How to design the circuit for power Amplifier after selecting the transistor

Discussion in 'Digital Circuit Design' started by abinash subash, Jan 26, 2018.

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  1. abinash subash

    Thread Starter New Member

    Jan 26, 2018
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    I have chosen the transistor and selected the ADS software to design a power Amplifier. I need design a high power Amplifier of about 100W. Any suggestions and help to design the complete circuit of amplifier.
     
  2. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
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    How did you select a transistor without a circuit design?
    Sounds like homework to me.
     
  3. WBahn

    Moderator

    Mar 31, 2012
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    What is the actual assignment?

    How can anyone help you design an amplifier if all that is known is that it needs to be about 100 W?

    What is the basis by which you selected this transistor?

    How can anyone help you design a circuit around a specific transistor when you haven't told them what that transistor is?

    How does the selection of the ADS software impact the design of the amplifier?
     
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  4. MrChips

    Moderator

    Oct 2, 2009
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    You are missing some critical pieces of information.
    What is the frequency or bandwidth of operation?
    What is the impedance of the load?

    What are you driving, a loudspeaker, DC motor, heater, shaker table, ultrasonic transducer, laser diode, thermoelectric pile, RF antenna, etc., etc.?
     
  5. AnalogKid

    AAC Fanatic!

    Aug 1, 2013
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    A 100 W Ku band satellite transponder is difficult.

    EDIT: Actually, that was a good guess. On another forum it is an RF transistor, rated for 125 W and 3 GHz.

    ak
     
    Last edited: Jan 26, 2018
  6. abinash subash

    Thread Starter New Member

    Jan 26, 2018
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    I have attached the datasheet of the transistor. Iam designing it for jammer. I planning for a wide band amplifier

    Frequency from 20khz to 3GHZ
    Iam using it for antenna to build a jammer
    Impedance of load is 50Ohm

    W
    Which forum
     
    Last edited by a moderator: Jan 26, 2018
  7. ScottWang

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    Aug 23, 2012
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    This thread was violated with the TOS/UA and it will be closed.

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