DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ko, S | ko |
dc.contributor.author | Kim, JG | ko |
dc.contributor.author | Song, T | ko |
dc.contributor.author | Yoon, E | ko |
dc.contributor.author | Hong, Songcheol | ko |
dc.date.accessioned | 2007-09-27T06:04:48Z | - |
dc.date.available | 2007-09-27T06:04:48Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2005-09 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, v.53, no.9, pp.2789 - 2800 | - |
dc.identifier.issn | 0018-9480 | - |
dc.identifier.uri | http://hdl.handle.net/10203/1561 | - |
dc.description.abstract | Fully integrated 10-, 20-, and 40-GHz frequency sources are presented, which are implemented with a 0.18-mu m CMOS process. A 10-GHz quadrature voltage-controlled oscillator (QVCO) is designed to have output with a low de level, which can be effectively followed by a frequency multiplier. The proposed multipliers generate signals of 20 and 40 GHz using the harmonics of the QVCO. To have more harmonic power, a frequency doubler with pinchoff clipping is used without any buffers or dc-level shifters. The QVCO has a low phase noise of - 118.67 dBc/Hz at a 1-MHz offset frequency with a 1.8-V power supply. The transistor size effect on phase noise is investigated. The frequency doubler has a low phase noise of -111.67 dBc/Hz at a 1-MHz offset frequency is measured, which is 7 dB higher than a phase noise of the QVCO. The doubler can be tuned between 19.8-22 GHz and the output is -6.83 dBm. A fourth-order frequency multiplier, which is used to obtain 40-GHz outputs, shows a phase noise of -102.0 dBc/Hz at 1-MHz offset frequency with the output power of - 18.0 dBm. A large tuning range of 39.3-43.67 GHz (10%) is observed. | - |
dc.description.sponsorship | The authors wish to acknowledge Samsung Electronics Company for providing the opportunity to fabricate the chip. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | NOISE | - |
dc.title | K- and Q-bands CMOS frequency sources with X-band quadrature VCO | - |
dc.type | Article | - |
dc.identifier.wosid | 000231721300019 | - |
dc.identifier.scopusid | 2-s2.0-27744532389 | - |
dc.type.rims | ART | - |
dc.citation.volume | 53 | - |
dc.citation.issue | 9 | - |
dc.citation.beginningpage | 2789 | - |
dc.citation.endingpage | 2800 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Hong, Songcheol | - |
dc.contributor.nonIdAuthor | Ko, S | - |
dc.contributor.nonIdAuthor | Kim, JG | - |
dc.contributor.nonIdAuthor | Song, T | - |
dc.contributor.nonIdAuthor | Yoon, E | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | CMOS | - |
dc.subject.keywordAuthor | fourth multiplier | - |
dc.subject.keywordAuthor | frequency doubler | - |
dc.subject.keywordAuthor | pinchoff clipping | - |
dc.subject.keywordAuthor | quadrature | - |
dc.subject.keywordAuthor | second multiplier | - |
dc.subject.keywordAuthor | transformer | - |
dc.subject.keywordAuthor | voltage-controlled oscillator (VCO) | - |
dc.subject.keywordPlus | NOISE | - |
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