High-efficiency linear power amplifier
作者： Yasunori Suzuki , Shinji Mizuta , Tetsuo Hirota , Yasushi Yamao
DOI:
关键词: Electronic engineering 、 Pilot signal 、 Analog transmission 、 Signal 、 SINADR 、 Digital down converter 、 Engineering 、 Analog signal 、 Digital signal 、 Baseband
摘要: A transmission signal and a pilot are predistorted by digital predistorter 13 use of power-series model, the output is converted digital-analog converter 14 to an analog signal. The up frequency 15 RF-band signal, which transmitted after being power-amplified Doherty amplifier 16. extracted extractor 17 from amplifier, down 18 baseband analog-digital 19 control part 21 detects odd-order distortion component based on detected result, controls parameters predistorter.
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