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首页> 外文会议>IEEE International Conference on Recent Trends in Electronics, Information and Communication Technology >Performance Analysis of Various Topologies of Common Source Low Noise Amplifier (CS-LNA) at 90nm Technology
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Performance Analysis of Various Topologies of Common Source Low Noise Amplifier (CS-LNA) at 90nm Technology

机译：90nm技术中公共源低噪声放大器（CS-LNA）各种拓扑的性能分析

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摘要

One of the basic components in any radio frequency (RF) communication systems is Low Noise Amplifier (LNA). This paper compares various Common Source Low Noise Amplifier (CS-LNA) topologies based on their performance analysis. The three main common source LNA topologies that has been taken for the performance analyses are an inductively loaded Common Source LNA, a CS-LNA with feedback resistor and a CS-LNA cascode stage with inductive source degeneration. In this paper, all the three LNA's are designed for 1.57 GHz frequency which is generally used for Global Positioning System (GPS) applications. The performance of these LNA topologies are analyzed by comparing various aspects such as gain, Noise Figure (NF), S parameters, stability and linearity of each circuit. The simulations are done at 90nm CMOS technology by using Cadence Virtuoso Spectre RF. Out of the three topologies analyzed in this paper, the cascode CS-LNA with inductive source degeneration provides high gain and low noise figure at 1.57 GHz frequency and with 1.2 V power supply.
机译：任何射频（RF）通信系统中的基本组件之一是低噪声放大器（LNA）。本文基于其性能分析比较各种公共源低噪声放大器（CS-LNA）拓扑。已经用于性能分析的三个主要常见源LNA拓扑是一种电感加载的公共源LNA，具有反馈电阻的CS-LNA和具有感应源退化的CS-LNA共级阶段。在本文中，所有三个LNA都设计用于1.57 GHz频率，通常用于全球定位系统（GPS）应用。通过比较每个电路的增益，噪声图（NF），S参数，稳定性和线性等各个方面来分析这些LNA拓扑的性能。通过使用Cadence Virtuoso Specter RF，在90nm CMOS技术完成模拟。在本文分析的三种拓扑中，Cascode CS-LNA具有电感源退化为1.57GHz频率提供高增益和低噪声系数，并具有1.2 V电源。

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