NDLI: A 1.1-V Regulator-Stabilized 21.4-GHz VCO and a 115% Frequency-Range Dynamic Divider for <formula formulatype=inline><tex Notation=TeX>$K$</tex> </formula>-Band Wireless Communication

Content Provider	IEEE Xplore Digital Library
Author	Nakamura, T. Masuda, T. Shiramizu, N. Nakamura, A. Washio, K.
Copyright Year	1963
Abstract	A 21.4-GHz 1.1-V regulator-stabilized voltage-controlled oscillator (VCO) with a dual-transformer configuration and a 115% frequency-range dynamic divider-both based on 0.18-μm SiGe BiCMOS technology-were developed. As for the VCO, the combination of two types of transformers, which exhibit high input impedance and capacitive-input impedance, respectively, provides both wide frequency-tuning range and low phase noise. The measured phase noise of the VCO at a 1-MHz offset frequency is - 109 dBc/Hz with 11.1-mW dc power dissipation (including the regulator). The figure of merit of the VCO is -192 dBc/Hz, which is the best value among 20-GHz-class silicon-based VCOs (to the best of the authors' knowledge). As for the divider, a two-stage single-balanced mixer reduces dc power and increases operation frequency range. The measured operation frequency of the divider is from 7 to 26 GHz while dissipating only 1.15-mW dc power and occupying a small area (0.004 mm²). These performance results indicate that the proposed VCO and the divider are suitable for low-power transceivers of quasi-millimeter-wave wireless communication systems.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	2823
Ending Page	2832
Page Count	10
File Size	2062333
File Format	PDF
ISSN	00189480
Volume Number	60
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage-controlled oscillators Gain Mixers Impedance Phase noise Inductors voltage-controlled oscillator (VCO) Dividers microwave and millimeter-wave circuits SiGe BiCMOS transformers
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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