Residential College | false |
Status | 已發表Published |
A novel digital predistortion technique for class-E PA with delay mismatch estimation | |
U-Wai Lok2; Pui-In Mak2; Wei-Han Yu2; R. P. Martins1,2 | |
2011-11 | |
Conference Name | 2011 Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics |
Source Publication | Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics |
Pages | 119-122 |
Conference Date | 6-7 Oct. 2011 |
Conference Place | Macau, China |
Abstract | This paper proposes a polynomial-based adaptive digital predistortion (DPD) method with delay mismatch estimation for the class-E power amplifier (PA), which can compensate the AM-AM and the strong AM-PM distortion produced by the switching operation of class-E PA. On the other hand, due to the strict requirement of timing alignment in polar transmission, a low-complexity correlation-based scheme for delay mismatch estimation and compensation filter is developed. Simulation results confirmed that the proposed DPD can improve the EVM performance from 5.67% to 0.72%, leading also to 18 dB rejection of spectrum re-growth under the condition of perfect timing alignment. The results also reveal that our proposed method of digital predistortion with delay mismatch estimation, as well as delay mismatch compensation has 1% EVM improvement as compared with applying DPD method directly without timing alignment. |
DOI | 10.1109/PrimeAsia.2011.6075085 |
URL | View the original |
Language | 英語English |
Scopus ID | 2-s2.0-82455175764 |
Fulltext Access | |
Citation statistics | |
Document Type | Conference paper |
Collection | THE STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI (UNIVERSITY OF MACAU) Faculty of Science and Technology INSTITUTE OF MICROELECTRONICS DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING |
Affiliation | 1.Instituto Superior Técnico 2.Universidade de Macau |
First Author Affilication | University of Macau |
Recommended Citation GB/T 7714 | U-Wai Lok,Pui-In Mak,Wei-Han Yu,et al. A novel digital predistortion technique for class-E PA with delay mismatch estimation[C], 2011, 119-122. |
APA | U-Wai Lok., Pui-In Mak., Wei-Han Yu., & R. P. Martins (2011). A novel digital predistortion technique for class-E PA with delay mismatch estimation. Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, 119-122. |
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