DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Choul-Young | ko |
dc.contributor.author | Kim, Jeong-Geun | ko |
dc.contributor.author | Hong, Songcheol | ko |
dc.date.accessioned | 2013-03-08T07:25:01Z | - |
dc.date.available | 2013-03-08T07:25:01Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-07 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, v.55, no.7, pp.1438 - 1444 | - |
dc.identifier.issn | 0018-9480 | - |
dc.identifier.uri | http://hdl.handle.net/10203/92464 | - |
dc.description.abstract | A quadrature radar topology with a Tx leakage canceller is presented. The canceller is composed of four branch-line hybrid couplers, a 90 degrees delay line, and a Wilkinson combiner. It has high Tx-to-Rx isolation and wide bandwidth characteristics. The isolation is 35.27 dB at 24 GHz and does not drop below 30 dB over a 2-GHz bandwidth. Given that the isolation of the branch-line hybrid coupler is 21.5 dB, the enhancement of the isolation is expected to be 13.77 dB. A quadrature Doppler radar front-end with the canceller was implemented. The noise level in the mixer output is lower by 9 dB compared with that of a conventional quadrature radar. This radar can measure speed as low as 0.76 mm/s, which correspond to a 0.12-Hz Doppler shift. It is also able to detect signs of the Doppler shift from a moving target due to its quadrature topology. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | A quadrature radar topology with Tx leakage canceller for 24-GHz radar applications | - |
dc.type | Article | - |
dc.identifier.wosid | 000248063100004 | - |
dc.identifier.scopusid | 2-s2.0-34547240227 | - |
dc.type.rims | ART | - |
dc.citation.volume | 55 | - |
dc.citation.issue | 7 | - |
dc.citation.beginningpage | 1438 | - |
dc.citation.endingpage | 1444 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | - |
dc.identifier.doi | 10.1109/TMTT.2007.900316 | - |
dc.contributor.localauthor | Hong, Songcheol | - |
dc.contributor.nonIdAuthor | Kim, Choul-Young | - |
dc.contributor.nonIdAuthor | Kim, Jeong-Geun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | quadrature radar | - |
dc.subject.keywordAuthor | radar sensor | - |
dc.subject.keywordAuthor | velocity measurement | - |
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