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Recent content by ChaoFan

  1. C

    How to transfer S11 plot to word?

    just copy it to word
  2. C

    Cgs Cgd Which one is more important for Class-AB pa design?

    hi, I think Cds is more important then Cgs, especially for Eff, Pout, wideband performance.
  3. C

    [SOLVED] 160m mosfet linear amplifier problem with ferrite cores

    Hi You can't use 43 up to 160Mhz. Obviously it will be broken.... Any more, that's why you can't get higher power. You can try 61.. Good luck.
  4. C

    Working in 4W (36dBm Power out in RF) at 200 to 250MHz

    Don't worry, 4w is so low power for PA! I remend you a transistor BLF571 to design.
  5. C

    Plz help on 3 in 1 combiner design

    freq is about 600mhz. Thanks!
  6. C

    Plz help on 3 in 1 combiner design

    Plz help on 400W 3 in 1 combiner design, any article is better. And is there anyone can help me to caculate the impedance of every section of Gysel combiner? Thanks!
  7. C

    need help about LDMOS PA design

    That is for higher VBW band.
  8. C

    What is Common-mode resonance in power amplifier?

    DEAR Garbonzo, Thank you very much!
  9. C

    What is Common-mode resonance in power amplifier?

    Is there any article about Common-mode resonance? and how to avoid it in PA? Thanks.
  10. C

    VHF RF modules like radiometrix

    VHF RF modules you can design one yourself.
  11. C

    Looking for help on design a OFDM wideband PA

    I think maybe you'd better to try this design using BLF571 which can work up to 900mhz. BLF571 is a 20W device.
  12. C

    [SOLVED] Help for pushpull amplifier

    Thank you! However, they don't ship free samples to small company...... Added after 1 minutes: In my opinion, you can try BLF574, I think it's linearity is better due to my experience.
  13. C

    How you guys think the performance of AL wires?

    Thanks Vfone, Is there anything else? Considering more the high duty, narrow pulse width pulse signal.
  14. C

    [SOLVED] Help for pushpull amplifier

    what is the price of this transistor?
  15. C

    How you guys think the performance of AL wires?

    How you guys think the performance, relibility of AL wires comparing to Gold wires inside the high power pulse amplifier? Thanks!
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