| 摘要 |
PURPOSE: A low noise amplifier is provided to reduce a noise and generation of heat in a state of expanding a bandwidth by forming a negative feedback which a resistance element is removed. CONSTITUTION: A common gate amplifier circuit(120) amplifies a signal of a first node(N1). The command gate amplifier circuit transmits the amplified signal to a second node(N2). The first node receives an AC(Alternating Current) element of an input signal. The common gate amplifier circuit includes an input capacitor(Cin), a bias inductor(Lb), and a first transistor(TR1). A negative feedback amplifier(140) amplifies a signal of a second node. The negative feedback amplifier circuit transmits the amplified signal to a third node(N3). The negative feedback amplifier circuit forms a second node and a third node. |
