Miniature Wideband Amplifier Circuit

Posted on Dec 19, 2012

Except for the coupling and decoupling capacitors, IC1 is a complete wideband amplifier that has a fixed gain of 20 dB to 450 MHz. No external compensation is required. since the NE5205 functions as a gain block, two or more cart be easily cascaded to provide additional amplification. In this circuit, which uses two NE5205S, the overall gain is 40 dB.

Miniature Wideband Amplifier Circuit
Click here to download the full size of the above Circuit.

JF the power supply is fed through the signal-carrying coaxial cable, the amplifier can be mounted in a weatherproof enclosure directly at the antenna.

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