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- W2022939466 abstract "This paper presents the analysis and design of a wideband asymmetrical Doherty amplifier. The frequency response of the output combining network of the Doherty amplifier with arbitrary back-off level configuration is analyzed. Other bandwidth-limiting factors were discussed and analyzed as well. A number of performance enhancement techniques were taken into consideration to obtain high and flat back-off efficiency over the amplifier design band of 1.7–2.25 GHz. The designed Doherty amplifier had, at 8.0–9.9 dB output back-off, a minimum efficiency of η = 50% [power-added efficiency of 45%], measured near 40 dBm of output power, and over 28% bandwidth. Using digital predistortion (DPD) linearization, an adjacent-channel leakage ratio (ACLR) of −43 dBc was obtained for a single-carrier W-CDMA signal, at 40.9 dBm and 46% of average output power and drain efficiency, respectively. The designed amplifier represents the first wideband Doherty amplifier reported over extended power back-off range." @default.
- W2022939466 created "2016-06-24" @default.
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- W2022939466 date "2014-04-01" @default.
- W2022939466 modified "2023-10-18" @default.
- W2022939466 title "Design and analysis of 80-W wideband asymmetrical Doherty amplifier" @default.
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- W2022939466 doi "https://doi.org/10.1017/s1759078714000452" @default.
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