DC Field | Value | Language |
---|---|---|
dc.contributor.author | Diao, Shengxi | ko |
dc.contributor.author | Zheng, Yuanjin | ko |
dc.contributor.author | Gao, Yuan | ko |
dc.contributor.author | Cheng, San-Jeow | ko |
dc.contributor.author | Yuan, Xiaojun | ko |
dc.contributor.author | Je, Minkyu | ko |
dc.contributor.author | Heng, Chun-Huat | ko |
dc.date.accessioned | 2021-01-06T02:50:05Z | - |
dc.date.available | 2021-01-06T02:50:05Z | - |
dc.date.created | 2020-04-09 | - |
dc.date.created | 2020-04-09 | - |
dc.date.issued | 2012-01 | - |
dc.identifier.citation | IEEE Transactions on Microwave Theory and Techniques, v.60, no.1, pp.120 - 130 | - |
dc.identifier.issn | 0018-9480 | - |
dc.identifier.uri | http://hdl.handle.net/10203/279612 | - |
dc.description.abstract | A 50-Mb/s quadrature phase-shift keying (QPSK)/offset quadrature phase-shift keying (O-QPSK) transmitter suitable for biomedical high-quality imaging application is presented. Centered at 915 MHz, the phase modulation is achieved by directly modifying the self-resonant frequency of an LC voltage-controlled oscillator through capacitor bank switching. By eliminating many unnecessary building blocks in the conventional QPSK/O-QPSK transmitter, significant power and area savings are achieved. Implemented in 0.18-mu m CMOS technology, it occupies an active core area of 0.28 mm(2). With 305-MHz injection frequency and consuming 5.6 mW under 1.4-V supply, the transmitter achieves error vector magnitude (EVM) of 11.4%/5.97% for O-QPSK/QPSK modulation while delivering output power of -3 dBm at 50 Mb/s. By lowering the injection frequency to 101.67 MHz, it consumes 5.88 mW under the same supply voltages while delivering an output power of -3.3 dBm. The transmitter achieves measured EVM of 6.4% at 50 Mb/s under QPSK modulation. | - |
dc.language | English | - |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | - |
dc.title | A 50-Mb/s CMOS QPSK/O-QPSK Transmitter Employing Injection Locking for Direct Modulation | - |
dc.type | Article | - |
dc.identifier.wosid | 000298755000013 | - |
dc.identifier.scopusid | 2-s2.0-84855417994 | - |
dc.type.rims | ART | - |
dc.citation.volume | 60 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 120 | - |
dc.citation.endingpage | 130 | - |
dc.citation.publicationname | IEEE Transactions on Microwave Theory and Techniques | - |
dc.identifier.doi | 10.1109/tmtt.2011.2174377 | - |
dc.contributor.localauthor | Je, Minkyu | - |
dc.contributor.nonIdAuthor | Diao, Shengxi | - |
dc.contributor.nonIdAuthor | Zheng, Yuanjin | - |
dc.contributor.nonIdAuthor | Gao, Yuan | - |
dc.contributor.nonIdAuthor | Cheng, San-Jeow | - |
dc.contributor.nonIdAuthor | Yuan, Xiaojun | - |
dc.contributor.nonIdAuthor | Heng, Chun-Huat | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | CMOS | - |
dc.subject.keywordAuthor | endoscopy | - |
dc.subject.keywordAuthor | injection locking (IL) | - |
dc.subject.keywordAuthor | low power | - |
dc.subject.keywordAuthor | offset quadrature phase-shift keying (O-QPSK) | - |
dc.subject.keywordAuthor | pill camera | - |
dc.subject.keywordAuthor | quadrature phase-shift keying (QPSK) | - |
dc.subject.keywordAuthor | transmitter | - |
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