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Radio frequency power amplifying module with hetero junction bipolar transistor

机译:具有异质结双极晶体管的射频功率放大器模块

摘要

The present invention is directed to compensate electric properties of an RF power module depending on changes with time, temperature dependency, variations, and the like of grounded emitter current amplification factor of an HBT. A compound semiconductor integrated circuit supplies reference current of a reference HBT depending on hFE of an HBT to an input terminal of a first current mirror of a bias circuit of a silicon semiconductor integrated circuit. The base of an output HBT of the compound semiconductor integrated circuit is biased with bias current which increases in response to decrease in hFE of the HBT from an output of the first current mirror of the silicon semiconductor integrated circuit.
机译:本发明旨在根据HBT的接地发射极电流放大系数随时间的变化,温度依赖性,变化等来补偿RF功率模块的电特性。化合物半导体集成电路将取决于HBT的hFE的参考HBT的参考电流提供给硅半导体集成电路的偏置电路的第一电流镜的输入端子。化合物半导体集成电路的输出HBT的基极被偏置电流偏置,该偏置电流响应于来自硅半导体集成电路的第一电流镜的输出的HBT的hFE的减小而增加。

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