WIDE-BAND LOW NOISE AMPLIFIER

摘要

PURPOSE: A wideband low noise amplifier is provided to improve a noise property by reducing a noise index and facilitate an ultra wideband input matching. CONSTITUTION: A common gate amplifier(110) amplifies an input signal inputted to an input terminal and outputs the amplified signal to an output terminal. A cascade amplifier(120) amplifies the output voltage of the common gate amplifier inputted to the input terminal and outputs the amplified voltage to the output terminal. A source following buffer(130) outputs the output voltage of the cascade amplifier inputted to the input terminal to reduce signal attenuation.