DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, J | - |
dc.contributor.author | Kim, D | - |
dc.contributor.author | Cho, Y | - |
dc.contributor.author | Kang, D | - |
dc.contributor.author | Park, B | - |
dc.contributor.author | Kim, B | - |
dc.date.accessioned | 2016-04-01T08:01:25Z | - |
dc.date.available | 2016-04-01T08:01:25Z | - |
dc.date.created | 2015-05-04 | - |
dc.date.issued | 2013-01 | - |
dc.identifier.issn | 0018-9480 | - |
dc.identifier.other | 2013-OAK-0000032589 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/27132 | - |
dc.description.abstract | This paper presents an envelope tracking power amplifier (ET PA) using a dual-mode supply modulator for handset application. The supply modulator has a combined structure with a linear amplifier and a switching amplifier. The dual-mode supply modulator operates in high-power mode and low-power mode by providing the supply voltage of the linear amplifier of 5 and 2.5 V, respectively. For 1.74-GHz long-term evolution signal with 10-MHz bandwidth, 6.44-dB peak-to-average power ratio, and 16-quadrature amplitude modulation, the ET PA delivers a power-added efficiency (PAE) of 39.8%, an evolved universal terrestrial radio access adjacent channel leakage ratio (E-UTRA(ACLR)) of -35.7 dBc, and an error vector magnitude (EVM) of 3.81% at an average output power of 27 dBm. The ET PA also delivers a PAE of 22.6% at an average output power of 18 dBm, which is 6.6% higher than that of the conventional ET PA and 13.1% higher than that of the standalone PA. The supply modulator is connected to a drive stage and a power stage of the PA simultaneously for further enhanced efficiency at a power back-off region. The dual-mode two-stage ET PA delivers a PAE of 38.1%, an E-UTRA(ACLR) of -32.9 dBc, and an EVM of 4.74% at an average output power of 27 dBm. The dual-mode two-stage ET PA also delivers a PAE of 26.3% at an average output power of 18 dBm, which is 7.8% higher than that of the conventional two-stage ET PA and 16.7% higher than that of the standalone PA. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | - |
dc.title | Envelope-Tracking Two-Stage Power Amplifier With Dual-Mode Supply Modulator for LTE Applications | - |
dc.type | Article | - |
dc.contributor.college | 정보전자융합공학부 | - |
dc.identifier.doi | 10.1109/TMTT.2012.2225532 | - |
dc.author.google | Kim, J | - |
dc.author.google | Kim, D | - |
dc.author.google | Cho, Y | - |
dc.author.google | Kang, D | - |
dc.author.google | Park, B | - |
dc.author.google | Kim, B | - |
dc.relation.volume | 61 | - |
dc.relation.issue | 1 | - |
dc.relation.startpage | 543 | - |
dc.relation.lastpage | 552 | - |
dc.contributor.id | 10106173 | - |
dc.relation.journal | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, v.61, no.1, pp.543 - 552 | - |
dc.identifier.wosid | 000313940700022 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 552 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 543 | - |
dc.citation.title | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | - |
dc.citation.volume | 61 | - |
dc.contributor.affiliatedAuthor | Kim, B | - |
dc.identifier.scopusid | 2-s2.0-84872914916 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 37 | - |
dc.description.scptc | 40 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | Dual mode | - |
dc.subject.keywordAuthor | envelope tracking (ET) | - |
dc.subject.keywordAuthor | high-power mode (HPM) | - |
dc.subject.keywordAuthor | linear amplifier | - |
dc.subject.keywordAuthor | long-term evolution (LTE) | - |
dc.subject.keywordAuthor | low-power mode (LPM) | - |
dc.subject.keywordAuthor | power amplifier (PA) | - |
dc.subject.keywordAuthor | switching amplifier | - |
dc.subject.keywordAuthor | two stage | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
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