Wednesday, June 1, 2011

2W RF Amplifier

The following diagram is the schematic diagram of the microstrip single stage RF amplifier.

electronic circuit diagram

The RF amplifier is designed based on the M/A-Com LF2810A MOSFET. The transistor is basically a 10 watt, 28 volt part, but supplies sufficient gain for this application at 12 VDC. The amplifier delivers higher than 40% of efficiency in the desired output capability. Trimmer capacitors are applied for input and output matching. Output power is altered by a trimmer potensiometer (trimpot) which sets the gate bias voltage.

RF Amplifier circuit source:

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
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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