A Modified Band-Limited Digital Predistortion Technique for Broadband Power Amplifiers
In this letter, a modified band-limited digital predistortion (DPD) technique is proposed to improve the performance of the conventional band-limited DPD method in wideband systems. The power amplifier's (PA's) spectral regrowth outside the passband of bandpass filter is unable to be compe...
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| Veröffentlicht in: | IEEE communications letters 2016-09, Vol.20 (9), p.1800-1803 |
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| container_issue | 9 |
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| creator | Zhao, Jingmei Liu, Yuan'an Yu, Cuiping Yu, Jianguo Li, Shulan |
| description | In this letter, a modified band-limited digital predistortion (DPD) technique is proposed to improve the performance of the conventional band-limited DPD method in wideband systems. The power amplifier's (PA's) spectral regrowth outside the passband of bandpass filter is unable to be compensated using the traditional band-limited DPD. To increase the overall linearized bandwidth and reduce the requirement for feedback signal path, this new technique introduced two modules of full-band model extraction and coefficient iteration based on the conventional structures of band-limited DPD. It provides higher linearization performance and also reduces the sampling rate of analog-to-digital converter. The experimental results for 30-W Class F PA and 40-W GaN Doherty PA with 40-MHz orthogonal frequency division multiplexing signal and 60-MHz long-term evolution signal, respectively, have shown the superiority of the modified band-limited DPD. |
| doi_str_mv | 10.1109/LCOMM.2016.2585652 |
| format | Article |
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The power amplifier's (PA's) spectral regrowth outside the passband of bandpass filter is unable to be compensated using the traditional band-limited DPD. To increase the overall linearized bandwidth and reduce the requirement for feedback signal path, this new technique introduced two modules of full-band model extraction and coefficient iteration based on the conventional structures of band-limited DPD. It provides higher linearization performance and also reduces the sampling rate of analog-to-digital converter. The experimental results for 30-W Class F PA and 40-W GaN Doherty PA with 40-MHz orthogonal frequency division multiplexing signal and 60-MHz long-term evolution signal, respectively, have shown the superiority of the modified band-limited DPD.</description><identifier>ISSN: 1089-7798</identifier><identifier>EISSN: 1558-2558</identifier><identifier>DOI: 10.1109/LCOMM.2016.2585652</identifier><identifier>CODEN: ICLEF6</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>band-limited ; Band-pass filters ; Bandwidths ; coefficient iteration ; digital predistortion ; Distortion ; Mathematical model ; Matrix decomposition ; OFDM ; Power amplifiers ; Wideband</subject><ispartof>IEEE communications letters, 2016-09, Vol.20 (9), p.1800-1803</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c295t-63c24ba44903e7cf81603de531f3b46ad835f99ad0bc22d1e220f8a590fcde833</citedby><cites>FETCH-LOGICAL-c295t-63c24ba44903e7cf81603de531f3b46ad835f99ad0bc22d1e220f8a590fcde833</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7501821$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7501821$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Zhao, Jingmei</creatorcontrib><creatorcontrib>Liu, Yuan'an</creatorcontrib><creatorcontrib>Yu, Cuiping</creatorcontrib><creatorcontrib>Yu, Jianguo</creatorcontrib><creatorcontrib>Li, Shulan</creatorcontrib><title>A Modified Band-Limited Digital Predistortion Technique for Broadband Power Amplifiers</title><title>IEEE communications letters</title><addtitle>COML</addtitle><description>In this letter, a modified band-limited digital predistortion (DPD) technique is proposed to improve the performance of the conventional band-limited DPD method in wideband systems. 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The experimental results for 30-W Class F PA and 40-W GaN Doherty PA with 40-MHz orthogonal frequency division multiplexing signal and 60-MHz long-term evolution signal, respectively, have shown the superiority of the modified band-limited DPD.</description><subject>band-limited</subject><subject>Band-pass filters</subject><subject>Bandwidths</subject><subject>coefficient iteration</subject><subject>digital predistortion</subject><subject>Distortion</subject><subject>Mathematical model</subject><subject>Matrix decomposition</subject><subject>OFDM</subject><subject>Power amplifiers</subject><subject>Wideband</subject><issn>1089-7798</issn><issn>1558-2558</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEtPAyEUhYnRxPr4A7ohcT31AsMMLNv6TKZpF9UtoQMoTTtUmMb476W2cXMfyTnn3nwI3RAYEgLyvpnMptMhBVINKRe84vQEDQjnoqC5nOYZhCzqWopzdJHSCgAE5WSA3kd4Gox33ho81p0pGr_xfV4e_Ifv9RrPozU-9SH2PnR4YdvPzn_tLHYh4nEM2iyzC8_Dt414tNmu91ExXaEzp9fJXh_7JXp7elxMXopm9vw6GTVFSyXvi4q1tFzqspTAbN06QSpgxnJGHFuWlTaCcSelNrBsKTXEUgpOaC7BtcYKxi7R3SF3G0P-KvVqFXaxyycVEQxkKaWos4oeVG0MKUXr1Db6jY4_ioDa81N__NSenzryy6bbg8lba_8NNQciKGG_lLpsFg</recordid><startdate>201609</startdate><enddate>201609</enddate><creator>Zhao, Jingmei</creator><creator>Liu, Yuan'an</creator><creator>Yu, Cuiping</creator><creator>Yu, Jianguo</creator><creator>Li, Shulan</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The power amplifier's (PA's) spectral regrowth outside the passband of bandpass filter is unable to be compensated using the traditional band-limited DPD. To increase the overall linearized bandwidth and reduce the requirement for feedback signal path, this new technique introduced two modules of full-band model extraction and coefficient iteration based on the conventional structures of band-limited DPD. It provides higher linearization performance and also reduces the sampling rate of analog-to-digital converter. The experimental results for 30-W Class F PA and 40-W GaN Doherty PA with 40-MHz orthogonal frequency division multiplexing signal and 60-MHz long-term evolution signal, respectively, have shown the superiority of the modified band-limited DPD.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/LCOMM.2016.2585652</doi><tpages>4</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | band-limited Band-pass filters Bandwidths coefficient iteration digital predistortion Distortion Mathematical model Matrix decomposition OFDM Power amplifiers Wideband |
| title | A Modified Band-Limited Digital Predistortion Technique for Broadband Power Amplifiers |
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