摘要
采用0.18μm SiGe BiCMOS工艺,设计应用于无线局域网(WLAN)802.11b/g 2.4GHz频段范围内的AB类射频功率放大器.该放大器采用三级放大结构,偏置电路采用电流镜形式的自适应偏置控制电路,具有温度补偿和线性化作用.后仿真结果显示:1dB压缩点输出功率高达27.73dBm,功率增益为25.67dB,电路的S参数在2.4GHz频段内,输出匹配S22小于-10dB,S12小于-60dB.
A RF power amplifier was designed for WLAN 802.11 b/g 2.4 GHz based on 0.18 /~m SiGe BiCMOS technology. The PA consists of three stage amplifiers working in Class AB. Adaptive bias circuit based on current mirror was used, with temperature compensation and linearization. The post-layout simu- lation results showed that the designed power amplifier had an output of 1 dB, a compression point of 27. 73 dBm, a power gain of 25.67 dB, an $22 of less than -- 10 dB and an S12 of less than -- 60 dB in 2.4 GHz.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第10期56-59,共4页
Journal of Hunan University:Natural Sciences
基金
国家科技重大专项项目(2011ZX02503)
湖南省科技计划资助项目(2011GK3129)
