Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6878982 | AEU - International Journal of Electronics and Communications | 2018 | 8 Pages |
Abstract
In this paper, a low power differential inductor-less Common Gate Low Noise Amplifier (CG-LNA) is presented for Wireless Sensor Network (WSN) applications. New Shunt feedback is employed with noise cancellation and Dual Capacitive Cross Coupling (DCCC) techniques to improve the performance of common gate structures in terms of gain, Noise Figure (NF) and power consumption. The shunt feedback path boosts the input conductance of the LNA in current reuse scheme. Both shunt feedback and current reuse bring power dissipation down considerably. In addition, the positive feedback is utilized to cancel the thermal noise of the input transistor. The proposed LNA is designed and simulated in 0.18â¯Âµm TSMC CMOS technology. Post layout Simulation results indicate a voltage gain of 16.5â¯dB with â3 dB bandwidth of 100â¯MHz-3â¯GHz. Also third order Input Intercept Point (IIP3) is equal toâ¯+â¯1 dBm. The minimum NF is 2.8â¯dB and the value of NF at 2.4â¯GHz is 2.9â¯dB. S11 is better than â13â¯dB in whole frequency range. The core LNA consumes 985â¯ÂµW from a 1.8â¯V DC voltage supply.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Afsaneh khabbaz, Jafar Sobhi, Ziaddin Daei Koozehkanani,