Tuesday, June 14, 2011

50MHz 300W MOSFET Amplifier Circuit

The following is the circuit of RF amplifier based on MOSFET. This amplifier will deliver very high power of 300W for radio frequency of 50MHz-51Mhz.

Schematic Diagram:
50MHz 300W MOSFET Amplifier Circuit diagram

The component part list for this RF amplifier circuit, you can check inside the 50MHz 300W MOSFET Amplifier Circuit document.

Component Placement:
50MHz 300W MOSFET Amplifier component layout

PCB Layout:
50MHz 300W MOSFET Amplifier pcb layout

Technical Details:
  • Frequency range: 50 to 51 MHz
  • Input VSWR: < 1.5:1
  • Gain: >13 dB
  • Output Power: 300 W PEP or CW
  • Efficiency: > 50%
  • IMD3: < -25 dB below PEP

Download 50MHz / 300W MOSFET Amplifier Circuit complete document HERE

About RF Amplifier
An RF power amplifier is a type of electronic amplifier which is utilised to convert a low-power radio-frequency signal into a larger signal of significant power, usually for driving the antenna of a transmitter. It is usually optimized to have high efficiency, high output Power (P1dB) compression, good gain, good return loss on the input and output, and optimum heat dissipation.

The basic applications of the RF power amplifier include driving to another high power source, driving a transmitting antenna, microwave heating, and exciting resonant cavity structures. Among these applications, driving transmitter antennas is most well known.
More explanation about power audio amplifier can be found at wikipedia.org
This is a demonstration about 01A RF Amplifier which is build used old tube component to amplify the signal.

Watch the video:

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