1.8 V高频CMOS可变增益放大器的设计，具有新颖的db线性增益结构

The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04. Pub Date : 2004-07-25 DOI:10.1109/MWSCAS.2004.1353913

Wei Hu, Seunghyun Song, Bongryul Choi, Jae-Whui Kim

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引用次数: 4

摘要

本文介绍了一种新型的db线性增益结构。基于这种结构，提出了一种高频高动态范围可变增益放大器(VGA)。VGA电路是为卫星接收器应用而设计的，工作频率从950 MHz到2.15 GHz。采用0.18 /spl mu/m CMOS技术实现了仿真结果，显示出良好的dB线性控制特性，动态增益范围为85 dB。

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Design of a 1.8 V high frequency CMOS variable gain amplifier with a novel dB-linear gain structure

In this paper, a novel dB-linear gain structure is introduced. Based on this structure, a high frequency and high dynamic range variable gain amplifier (VGA) is presented. The VGA circuit is designed for a satellite receiver application, operating from 950 MHz to 2.15 GHz. Simulation results were achieved using 0.18 /spl mu/m CMOS technology, and shown a good dB-linear control characteristic with dynamic gain range of 85 dB.

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来源期刊

The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04.

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