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Recent content by asoscjn

  1. A

    Designing a broadband matching network

    Re: broadband matching do you try use more stage to do the matching. for example , use two LC circuit
  2. A

    Envelope elimination and restoration

    This is a very hard tech, and now maybe the gate modulation doherty and the ET is the next main tech.
  3. A

    P1db flatness of power amplifier

    1dB difference from 2110MHz to 2170MHz. The P1dB in 2110MHz is 1dB higher than other freq point. but the P1dB in 2140 to 2170 is the same. And this device is designed for PCS and TD freq band ,we want to use it in WCDMA band, and the device is two stage.
  4. A

    P1db flatness of power amplifier

    dear all, How can i to design a match to make P1dB flatness from 2110MHz to 2170MHz, Now the 2110MHz is 1dB higher than 2170MHz
  5. A

    impedance matching of power amplifier

    How can we drive up the gain at high freq band? If the gain is monotone falling from 2110MHz to 2170MHz.
  6. A

    power amplifier...need help...

    If you want to improve the efficiency, you can use doherty tech But improve efficiency will lead to the degressive of linearity.
  7. A

    need software to measure S-parameters

    guys, do you know how to test S-parameters in practise? I think the s-parameter which is given by manufactory is limited in simulation.
  8. A

    Latest Research Areas in Microwave????

    what about EER? Can it be used in volume-produce
  9. A

    What class of pwer amplifier?

    I think DPD add doherty is the common method in current time
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