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A CMOS high-performance inductorless ring VCO with extended monotonic tuning voltage range

Title
A CMOS high-performance inductorless ring VCO with extended monotonic tuning voltage range
Authors
Zhang ChangchunWang XinwenFang JunliangLu, TangPark, Sung Min
Ewha Authors
박성민
SCOPUS Author ID
박성민scopus
Issue Date
2018
Journal Title
IEICE ELECTRONICS EXPRESS
ISSN
1349-2543JCR Link
Citation
IEICE ELECTRONICS EXPRESS vol. 15, no. 23
Keywords
CMOSring VCOmonotonic tuningphase noisedual-delay
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Indexed
SCIE; SCOPUS WOS
Document Type
Article
Abstract
A high-performance inductorless ring VCO with wide tuning range and extended monotonic tuning voltage range (MTVR) is proposed and fabricated in standard 0.18 mu m CMOS technology. By combining the crossing-strength-tuning and load-resistance-tuning techniques with opposite tuning characteristics, the MTVR for the proposed VCO can be widened significantly. The dual-delay path technique is employed to improve the oscillating frequency. The cross-coupled pair is added to reduce phase noise and guarantee reliable differential-mode oscillation over the wide tuning voltage range. With an occupied area of 475 mu m x 275 mu m and a single supply voltage of 1.8 V, measurement results show the proposed VCO can oscillate with a frequency range from 1.57 to 2.76 GHz, phase noise of -91.12 dBc/Hz @ 1 MHz and FOMT of 164.5 dBc/Hz @ 1 MHz and extended MTVR.
DOI
10.1587/elex.15.20180941
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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