Article ID Journal Published Year Pages File Type
4962559 Procedia Technology 2016 7 Pages PDF
Abstract

This paper presents the performance comparison of two Low Noise Amplifiers (LNA), a basic Cascode and a modified cascode LNA for IEEE 802.11b protocol, WLAN. A modified cascode LNA with dual Common source transistors is designed and the performance parameters are compared with a designed basic cascode stage. The modified cascode stage has a high gain of 19.2dB and an optimized noise figure of 0.416dB at 2.4 GHz and at a supply voltage of 1.8V. The S11 is -13.74dB, S22 is -0.87dB and S12 is -43.63dB. The P1dB is -18.35dBm and the IIP3 is -8.42dBm. The LNA is designed to be stable over 2-3 GHz range. The power consumption of the circuit is 8.1mW. The modified cascode LNA is having around 10% improvement in gain and a 40% reduction in noise figure compared to the basic Cascode LNA. The simulations are done in cadence virtuoso Spectre RF using 180 nm technology.

Related Topics
Physical Sciences and Engineering Computer Science Computer Science (General)
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