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Recent content by LE YAO

  1. L

    phase array + frontend transceiver design

    Yeah,but if phase shifter affect impedance matching how to handle it? Thank you in advance
  2. L

    A question on balun tuning

    yeah,you are right.i saw this kind of design solution. content your talking is very useful! best wishes yours le yao
  3. L

    About VCO Design Examples in ADS

    vco simulation ads thank you for sharing your experience! best wishes yours le yao
  4. L

    Help me decrease an unknown noise in PCB

    Noise in PCB professional ideas
  5. L

    What is DECT?how to design DECT phone with SITEL BBIC?

    yeah,i know this web. but i need actual solutions,i am going to design a set of production.if you have some good ideas,please inform me. thank you in advance
  6. L

    pls give me some ideas on how to design the filter with?

    I am sorry for this. I need some professional suggestions about how to handle complex relations between RF filter and impedance matching. RF signal from PA need a filter,but i must consider the impedance matching.It always confused me.I have no ideas. Thank you in advance.
  7. L

    any advices about how to design the balun?

    thank you very much,i will go to find it in book store. maybe it is a bit expensive!
  8. L

    any advices about how to design the balun?

    thank you very much. but what i want to know is how to design these balun,could you give me some ideas?
  9. L

    Where do you from and how many languages speak?

    I come from zhuhai city,guangdong province,china. as for langugae,only chinese and english,japanese a little.
  10. L

    We are all from China

    From China your ideas maybe right.i am a new guys. i am working in zhuhai,now i am on a trip in fukuoka,japan. nice to see you,hope to make friends with you. best wishes Added after 35 minutes: Your idea is very interesting. For myself,i am a new guy to EDAboard.You know that...
  11. L

    Buying components from China? Not a chance

    Re: China? Not a chance i understand your problem.you are right,there is so many points need to improve in china.in fact,we are tring our best to handle these,we need time. about business rules you refer,i am sorry that you should accept.you know there are so many pcb fabrications in...
  12. L

    Latest RF tutorial uploaded

    iip3 tutorial thank you for your information i am a new guy,i don't know where should i go to find your tutotial? best wishes
  13. L

    pls give me some ideas on how to design the filter with?

    Frequency range 1880MHz---1900MHz My VCO working frequency is almost 3.8GHz,so i must control the 2nd harmonic radiation. What i need is some solutions about how to design the filter with impedance matching.Sometimes i can find out good filter circuits,but impedance mis-matching. Please give...
  14. L

    any advices about how to design the balun?

    Thank you very much. Where are you now?I am working as PE for DECT phone at ZhuHai.Now,i am on a trip at Fukuoka.Japan. I am a new guy about this system,i am glad if i can make friends with you. Added after 19 minutes: thanks for you advices frequency range 1880MHz---1900MHz...
  15. L

    What is DECT?how to design DECT phone with SITEL BBIC?

    What is DECT?how to design DECT phone with SITEL BBIC? Its design work flow is difficult for me,espeically for RF models and software.I need your kindly advices. best wishes
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