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Divide-by-3 Injection-Locked Frequency Divider Using Two Linear Mixers

Sheng-Lyang JANG, Cheng-Chen LIU, Jhin-Fang HUANG

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Summary :

This paper proposes a wide-locking range divide-by-3 injection-locked frequency divider (ILFD) fabricated in the 90 nm 1P9M CMOS technology. The divider consists of an nMOS cross-coupled LC oscillator and two injection MOSFETs in series with the cross-coupled nMOSFETs. The ILFD is formed with two linear mixers which share the same dc current so that a low power ILFD can be designed. At the supply voltage of 0.7 V, the free-running frequency is from 10.18 to 11.56 GHz, the current and power consumption of the divider without buffers are 2.8 mA and 1.96 mW, respectively. At the incident power of 0 dBm, the total operational locking range is 4.94 GHz, from the incident frequency 29.96 to 34.9 GHz.

Publication
IEICE TRANSACTIONS on Electronics Vol.E93-C No.1 pp.136-139
Publication Date
2010/01/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E93.C.136
Type of Manuscript
BRIEF PAPER
Category
Electronic Circuits

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