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dc.contributor.authorWei, Hung-Juen_US
dc.contributor.authorMeng, Chinchunen_US
dc.contributor.authorYu, Sheng-Wenen_US
dc.contributor.authorChang, Chia-Hungen_US
dc.date.accessioned2017-04-21T06:55:30Z-
dc.date.available2017-04-21T06:55:30Z-
dc.date.issued2011-04en_US
dc.identifier.issn0018-9480en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TMTT.2011.2108312en_US
dc.identifier.urihttp://hdl.handle.net/11536/133366-
dc.description.abstractThis paper focuses on the analysis and the design methodology of the step-impedance phase-inverter rat-race coupler on a silicon-based process. The issues of impedance limitation and bandwidth are discussed in detail. Our proposed concept utilizes a high silicon dielectric constant, phase-inverter structure, step-impedance technique, and Chebyshev response to make the rat-race coupler more compact (similar to 64 reduction) and highly balanced over a wide operating bandwidth. Moreover, the inter-digital coplanar stripline used in the step-impedance section effectively reduces the characteristic impedance of the transmission line for large size shrinkage and insertion-loss reduction. The demonstrated step-impedance rat-race coupler directly on silicon substrate has 6- similar to 7-dB insertion loss from 5 to 15 GHz and small variations in amplitude/phase balance. Compared with our previous work, the proposed rat-race coupler achieves a 3-dB improvement in the insertion loss. Thus, a 0.13-mu m CMOS Gilbert down-converter with a miniature phase-inverter rat-race coupler at the RF path for wideband single-to-differential signal conversion achieves a noise figure of 16 dB.en_US
dc.language.isoen_USen_US
dc.subjectBroadbanden_US
dc.subjectChebyshev responseen_US
dc.subjectCMOSen_US
dc.subjectcoplanar stripline (CPS)en_US
dc.subjectdistortionlessen_US
dc.subjectdown-converteren_US
dc.subjectphase inverteren_US
dc.subjectrat-race coupleren_US
dc.subjectstep impedanceen_US
dc.titleA Chebyshev-Response Step-Impedance Phase-Inverter Rat-Race Coupler Directly on Lossy Silicon Substrate and Its Gilbert Mixer Applicationen_US
dc.identifier.doi10.1109/TMTT.2011.2108312en_US
dc.identifier.journalIEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUESen_US
dc.citation.volume59en_US
dc.citation.issue4en_US
dc.citation.spage882en_US
dc.citation.epage893en_US
dc.contributor.department電機工程學系zh_TW
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US
dc.identifier.wosnumberWOS:000209920600010en_US
Appears in Collections:Articles