This paper is the use of the active inductor instead of passive inductors to save area, enter the match aspects of the use of the feedback capacitor in parallel with the resistor to achieve matching with the control input voltage, in addition to adjusting the feedback resistor can control the noise. The LNA dissipates 13.2 mW power and achieves input return loss (S11) below -10dB, output return loss (S22) below -10 dB, forward gain (S21) of 11.3~14.5dB, reverse isolation (S12) below -40dB, and noise figure (NF) of 3~3.18 dB. 1-dB compression point (P1dB) of -24 dBm and input third-order inter-modulation point (IIP3) of -14 dBm .