A LOW–POWER WIDEBAND LOW NOISE AMPLIFIER FOR BROADBAND WIRELESS APPLICATION

ELECTRONICS & COMM

A low power wideband low noise amplifier (LNA) for 1GHz to 10GHz wireless application presented low power consumption. A broadband Low-Noise-Amplifier LNA is presented and designed based on Resistive shunt feedback, current reuse, and gain flatting and inductive feedback technique. A current reuse scheme to lower the power consumption, along with inductive series peaking in the feedback path to increase the bandwidth, are analyzed and employed in LNA. In the low power wideband, LNA has considered low power consumption resistive shunt feedback low noise amplifier (LNA), current reuse, gain flatting technique, and inductive feedback technique for improving the deflection used high mobility electron transistor for further improvement in noise figure (NF) and s-parameter. Resistive shunt-feedback is a viable option for low power wideband LNA provides wideband input matching with the aid of feedback network. The current reuse inverter-type input facilitates doubling the effective transconductance without any extra power consumption or deterioration of output conductance.Inductive series peaking technique use to enhance the gain, input matching and noise performance. The LNA presented here achieves the lowest power consumption and employs the lowest supply voltage, when compared with other works. It also offers comparable performance in terms of gain, NF, and linearity. The LNA operates over the bandwidth of 1–10 GHz and achieves a minimum NF of 4.31 dB while consuming only 0.69 mW from a 0.5-V supply voltage. The parameters like gain input matching, output matching, reverse isolation and stability are examined by S-parameters. The Broadband low noise amplifier achieve input impedance matching S11< -22.4dB and S12< -72 for BW 1 GHz to 10GHz.

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