The invention discloses a high-
linearity broadband stacking
low noise amplifier based on a
gain compensation technology. The high-
linearity broadband stacking
low noise amplifier comprises a two-stacking
low noise amplification network, an interstage matching network and a two-stacking
gain expansion amplification network which are connected in sequence; and a first power supply bias network and a second power supply bias network which are connected with the two-stacking low
noise amplification network and the two-stacking
gain expansion amplification network. According to the high-
linearity broadband stacking
low noise amplifier, a serial stacking structure is realized through adoption of two transistors with different sizes and ultra
wide band noise and
impedance matching are realized through combination of an RLC feedback network; through utilization of the
gain compression compensation technology, the
gain compression property of the two-stacking low
noise amplification network is cancelled within a certain bias range through the two-stacking gain expansion amplification network and a linearity index of the
amplifier is improved, so the whole
low noise amplifier has good broadband, linearity, low
power consumption and low noise amplification capability; and moreover, the low
breakdown voltage property of an
integrated circuit technology is avoided and the stability and reliability of a circuit are improved.