半导体学报2007，Vol.28Issue(9)：1364-1368,5.
基于802.11a标准的CMOS正交调制器和上变频器
CMOS Quadrature Modulator and Up-Conversion Mixer for 802. 11a Wireless LAN Systems
摘要
Abstract
A quadrature modulator and an up-conversion mixer for an 802. 11a 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.关键词
射频集成电路/CMOS工艺/正交调制器/上变频器/Gilbert单元Key words
RFIC/CMOS technology/quadrature modulator/up-conversion mixer/Gilbert cell分类
信息技术与安全科学引用本文复制引用
李文渊,王志功,毛银伟..基于802.11a标准的CMOS正交调制器和上变频器[J].半导体学报,2007,28(9):1364-1368,5.基金项目
Project supported by the National High Technology Research and Development Program of China (No. 2002AA1Z1600) 国家高技术研究发展计划资助项目(批准号:2002AA1Z1600) （No. 2002AA1Z1600）
