中国科学院研究生院学报2013，Vol.30Issue(2)：233-237,5.DOI:10.7523/j.issn.1002-1175.2013.02.014
一种应用于WiMAX接收机的CMOS可变增益放大器
A CMOS variable gain amplifier applying to WiMAX receiver
摘要
Abstract
A single-stage variable gain amplifier for WiMAX receiver is implemented. By adopting current squaring technique, the VGA provides a large variable gain range compared to other single-stage VGAs. As a result, the proposed structure can achieve a given variable gain range with less stages and the whole power consumption is reduced. The chip is fabricated in 0. 13μm CMOS process, occupies 0. 6×0. 4 mm2, and consumes 3. 6 mW power from 1.2 V supply. Experimental results show that a continuous gain range from - 20 dB to 25 dB is achieved when the control voltage varies from 0. 5 V to 1 V. Furthermore, the VGA provides a 3 dB bandwidth greater than 15 MHz and the measured IIP3 value is in the range -21 dBm to 5 dBm.关键词
WiMAX无线接收机/CMOS/可变增益放大器/电流平方Key words
WiMAX receivers/CMOS/variable gain amplifier/current squaring分类
信息技术与安全科学引用本文复制引用
程心,杨海钢,高同强,尹韬..一种应用于WiMAX接收机的CMOS可变增益放大器[J].中国科学院研究生院学报,2013,30(2):233-237,5.基金项目
国家高技术研究发展计划(863计划)(2012AA012301)和国家自然科学基金(61106025)资助 （863计划）
