半导体学报2006，Vol.27Issue(4)：653-657,5.
一种解决无线局域网直下变频接收机直流漂移的方法
A DC-Offset Cancellation Scheme in a Direct-Conversion Receiver for IEEE 802. 11a WLAN
摘要
Abstract
A DC-offset cancellation scheme in a 5GHz direct-conversion receiver compliant with the IEEE 802.11a wireless LAN standard is presented. An analog feedback loop is used to eliminate the DC-offset at the output of the double-balanced mixer. The test results show that the mixer with the DC-offset cancellation circuit has a voltage conversion gain of 9.5dB at 5.15GHz, a noise figure of 13.5dB, an ⅡP3 of 7.6dBm, a DC-offset voltage of 1.73mV eliminating 76% of DC-offset,and a power consumption of 67mW with a 3.3V supply. The direct conversion WLAN receiver has been implemented in 0.35μm SiGe BiCMOS technology.关键词
直流漂移/无线局域网/BiCMOSKey words
DC-offset/WLAN/BiCMOS分类
信息技术与安全科学引用本文复制引用
许奇明,石寅,高鹏,胡雪青,颜峻,徐化,陈弘达..一种解决无线局域网直下变频接收机直流漂移的方法[J].半导体学报,2006,27(4):653-657,5.基金项目
国家自然科学基金资助项目(批准号:90207008,60536030)Project supported by the National Natural Science Foundation of China(Nos. 90207008,60536030) （批准号:90207008,60536030）
