【作者】 赵明付； 孙玲玲； 文进才； 康劲； 邹欢欢；

【Author】 Zhao Mingfu Sun Lingling Wen Jincai Kang Jing Zou Huanhuan (Microelectronic CAD Center,Hangzhou Dianzi University,Hangzhou,Zhejiang 310018,China)

【机构】 杭州电子科技大学微电子CAD研究所；

【摘要】 本文介绍了基于SMIC 0.18um CMOS工艺,应用于2.45GHz WLAN(无线局域网)的功率放大器的设计,给出了其仿真结果和电路版图。电路采用两级放大的结构,分别采用自偏置技术和电阻并联负反馈网络来缓解击穿电压的限制并保证稳定性。在3V电源电压下,增益为23dB,输出1dB压缩点为22 dBm,最大功率附加效率PAE高达40%。可应用于无线局域网802.11b标准的系统。更多还原

【Abstract】 This paper presents a design of a 2.45GHz CMOS power amplifier based on a SMIC 0.18um CMOS technology for WLAN system,and offering the simulation results and circuit layout.A two-stage amplifying structure is employed,and in particular,the self-biased technology and a resistor shunt negative feedback method are utilized for alleviating the effects of oxide breakdown and improving the stability,respectively.The PA operates at 3V power supply,with 23dB power gain,22 dBm P1dB and the maximum PAE is over40%.It can be used in IEEE 802.11b WLAN standard systems.更多还原