Hybrid Load-Modulated Balanced Amplifier With High Linearity and Extended Dynamic Range
IEEE Microwave and Wireless Components Letters（2021）
摘要
A novel hybrid load modulation (LM) architecture of power amplifier (PA) is presented in this letter, in which three amplifiers are combined through a quadrature coupler in properly defined phase offsets. Together with the well-aligned turning-on sequence, the PA can operate as a Doherty PA (DPA) and load modulated balanced amplifier (LMBA) at different power levels, whose overall behavior is simi...
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关键词
Modulation,Linearity,Wireless communication,Prototypes,Microwave circuits,Loading,Hybrid power systems
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