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应用于LTE band1的高效率功率放大器设计

Design of High-efficiency Power Amplifier for LTE
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摘要 设计了一种应用于LTE band1的带有自适应线性化偏置电路的高效率双链式HBT功率放大器。该电路基于InGaP/GaAs HBT工艺设计,通过控制偏置电路电压来选择高功率和低功率模式,对高功率模式仿真和测试结果进行分析。通过调试,最终高功率模式输出功率为28dBm时,增益为27.5dB,功率附加效率为43%,ACPR为-38dBc。在低功率模式输出功率为16dBm时有21%的功率附加效率。 A double chain HBT power amplifier with high efficiency applied in LTE band1 is presented.The circuit structure is designed based on InGaP/GaAs HBT technology,and the high power or low power mode can be selected through regulating the bias circuit voltage.The testing results show that for cell band in the high mode,43% PAEand-38 dBc ACPRare achieved at+28dBmPout,while in the low mode,21% PAEis obtained at+16dBmPout.
作者 刘祖华
出处 《固体电子学研究与进展》 CAS CSCD 北大核心 2014年第5期450-454,共5页 Research & Progress of SSE
关键词 长期演进 功率放大器 铟镓磷/砷化镓异质结双极晶体管 功率附加效率 long-term evolution power amplifier InGaP/GaAs heterojunction bipolar transistor(HBT) power added efficiency(PAE)
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