A Transistor-Based Analog Predistorter With Unequal Delays for Memory Compensation
A transistor-based analog predistorter (APD) with memory effect compensation is represented. The nonlinearity of a gain amplifier generated by a low supply voltage is used as an error generator. The predistorted signal by the unequal-delayed nonlinear paths improves the linearity by compensating for...
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| Veröffentlicht in: | IEEE microwave and wireless components letters 2009-11, Vol.19 (11), p.743-745 |
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| container_issue | 11 |
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| container_title | IEEE microwave and wireless components letters |
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| creator | LEE, Yong-Sub LEE, Mun-Woo KAM, Sang-Ho JEONG, Yoon-Ha |
| description | A transistor-based analog predistorter (APD) with memory effect compensation is represented. The nonlinearity of a gain amplifier generated by a low supply voltage is used as an error generator. The predistorted signal by the unequal-delayed nonlinear paths improves the linearity by compensating for memory effects of the power amplifier (PA). For verification, the proposed APD with three-branch nonlinear paths is implemented with a 30-W class-AB PA and tested using two-tone and various wideband code division multiple access (WCDMA) signals at 2.14 GHz. From the measured results, the proposed APD significantly improves the linearity of the PA with memory effects. |
| doi_str_mv | 10.1109/LMWC.2009.2032024 |
| format | Article |
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The nonlinearity of a gain amplifier generated by a low supply voltage is used as an error generator. The predistorted signal by the unequal-delayed nonlinear paths improves the linearity by compensating for memory effects of the power amplifier (PA). For verification, the proposed APD with three-branch nonlinear paths is implemented with a 30-W class-AB PA and tested using two-tone and various wideband code division multiple access (WCDMA) signals at 2.14 GHz. From the measured results, the proposed APD significantly improves the linearity of the PA with memory effects.</description><identifier>ISSN: 1531-1309</identifier><identifier>ISSN: 2771-957X</identifier><identifier>EISSN: 1558-1764</identifier><identifier>EISSN: 2771-9588</identifier><identifier>DOI: 10.1109/LMWC.2009.2032024</identifier><identifier>CODEN: IMWCBJ</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Amplifiers ; Analog predistorter (APD) ; Applied sciences ; Broadband amplifiers ; Circuit properties ; Compensation ; Delay ; Delay effects ; Delay lines ; Electric, optical and optoelectronic circuits ; Electronic circuits ; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics ; Electronics ; Exact sciences and technology ; Gain ; Linearity ; memory effects ; Microwaves ; Multiaccess communication ; Nonlinearity ; power amplifier (PA) ; Power amplifiers ; Signal generators ; Signal processing ; Testing ; Voltage ; Wideband</subject><ispartof>IEEE microwave and wireless components letters, 2009-11, Vol.19 (11), p.743-745</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-ba064cbcd0c5606433dbf754eb921fb3893a5b4aaa0f44fbbfe0df1dd8d079503</citedby><cites>FETCH-LOGICAL-c385t-ba064cbcd0c5606433dbf754eb921fb3893a5b4aaa0f44fbbfe0df1dd8d079503</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5290000$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5290000$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22282744$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>LEE, Yong-Sub</creatorcontrib><creatorcontrib>LEE, Mun-Woo</creatorcontrib><creatorcontrib>KAM, Sang-Ho</creatorcontrib><creatorcontrib>JEONG, Yoon-Ha</creatorcontrib><title>A Transistor-Based Analog Predistorter With Unequal Delays for Memory Compensation</title><title>IEEE microwave and wireless components letters</title><addtitle>LMWC</addtitle><description>A transistor-based analog predistorter (APD) with memory effect compensation is represented. The nonlinearity of a gain amplifier generated by a low supply voltage is used as an error generator. The predistorted signal by the unequal-delayed nonlinear paths improves the linearity by compensating for memory effects of the power amplifier (PA). For verification, the proposed APD with three-branch nonlinear paths is implemented with a 30-W class-AB PA and tested using two-tone and various wideband code division multiple access (WCDMA) signals at 2.14 GHz. From the measured results, the proposed APD significantly improves the linearity of the PA with memory effects.</description><subject>Amplifiers</subject><subject>Analog predistorter (APD)</subject><subject>Applied sciences</subject><subject>Broadband amplifiers</subject><subject>Circuit properties</subject><subject>Compensation</subject><subject>Delay</subject><subject>Delay effects</subject><subject>Delay lines</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronic circuits</subject><subject>Electronic equipment and fabrication. Passive components, printed wiring boards, connectics</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Gain</subject><subject>Linearity</subject><subject>memory effects</subject><subject>Microwaves</subject><subject>Multiaccess communication</subject><subject>Nonlinearity</subject><subject>power amplifier (PA)</subject><subject>Power amplifiers</subject><subject>Signal generators</subject><subject>Signal processing</subject><subject>Testing</subject><subject>Voltage</subject><subject>Wideband</subject><issn>1531-1309</issn><issn>2771-957X</issn><issn>1558-1764</issn><issn>2771-9588</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kT1PwzAQhiMEEqXwAxCLhQRMKf6Mk7GET6kVCLXqGDnJGVKlcWsnQ_89Dq06MODhfLp77h3eNwguCR4RgpP7yXSRjijGiS-MYsqPggERIg6JjPhx3zMSEoaT0-DMuSXGhMecDILPMZpZ1bjKtcaGD8pBicaNqs0X-rBQ_o5bsGhRtd9o3sCmUzV6hFptHdLGoimsjN2i1KzW0DjVVqY5D060qh1c7P9hMH9-mqWv4eT95S0dT8KCxaINc4UjXuRFiQsR-ZaxMtdScMgTSnTO4oQpkXOlFNac6zzXgEtNyjIusUwEZsPgbqe7tmbTgWuzVeUKqGvVgOlcFksPSSmkJ2__JVnERMRI7MHrP-DSdNbb4dUib7OUSQ-RHVRY45wFna1ttVJ2mxGc9WFkfRhZH0a2D8Pf3OyFlStUrb3lReUOh5TSmErec1c7rgKAw1rQBPvHfgA83JJs</recordid><startdate>20091101</startdate><enddate>20091101</enddate><creator>LEE, Yong-Sub</creator><creator>LEE, Mun-Woo</creator><creator>KAM, Sang-Ho</creator><creator>JEONG, Yoon-Ha</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20091101</creationdate><title>A Transistor-Based Analog Predistorter With Unequal Delays for Memory Compensation</title><author>LEE, Yong-Sub ; LEE, Mun-Woo ; KAM, Sang-Ho ; JEONG, Yoon-Ha</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-ba064cbcd0c5606433dbf754eb921fb3893a5b4aaa0f44fbbfe0df1dd8d079503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Amplifiers</topic><topic>Analog predistorter (APD)</topic><topic>Applied sciences</topic><topic>Broadband amplifiers</topic><topic>Circuit properties</topic><topic>Compensation</topic><topic>Delay</topic><topic>Delay effects</topic><topic>Delay lines</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronic circuits</topic><topic>Electronic equipment and fabrication. Passive components, printed wiring boards, connectics</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Gain</topic><topic>Linearity</topic><topic>memory effects</topic><topic>Microwaves</topic><topic>Multiaccess communication</topic><topic>Nonlinearity</topic><topic>power amplifier (PA)</topic><topic>Power amplifiers</topic><topic>Signal generators</topic><topic>Signal processing</topic><topic>Testing</topic><topic>Voltage</topic><topic>Wideband</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LEE, Yong-Sub</creatorcontrib><creatorcontrib>LEE, Mun-Woo</creatorcontrib><creatorcontrib>KAM, Sang-Ho</creatorcontrib><creatorcontrib>JEONG, Yoon-Ha</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library Online</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE microwave and wireless components letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LEE, Yong-Sub</au><au>LEE, Mun-Woo</au><au>KAM, Sang-Ho</au><au>JEONG, Yoon-Ha</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Transistor-Based Analog Predistorter With Unequal Delays for Memory Compensation</atitle><jtitle>IEEE microwave and wireless components letters</jtitle><stitle>LMWC</stitle><date>2009-11-01</date><risdate>2009</risdate><volume>19</volume><issue>11</issue><spage>743</spage><epage>745</epage><pages>743-745</pages><issn>1531-1309</issn><issn>2771-957X</issn><eissn>1558-1764</eissn><eissn>2771-9588</eissn><coden>IMWCBJ</coden><abstract>A transistor-based analog predistorter (APD) with memory effect compensation is represented. The nonlinearity of a gain amplifier generated by a low supply voltage is used as an error generator. The predistorted signal by the unequal-delayed nonlinear paths improves the linearity by compensating for memory effects of the power amplifier (PA). For verification, the proposed APD with three-branch nonlinear paths is implemented with a 30-W class-AB PA and tested using two-tone and various wideband code division multiple access (WCDMA) signals at 2.14 GHz. From the measured results, the proposed APD significantly improves the linearity of the PA with memory effects.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/LMWC.2009.2032024</doi><tpages>3</tpages></addata></record> |
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| source | IEEE Electronic Library Online |
| subjects | Amplifiers Analog predistorter (APD) Applied sciences Broadband amplifiers Circuit properties Compensation Delay Delay effects Delay lines Electric, optical and optoelectronic circuits Electronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology Gain Linearity memory effects Microwaves Multiaccess communication Nonlinearity power amplifier (PA) Power amplifiers Signal generators Signal processing Testing Voltage Wideband |
| title | A Transistor-Based Analog Predistorter With Unequal Delays for Memory Compensation |
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