文章介绍了采用TSMC 0.18um CMOS工艺设计的2.4GHz WLAN (无线局域网)功率放大器，放大器采用并联拓扑结构设计，改善了功率附加效率（PAE）。在3.3V工作电压下，其压缩点输出功率为21dBm，最大输出功率22.3dBm，最大功率附加效率PAE高于38％，可应用于无线局域网802.11b标准的系统。关键词：无线局域网；功率放大器；CMOS；PAE中Abstract: This paper presents a design of a 2.4GHz CMOS power amplifier based on a TSMC0.18um CMOS technology for WLAN system. We present a power amplifier with a parallelstructure that improves power efficiency. With a supply voltage of 3.3V,its Pout1dB is 21dBm,the maximum output power is 22.3dBm,the maximum Power Added Efficiency( PAE) is over 38%. It can be used in IEEE 802.11b Wireless LAN systems.Keywords: WLAN；power amplifier；CMOS；PAE
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