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Indian Institute of Technology (IIT) Patna 
Sunil Pandey and Jawar Singh 
Corresponding Authors:
Jawar Singh  
DOI #:
A 0.6V low-power and high-gain ultra-wideband low-noise amplier with forward-body-bias technique for low-voltage operations 
IET-UK Microwaves, Antennas & Propagation 
728 - 734 
inductors, low noise amplifiers, MIS devices, ultra wideband technology 
A two-stage common-source (CS) low-noise amplifier (LNA) that uses a forward-body-bias technique in N-type metal-oxide semiconductor devices and intended to achieve a high gain and low power consumption is proposed in this study for ultra-wideband (UWB) applications. Its first stage yields an exceptionally high gain because of high transconductance ( g m1 = 16 mS) of the input device. It also shows simultaneous wideband input matching and low-noise figure (NF) characteristics with the aid of source degenerated inductors. A simple source degenerated CS topology with the shunt-peaking inductor L d2 is designed as the second stage to enhance the gain response at high frequencies. Using a standard 90 nm complementary metal-oxide semiconductor process, the proposed UWB LNA achieves a gain S 21 ≥ 20 dB in the frequency range of 3.1-10.6 GHz, while consuming only 12.6 mW power from a 0.6 V supply voltage. The simulation results show a minimum NF (NF min ) below 1.7 dB in the frequency range of 3.1-10.6 GHz and input return loss S 11 <; -10 dB in the frequency range of 3.5-10 GHz. When a two tone test is performed with a frequency spacing of 2 MHz, a high value of third-order input intercept point of -8 dBm is also achieved.  
Entered by:
Venkata Dantham on 2020-08-04 
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