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- W94496618 abstract "With the development of wireless communication systems, multi-carrier, broad band, and high transmission rate has become the development direction. To adapt to the modulation signal with high PAPR (peak to average power ratio) we propose an asymmetrical Doherty amplifier with wide bandwidth and high efficiency for LTE communication system in this paper. First, we analysis the factor of the VBW, and optimize the drain bias circuit. After optimization, the VBW is improved about 1.4 times and the amplifier will be more adaptable to the wide LTE signal. Second, we optimize the combiner structure to modulate the load impedance completely. Third, we design the asymmetrical Doherty with uneven power drive and different LDMOS devices with the optimized combiner structure. The efficiency is improved about 5% with 7 dB back-off, comparing with the traditional asymmetrical Doherty at 1.95 GHz." @default.
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- W94496618 date "2012-10-16" @default.
- W94496618 modified "2023-09-25" @default.
- W94496618 title "Optimization Design of Bias and Combiner Circuit for Asymmetrical Doherty Power Amplifiers" @default.
- W94496618 doi "https://doi.org/10.1109/icecc.2012.607" @default.
- W94496618 hasPublicationYear "2012" @default.
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