i cann't get tor NFmin the company has mentioned.nither the Sopt. also i have some problems with matching network . i need a tutorial.any suggestion? thanks

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