A Fully Integrated Low Power Transmitter in an 802.11b Transceiver System  

802.11b收发系统中的全集成低功耗发送机设计(英文)

作　　者：夏玲琍[1] 李伟男[1] 郑永正[1] 黄煜梅[1] 洪志良[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海201203

出　　处：《Journal of Semiconductors》2008年第9期1753-1757,共5页半导体学报（英文版）

摘　　要：A fully integrated low power transmitter for an IEEE 802. llb transceiver system is implemented in SMIC 0.18μm technology. The direct-conversion transmitter includes two Chebyshev I low pass filters,two PGAs,a SSB mixer, and a PA driver. The transmitter provides a gain control of 32dB in 3dB steps. The maximum output power is - 3.4dBm and the EVM is 6. 8%. The power consumption of the transmitter is only 57.6mW with a 1.8V power supply. The chip area of the transmitter is 1.6mm × 1.6mm.基于SMIC 0.18μm CMOS工艺,设计了一个应用于IEEE802.11b收发系统的全集成低功耗发送机.直接转换发送机包括两个Chebyshev I型低通滤波器,两个可编程增益放大器(PGA),一个单边带混频器和一个功率预放大器.发送机以3dB为步长提供32dB增益,其最大输出功耗为-3.4dBm,EVM为6.8%.工作在1.8V电源电压,发送机的功耗仅57.6mW.发送机芯片面积为1.6mm×1.6mm.

关 键 词：802. 11b DIRECT-CONVERSION class A ＆ C amplifier 

分 类 号：TN839[电子电信—信息与通信工程]