DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Dong Ho | ko |
dc.contributor.author | Park, Changkun | ko |
dc.contributor.author | Han, Jeonghu | ko |
dc.contributor.author | Kim, Younsuk | ko |
dc.contributor.author | Hong, Songcheol | ko |
dc.contributor.author | Lee, Chang-Ho | ko |
dc.contributor.author | Laskar, Joy | ko |
dc.date.accessioned | 2013-03-08T07:17:27Z | - |
dc.date.available | 2013-03-08T07:17:27Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2008-07 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, v.56, no.7, pp.1565 - 1574 | - |
dc.identifier.issn | 0018-9480 | - |
dc.identifier.uri | http://hdl.handle.net/10203/92448 | - |
dc.description.abstract | A load-shared CMOS power amplifier (PA) for 1.8-GHz polar transmitter applications has been implemented in standard 0.18-mu m CMOS technology and fully characterized to demonstrate its efficiency boosting technique in low power mode. With the aid of cascode amplifiers, the load-shared configuration achieves efficiency improvement at low supply voltage in a polar transmitter. A differential class-E amplifier with a parallel resonant circuit is analyzed and incorporated in the load-shared PA. The load-shared configuration is composed of driver amplifiers (DAs) and PAs whose output loads are shared. The DA has a constant gate voltage biasing of a cascode amplifier for efficiency boosting, whereas the PA has a self-biased cascode configuration to be turned on and off by a supply voltage. The measurement results of the load-shared configuration show a drain efficiency increase from 6 % to 30 % at 16-dBm output power compared with a conventional self-biased cascode amplifier. The load-shared PA is reported with 35.6% of power-added efficiency and 32.2 dBm of output power at 1.88 GHz. | - |
dc.language | English | - |
dc.publisher | IEEE-Inst Electrical Electronics Engineers Inc | - |
dc.subject | DISTRIBUTED ACTIVE-TRANSFORMER | - |
dc.subject | CDMA APPLICATIONS | - |
dc.subject | 1.9-GHZ | - |
dc.subject | VOLTAGE | - |
dc.subject | DESIGN | - |
dc.subject | PAE | - |
dc.title | A load-shared CMOS power amplifier with efficiency boosting at low power mode for polar transmitters | - |
dc.type | Article | - |
dc.identifier.wosid | 000257671600008 | - |
dc.identifier.scopusid | 2-s2.0-47649120495 | - |
dc.type.rims | ART | - |
dc.citation.volume | 56 | - |
dc.citation.issue | 7 | - |
dc.citation.beginningpage | 1565 | - |
dc.citation.endingpage | 1574 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | - |
dc.identifier.doi | 10.1109/TMTT.2008.925220 | - |
dc.contributor.localauthor | Hong, Songcheol | - |
dc.contributor.nonIdAuthor | Lee, Dong Ho | - |
dc.contributor.nonIdAuthor | Park, Changkun | - |
dc.contributor.nonIdAuthor | Han, Jeonghu | - |
dc.contributor.nonIdAuthor | Kim, Younsuk | - |
dc.contributor.nonIdAuthor | Lee, Chang-Ho | - |
dc.contributor.nonIdAuthor | Laskar, Joy | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | cascode amplifiers | - |
dc.subject.keywordAuthor | CMOSFET power amplifiers (PAs) | - |
dc.subject.keywordAuthor | mode locking | - |
dc.subject.keywordAuthor | monolithic microwave integrated circuit (MMIC) PAs | - |
dc.subject.keywordAuthor | polar transmitters | - |
dc.subject.keywordPlus | DISTRIBUTED ACTIVE-TRANSFORMER | - |
dc.subject.keywordPlus | CDMA APPLICATIONS | - |
dc.subject.keywordPlus | 1.9-GHZ | - |
dc.subject.keywordPlus | VOLTAGE | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | PAE | - |
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