2W RF Amplifier with MOSFET LF2810A circuit diagram


Posted on Feb 5, 2014

Figure A is the schematic of the microstrip single stage RF amplifier. The amplifier is based on the M/A-Com LF2810A MOSFET. The transistor is actually a 10 watt, 28 volt part, but provides adequate gain for this application at 12 VDC. The amplifier provides greater than 40% efficiency at the desired output power. Trimmer capacitors are used for i


 2W RF Amplifier with MOSFET LF2810A circuit diagram
Click here to download the full size of the above Circuit.

nput and output matching. Output power is adjusted by a trimpot which sets the gate bias voltage. Figure B is the layout for the microstrip circuit board. The board material is 0. 030 inch Duroid. The circuit board is compression soldered onto a similarly sized copper heat spreader. The board and spreader are milled and drilled to accept the flange-mount transistor.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Beeper driver with 555
    Scr Circuit With Self-Interrupting Load
    Peak Detector
    Ne602 Direct Conversion Receiver Circuit
    interface and program lcd to
    speak spell
    flip flop led flashing circuit
    Telephone line monitors
    40 MHz Wideband RF Amplifier
    Flyback Transformer Drivers
    Description of an active reversible in-phase/quadrature modulator carrying out frequency UDC
    Precision frequency counter
    Digital sine wave generator
    Electric thermos temperature detection control circuit



    Top