| 一种应用于IEEE 802.11 b/g/n无线局域网收发机的CMOS模拟基带电路 |
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| 引用本文： | 龚正,楚晓杰,雷倩倩,林敏,石寅.一种应用于IEEE 802.11 b/g/n无线局域网收发机的CMOS模拟基带电路[J].半导体学报,2012,33(11):115001-7. |
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| 作者姓名： | 龚正 楚晓杰 雷倩倩 林敏 石寅 |
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| 作者单位： | Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Suzhou-CAS Semiconductors Integrated-Technology Research Center, Suzhou 215021, China;Suzhou-CAS Semiconductors Integrated-Technology Research Center, Suzhou 215021, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Suzhou-CAS Semiconductors Integrated-Technology Research Center, Suzhou 215021, China |
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| 摘 要： | 本文提出了一种应用于直接变频无线局域网收发机的模拟基带电路，该电路采用标准的0.13微米CMOS工艺实现，包括了采用有源RC方式实现的接收4阶椭圆低通滤波器、发射3阶切比雪夫低通滤波器、包含直流失调消除伺服环路的接收可变增益放大器及片上输出缓冲器。芯片面积共1.26平方毫米。接收基带链路增益可在-11dB至49dB间以2dB步长调节。相应地，基带接收输入等效噪声电压（IRN）在50 nV/sqrt(Hz) 至30.2 nV/ sqrt(Hz)间变化而带内输入三阶交调（IIP3）在21dBm至-41dBm间变化。接收及发射低通滤波器的转折频率可在5MHz、10MHz及20MHz之间选择以符合包含802.11b/g/n的多种标准的要求。接收基带I、Q两路的增益可在-1.6dB至0.9dB之间以0.1dB的步长分别调节以实现发射IQ增益失调校正。通过采用基于相同积分器的椭圆滤波器综合技术及作用于电容阵列的全局补偿技术，接收滤波器的功耗显著降低。工作于1.2V电源电压时，整个芯片的基带接收及发射链路分别消耗26.8mA及8mA电流。
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| 关 键 词： | 基带电路 CMOS WLAN 收发器 可编程增益放大器 IEEE 模拟 椭圆低通滤波器 |
| 收稿时间： | 5/1/2012 1:31:17 PM |
| 修稿时间： | 5/22/2012 4:12:57 PM |
CMOS analog baseband circuitry for an IEEE 802.11 b/g/n WLAN transceiver |
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| Gong Zheng,Chu Xiaojie,Lei Qianqian,Lin Min and Shi Yin.CMOS analog baseband circuitry for an IEEE 802.11 b/g/n WLAN transceiver[J].Chinese Journal of Semiconductors,2012,33(11):115001-7. |
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| Authors: | Gong Zheng Chu Xiaojie Lei Qianqian Lin Min and Shi Yin |
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| Affiliation: | Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Suzhou-CAS Semiconductors Integrated-Technology Research Center, Suzhou 215021, China;Suzhou-CAS Semiconductors Integrated-Technology Research Center, Suzhou 215021, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Suzhou-CAS Semiconductors Integrated-Technology Research Center, Suzhou 215021, China |
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| Abstract: | |
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| Keywords: | WLAN analog baseband active-RC filters PGA DCOC operational amplifiers |
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