20-GHz quadrature injection-locked LC dividers with enhanced locking range

Takayuki Shibasaki, Hirotaka Tamura, Kouichi Kanda, Hisakatsu Yamaguchi, Junji Ogawa, Tadahiro Kuroda

    研究成果: Article査読

    25 被引用数 (Scopus)

    抄録

    Quadrature injection-locked LC dividers with either a Miller topology or an injection-locked LC VCO topology are coupled with transconductors to enhance their locking range. The effect of the transconductance coupling is analyzed theoretically and through circuit simulation. Both topologies were fabricated by 90-nm CMOS technology with a target input center frequency of 20 GHz and output frequency of 10 GHz. The measured locking range for the Miller topology with transconductance coupling is 25.3%, compared to 20.9% without coupling. The measured locking range for the injection-locked LC VCO topology with transconductance coupling is 18.1%, compared to 12.9% without coupling. Moreover, power consumption for both dividers is 6.4 mW with a 1.2-V supply.

    本文言語English
    論文番号4456788
    ページ(範囲)610-618
    ページ数9
    ジャーナルIEEE Journal of Solid-State Circuits
    43
    3
    DOI
    出版ステータスPublished - 2008 3 1

    ASJC Scopus subject areas

    • 電子工学および電気工学

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