40mhz rf amplifier circuit


Posted on Feb 6, 2014

This is the 40Mhz RF amplifier circuit. The sensitivity of a receiver may be significantly increased if this circuit is inserted between the receiver and the antenna. The amplifier circuit does not use resonant circuits and is suitable for both medium and for the short waves, up to 40 MHz. The gain of this RF amplifier is 20db and it consumes 7mA


40mhz rf amplifier circuit
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electric current, when it is supplied with 12 until 15V dc. The input and the output should be connected with coaxial cable, resistance 75ohm. 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.




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