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一种应用于2.4GHz系统的F类功率放大器
资料介绍
基于0.5μmGaAsPHEMT工艺,设计一款能应用于2.4GHzISM频段的WLAN802.11b/g协议功率放大器。输出级采用负载线匹配的设计方法,并嵌入了对奇次谐波回收,偶次谐波抑制的网络,使之工作在F类,整机获得了较高附加效率。提出一种匹配计算方法与电路结构,兼顾输出功率和效率最大化,可对功率输出级进行优化匹配设计。该功放工作电压为5V,仿真结果表明:在2.4GHz频段内,1dB压缩点时的输出功率为31.7dBm,输出效率为51.8%,功率增益大于35dB,对高阶偶次谐波抑制大于47dB,对低阶奇次谐波进行了回收,获得了高效率。
A power amplifier applying the 2.4 GHz ISM frequency band and WLAN 802.11b/g protocol is designed based on the 0.5μm GaAs PHEMT technical process.For the output stage,the design method of load line matching is adopted,and the network with odd harmonics recycled and even harmonics suppressed is embedded so that the circuit can work in the F class,and the whole system can obtain relatively?high added efficiency.A matching calculation method and circuit structure is proposed.To make the output power and output efficiency maximum,optimization matching design is conducted for the power output stage.The working voltage of the power amplifier is 5 V.The simulation results show...
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| 文件名 | 大小 |
| 一种应用于2.4GHz系统的F类功率放大器.pdf | 2M |
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