| Design of RF Pre-Distortion Linearizer for Various Transfer Characteristics of Power Amplifiers |
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Dong-Hee Jang1, Kyoung-Joon Cho1, Sang-Hee Kim1, Jong-Heon Kim1, P. Stapleton Shawn2 |
1Department of Radio Science and Engineering, Kwangwoon University
2School of Engineering Science, Simon Fraser University |
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| Abstract |
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We propose a diode-based RF pre-distorter with various gain and phase characteristics, for non-linearity compensation of RF power amplifiers. This pre-distorter results in the removal of the diode- and configuration-dependent characteristics in the conventional diode-based RF pre-distorters. We have analyzed the operation principle of the proposed pre-distorter. The results show that gain and phase characteristics of the pre-distorter in all four quadrants are achieved. Several power amplifiers and test signals are used for verifying the performance of the proposed diode-based RF pre-distorter. |
| Key words:
Gain Characteristic, Phase Characteristic, Signal Phase Shift, Pre-Distorter, ACPR |
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