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A 60-GHz Injection-Locked Frequency Divider Using Multi-Order LC Oscillator Topology for Wide Locking Range

Keita TAKATSU, Hirotaka TAMURA, Takuji YAMAMOTO, Yoshiyasu DOI, Koichi KANDA, Takayuki SHIBASAKI, Tadahiro KURODA

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Summary :

A 60-GHz injection-locked frequency divider (ILFD) is presented. A multi-order LC oscillator topology is proposed to enhance the locking range of the divider. A design guideline is described based on a theoretical analysis of the locking range enhancement. A test chip is fabricated in 65 nm CMOS. Measured locking range with 0 dBm input power is 48.5–62.9 GHz (25.9%), which is 63.6% wider compared to the previously reported ILFD. Power consumption excluding buffers and biasing circuits is 1.65 mW from 1.2 V supply. The core ILFD area is 0.0157 mm2 even with an extra pair of inductors.

Publication
IEICE TRANSACTIONS on Electronics Vol.E94-C No.6 pp.1049-1052
Publication Date
2011/06/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E94.C.1049
Type of Manuscript
BRIEF PAPER
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