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Three-phase complementary colpitts VCO implemented with A LC-ring resonator

✍ Scribed by Sheng-Lyang Jang; Ta-Yu Cheng; Chia-Wei Chang; Ching-Wen Hsue

Book ID
102519624
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
392 KB
Volume
53
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A 7‐GHz complementary Colpitts voltage‐controlled oscillator (VCO) in 0.18‐μm CMOS process is proposed to generate three output phases with wide tuning range.The designed VCO uses three single‐ended current‐reused VCOs coupled via the three‐resonator inductors connected in a delta configuration. The proposed VCO oscillates from 6.25 to 7.27 GHz, and the power consumption is 11.47 mW at 1.5‐V supply voltage. The measured phase noise is about −115.25 dBc/Hz at 1‐MHz offset frequency from 6.22 GHz. The VCO provides a figure of merit of −184.1 dBc/Hz with the effect of tuning range. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2308–2310, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26238

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