<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

學術出版;;Publications

Permanent URI for this communityhdl:11536/1

收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

Browse

🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Syu, Jin-SiangSubject: search.filters.subject.Gilbert mixer

Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item type:Item,
    2.4/5.7 GHz dual-band high linearity gilbert upconverter utilizing bias-offset TCA and LC current combiner
    (2007-12-01)
    Syu, Jin-Siang
    ;
    Meng, Chinchun
    ;
    電信工程研究所
    ;
    Institute of Communications Engineering
    A 2.4/5.7 GHz dual-band Gilbert upconversion mixer is demonstrated using 0.35 mu m SiGe BiCMOS technology. A bias-offset cross-coupled transconductance amplifier (TCA) is employed in the intermediate frequency port for the linearity improvement. The dual-band LC current combiner and the output shunt-shunt feedback buffer amplifier are in the radio frequency (RF) port. The mechanisms of the high linearity upconverter and, the design flow of the dual-band LC current combiner are established in this letter. The dual-band upconverter has conversion gain of 1.5/-0.2 dB, OP1dB of -10.5/-9 dBm, and OIP3 of 12/13 dBm for IF=100 MHz, RF= 2.4/5.7 GHz, respectively.
  • Thumbnail Image
    Item type:Item,
    5.7 GHz Gilbert I/Q downconverter integrated with a passive LO quadrature generator and an RF Marchand balun
    (2008-02-01)
    Syu, Jin-Siang
    ;
    Meng, Chinchun
    ;
    Yen, Ying-Chieh
    ;
    電信工程研究所
    ;
    Institute of Communications Engineering
    A 5.7 GHz I/Q downconversion mixer is demonstrated in this letter using 0.35 mu m SiGe BiCMOS technology. A quarter-wavelength coupled line and two center-tapped transformers are utilized to generate differential quadrature LO signals. A miniaturized Marchand balun is placed before the common-base-configured RF input stage of each I/Q Gilbert mixer to generate balanced RF signals. All the reactive passive elements are placed directly on the standard silicon substrate. The 5.7 GHz I/Q downconverter achieves 7 dB conversion gain, -26 dBm IP1dB, and -18 dBm IIP3 at the power consumption of 3.875 mW and 2.5 V supply voltage.
  • Thumbnail Image
    Item type:Item,
    GILBERT UPCONVERSION MIXERS USING SINGLE-BAND/DUAL-BAND LC CURRENT COMBINERS
    (2009-07-01)
    Syu, Jin-Siang
    ;
    Meng, Chinchun
    ;
    Yen, Ying-Chieh
    ;
    Huang, Guo-Wei
    ;
    電信工程研究所
    The 0.35-mu m SiGe BiCMOS high linearity Gilbert upconverters are demonstrate in this article by utilizing NMOS and PMOS transconductance amplifiers (TCAs), respectively. To improve the linearity of a Gilber upconverter, the IF input TCA is rerplaced by a bias-offset differential pair. A reactive LC current combiner is used as the load of the Gilber mixer to double the output current. The upconverter with an NMOS TCA archieves the conversion gain of -4 dB, the OP(ldB) of -11 dBm, and the OIP(3) of 5.5 dBm, whereas the other one with a PMOS TCA has the conversion gain, OP(ldB), and OIP(3) of -6 dB, -11 dBm, and 9.5 dBm, respectively. Furthermore, the LC current combiner can be extended to a dual-band version. The 2.4/5.7 GHz dual-band upconverters is also demonstrated in this work. The conversion gain at 2.4/5.7 GHz is -3/-3.5 dB with the OP(ldB) of -15.5/-15 dBm and the OIP(3) of -2.5/-3 dBm, respectively. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1718-1722, 2009; Published online in Wiley Interscience (www.interscience.wiley.com). DOI 10.1002/mop.24433