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Recent content by wangjianhui

  1. W

    Who can tell me the difference between Notch filter and Trap filter

    anyone know it? what's the different target applicatioon? thanks
  2. W

    PCB Layout Considerations

    gigabit ethernet pcb routing A great sharing, thanks and keep it update!
  3. W

    Please explain this sentence for me...Thank you ~~~

    The purpose os this layout implementation is decrease the current loop to avoid inteference from the other current loop which is also used the path or partion of the path.
  4. W

    help to design a broadband amplifier(400~850MHz)

    Hello Carrier I had listed spec of the amplifier, what do you want to know?tell me pls and thank you for your interesting.
  5. W

    help to design a broadband amplifier(400~850MHz)

    Thank you,but i think there's something different from my requirement.eg.operating voltage gain...
  6. W

    help to design a broadband amplifier(400~850MHz)

    I am a newer for amplifier designing,I will appreciate anyone who can give me some hints about it or some reference designs. Here is some spec of the design: Parameter specification@25ºC Operating frequency 400MHz~850MHz Max output power...
  7. W

    [SOLVED] who knows TDMA noise.

    tdma noise TDMA noise maybe always mentioned in audio loop. when a mobilephone is worked ,transmitter enabled once every eight time interval,it's period is about 216.7Hz.so it can be interfere with the audio loop. We can solve it with good layout in audio loop and in circuits we always shunt a...
  8. W

    Needing good paper on Power Amplifier(RF) design

    Give your Emai adress and i will seng you some

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