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V-Band Varactor-less Interpolative-Phase-Tuning Oscillators with Multiphase Outputs

Authors Rong, Sujiang
Luong, Howard C. View this author's profile
Issue Date 2010
Source Proceedings IEEE Custom Integrated Circuits Conference (CICC),San Jose, CA, USA , 19-22 September 2010
Summary An interpolative-phase-tuning technique is presented to tune the frequency of millimeter-wave LC-based ring oscillators without using varactors. Two oscillator prototypes are designed and implemented in a 0.13-mu m CMOS process. The first oscillator operates at 50GHz with 8 output phases and measures phase noise of -127.8dBc/Hz at 10MHz offset, tuning range of 6.8%, and figure of merit (FOM) of 186.4dB while occupying chip area of 0.36mm(2). The second prototype oscillates at 60GHz with 4 output phases and measures phase noise of -120.6dBc/Hz at 10MHz offset, tuning range of 9%, and FOM of 180.6dB with chip area of 0.2mm(2).
ISSN 0886-5930
ISBN 978-1-4244-5758-8
Rights © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Language English
Format Conference paper
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