Envelope tracking power amplifying apparatus and method

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United States of America Patent

PATENT NO 9876472
SERIAL NO

15270375

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Abstract

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An apparatus includes a first predistorter configured to calculate a first predistortion parameter and configured to distort an input signal using the first predistortion parameter to output a first distortion signal, a second predistorter configured to calculate a second predistortion parameter and configured to distort the first distortion signal using the second predistortion parameter to output a second distortion signal, a power supply configured to receive the first distortion signal to generate a first envelope signal, and configured to limit a bandwidth of the first envelope signal to obtain a second envelope signal to supply a source voltage, and a power amplifier configured to receive the source voltage and to output an output signal obtained by amplifying the second distortion signal.

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Patent Owner(s)

Patent OwnerAddress
SAMSUNG ELECTRO-MECHANICS CO LTDGYEONGGI DO KOREA SUWON
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYDAEJEON KOREA DAEJEON

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ha, Jong Ok Suwon-si, KR 21 78
Hong, Soon Il Daejeon, KR 8 59
Jeong, Eui Rim Daejeon, KR 8 52
Lee, Kwang Pyo Daejeon, KR 7 5
Lee, Sang Il Daejeon, KR 67 664
Lee, Yong Hoon Daejeon, KR 92 750
Park, Soon Chan Daejeon, KR 9 32

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