Miniature Wideband Amplifier Circuit

  
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 - schematic

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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