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    4:1 coax cable balun

    Hi,everyone,In this picture,we can see the PA circuit board.The input port has a balun with transformer (4:1) using a ferrite,and the output has the 4:1 coax cable transformer and the coax cable balun. The frequency is 50MHz to 75MHz. I have two question for your help, thank you very much. The...
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    [SOLVED] Help me to design the RFPA,Thanks!

    Hello,I am trying to design a discrete RFPA to put out greater than or equal 25 dBm(P1dB) at 2.4~2.5 GHz and gain is greater than equal 26 dB for very low cost as far as possible .The operation voltage is 3.3 V .Anyone have some design suggestions? Thank you very much!

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