An inductorless wideband LNA with a new noise canceling technique

Authors : Pouria Pazhouhesh MOGHADAM, Adib ABRISHAMIFAR

Pages : 1147-1153

View : 15 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :An inductorless wideband low-noise amplifier insert ignore into journalissuearticles values(LNA); employing a new noise canceling technique for multistandard applications is presented. The main amplifier has a cascode common gate structure, which provides good input impedance matching and isolation. The proposed noise canceling technique not only improves the noise figure and power gain but also embeds a g$_{m}$-boosting technique in itself, which reduces the power consumption of the main amplifier. Using current-steering and current-reuse techniques in the noise canceling branch makes the design realizable and low power. The proposed LNA is simulated and optimized in 0.13 $\mu $m CMOS technology. The LNA achieves a noise figure of 2.8-3.4 dB, power gain of 19.2 dB, and input impedance matching better than -10.5 dB over bandwidth of 0.04-4.6 GHz. It consumes only 8.5 mW from 1.2 V supply voltage, which makes it a low power LNA.
Keywords : Current reuse technique, G m boosting technique, low power LNA, noise canceling technique