基于802.11a协议的无线局域网低噪声放大器和改进的有源双平衡混频器
esign of LNA and improved active dual balanced mixer for 802.11a WLAN
本文提出了采用0.18um CMOS工艺，应用于802.11a协议的无线局域网接受机的低噪声放大器和改进的有源双平衡混频器的一些简单设计概念。通过在5.8GHz上采用1.8V供电所得到的仿真结果，低噪声放大器转换电压增益，输入反射系数，输出反射系数以及噪声系数分别为14.8dB，-20.8dB，-23.1dB和1.38dB。其功率损耗为26.3mW。设计版图面积为0.9mm*0.67mm。混频器的射频频率，本振频率和中频频率分别为5.8GHz，4.6GHz和1.2GHz。在5.8GHz上，混频器的传输增益，单边带噪声系数（SSB NF），1dB压缩点，输入3阶截点（IIP3）以及功率损耗分别为-2.4dB，12.1dB，3.68dBm，12.78dBm和22.3mW。设计版图面积为1.4mm*1.1mm。
his paper represents a simple prescription of LNA and improved new active dual balanced mixer for 802.11a WLAN with 0.18um CMOS technology. The conversion voltage gain of the LNA achieves 14.8dB, S11 is -20.8dB, S22 is -23.1dB and noise figure is 1.38dB, as shown in the simulation results with 1.8 V supply voltage at 5.8GHz, respectively. The power dissipation is 26.3mW. The die size of the LNA is 0.9mm*0.67mm. The RF, LO and IF frequency applied to the mixer are 5.8 GHz, 4.6 GHz and 1.2 GHz, respectively. This mixer achieves a conversion gain of -2.4dB, as well as a single-sideband noise figure (SSB NF), 1dB compression point, third-order input intercept point(IIP3) and power consumption of 12.1dB, 3.68dBm, 12.78dBm and 22.3mW at 5.8GHz, respectively. The die size of the mixer is 1.4mm*1.1mm.
沈懿、朱玉峰、赵亮、吴忠洁、黄风义
微电子学、集成电路无线通信电子电路
低噪声放大器，混频器，CMOS，无线局域网
LNAMIXERCMOSWLAN
沈懿,朱玉峰,赵亮,吴忠洁,黄风义.基于802.11a协议的无线局域网低噪声放大器和改进的有源双平衡混频器[EB/OL].(2008-04-14)[2025-08-04].http://www.paper.edu.cn/releasepaper/content/200804-502.点此复制
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