ICFICE 2016
Current Result Document :
| 한글제목(Korean Title) |
Power Amp Linearization Using Digital Pre-distortion in Analog Beam forming Systems |
| 영문제목(English Title) |
Power Amp Linearization Using Digital Pre-distortion in Analog Beam forming Systems |
| 저자(Author) |
Haeng-Bok Kil
Kwang-Pyo Lee
Sung-Mi Jo
Eui-Rim Jeong
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| 원문수록처(Citation) |
VOL 08 NO. 01 PP. 0216 ~ 0220 (2016. 06) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
This paper deals with digital pre-distortion(DPD) problem for compensating non-linearity of power amplifier(PA) in analog beam forming(BF) systems. The beam forming system in this work has one digital chain and multiple PAs. As a consequence, the single DPD has to linearize the multiple PAs simultaneously. To design such DPD, this paper proposes a cost function which is the sum of the square errors for all the PAs. The proposed DPD technique combines all the feedback samples from multiple PAs after phase de-rotation, and then the conventional adaptive algorithm finds the DPD parameters. The experiment results show that the proposed DPD can linearize multiple PAs simultaneously in the analog BF systems.
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| 키워드(Keyword) |
Digital Pre-Distortion(DPD)
Analog beamforming
adaptive algorithm
Power amplifier
Polynomial
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| 파일첨부 |
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