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dc.contributor.authorHsiao, Yu-Chihen_US
dc.contributor.authorMeng, Chinchunen_US
dc.contributor.authorChien, Hsieh-Hsiu Changen_US
dc.contributor.authorHuang, Guo-Weien_US
dc.date.accessioned2019-04-02T06:04:23Z-
dc.date.available2019-04-02T06:04:23Z-
dc.date.issued2018-01-01en_US
dc.identifier.issn0149-645Xen_US
dc.identifier.urihttp://hdl.handle.net/11536/150853-
dc.description.abstractThis paper demonstrates a small-size 2.4-GHz CMOS active bandpass filter with two transmission zeros using a lumped stepped-impedance ring resonator. To obtain low insertion loss and small size, four high-Q active inductors using 0.18 gm CMOS transistors only are employed in the design. The measured insertion loss is 2.9-dB at 2.4 GHz center frequency with two transmission zeros located at 2.1 GHz and 3.1 GHz, respectively. By tuning the bias currents of active inductors, the center frequency has 1.4 GHz tuning range and the 1-dB bandwidth can be adjusted in the range of 190 MHz to 260 MHz. The demonstrated active filter occupies a small chip area of 0.47 mm x 0.33 mm excluding I/O pads and has 24 dB noise figure. Thus, an active filter with a preceding two-stage common-source LNA for suppression of noise of the active filter is also demonstrated and the resulting LNA + active filter has 6 dB noise figure. The power consumption of the active filter core and the LNA core is 9 mW and 7.2 mW, respectively.en_US
dc.language.isoen_USen_US
dc.subjectActive bandpass filteren_US
dc.subjectactive inductoren_US
dc.subjectring resonatoren_US
dc.subjecttransmission zeroen_US
dc.subjectCMOSen_US
dc.title2.4-GHz Tunable Miniature CMOS Active Bandpass Filter With Two Transmission Zeros Using Lumped Stepped-Impedance Ring Resonatoren_US
dc.typeProceedings Paperen_US
dc.identifier.journal2018 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM - IMSen_US
dc.citation.spage405en_US
dc.citation.epage408en_US
dc.contributor.department電機工程學系zh_TW
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US
dc.identifier.wosnumberWOS:000451173600107en_US
dc.citation.woscount0en_US
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