CMOS Quadrature Modulator and Up-Conversion Mixer for 802.11a Wireless LAN Systems

作     者：李文渊 王志功 毛银伟 

作者机构：东南大学射频与光电集成电路研究所南京210096 

基　　金：国家高技术研究发展计划资助项目(批准号:2002AA1Z1600)~~ 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2007年第28卷第9期

页      码：1364-1368页

摘      要：A quadrature modulator and an up-conversion mixer for an 802. lla wireless LAN system are designed and fabricated in 0.18μm gate length standard CMOS technology. A current feedback loop with a transconductor is used to improve the linearity of the quadrature modulator;An LC resonant tank is used as the load of the upconversion mixer to improve its gain and increase the voltage swing. The measurement results show that the input P1dB achieves -3.6dBm, the transducer power gain of the circuit is -3.6dB,and the current consumes about 45.8mA with a 1.8V power supply.

主 题 词：RFIC CMOS technology quadrature modulator up-conversion mixer Gilbert cell 

学科分类：080902[080902] 0809[工学-计算机类] 08[工学] 

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