This paper presents the low noise amplifier for ultra-wide-band applications.the UWB LNA is design in 0.18µm
CMOS technique to achieve low noise figure, low power consumption and high gain. To attain the low power
dissipation and low supply voltage,foldedcascode with current reused technique is utilized in first stage. Negative
feedback is adopted to extend the bandwidth. using the proposed technique, a maximum gain of 12.7 dB and minimum
noise figure of 2dB is achieved. The total power consumption is37 mW. S11 and S22 are less than -10 dB
