Analysis and design of an optimally coupled 5-GHz quadrature LC oscillator

Johan Van Der Tang; Pepijn Van De Ven; Dieter Kasperkovitz; Arthur Van Roermund

doi:10.1109/9780470545492.ch33

Analysis and design of an optimally coupled 5-GHz quadrature LC oscillator

Johan Van Der Tang, Pepijn Van De Ven, Dieter Kasperkovitz, Arthur Van Roermund

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

A S-GHzquadrature LC oscillator has been realized, in which the two LC stages are coupled with phase shifters. Analysis on the behavioral level shows that an N -stage LC oscillator is optimally coupled when each stage is connected with phase shifters providing ±180°/N phase shift. Simulation of the S-GHz two-stage quadrature LC oscillator reveals a 4.3-dB reduction in phase noise compared to a quadrature LC oscillator without phase shifters. Measurements of the S-GHz quadrature LC oscillator, made in a 30-GHz f_T process, show a phase noise lower than -113 dBc/Hz, with a resonator quality factor of only 4 and an oscillator core power dissipation of 21.2mW.

Original language	English
Title of host publication	Phase-Locking in High-Performance Systems
Subtitle of host publication	From Devices to Architectures
Publisher	Wiley-IEEE Press
Pages	301-305
Number of pages	5
ISBN (Electronic)	9780470545492
ISBN (Print)	0471447277, 9780471447276
DOIs	https://doi.org/10.1109/9780470545492.ch33
Publication status	Published - 1 Jan 2003
Externally published	Yes

Keywords

Couplings
Frequency modulation
Optical character recognition software
Phase noise
Phase shifters
Q factor

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10.1109/9780470545492.ch33

Cite this

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title = "Analysis and design of an optimally coupled 5-GHz quadrature LC oscillator",

abstract = "A S-GHzquadrature LC oscillator has been realized, in which the two LC stages are coupled with phase shifters. Analysis on the behavioral level shows that an N -stage LC oscillator is optimally coupled when each stage is connected with phase shifters providing ±180°/N phase shift. Simulation of the S-GHz two-stage quadrature LC oscillator reveals a 4.3-dB reduction in phase noise compared to a quadrature LC oscillator without phase shifters. Measurements of the S-GHz quadrature LC oscillator, made in a 30-GHz fT process, show a phase noise lower than -113 dBc/Hz, with a resonator quality factor of only 4 and an oscillator core power dissipation of 21.2mW.",

keywords = "Couplings, Frequency modulation, Optical character recognition software, Phase noise, Phase shifters, Q factor",

author = "{Van Der Tang}, Johan and {Van De Ven}, Pepijn and Dieter Kasperkovitz and {Van Roermund}, Arthur",

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AU - Van Der Tang, Johan

AU - Van De Ven, Pepijn

AU - Kasperkovitz, Dieter

AU - Van Roermund, Arthur

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N2 - A S-GHzquadrature LC oscillator has been realized, in which the two LC stages are coupled with phase shifters. Analysis on the behavioral level shows that an N -stage LC oscillator is optimally coupled when each stage is connected with phase shifters providing ±180°/N phase shift. Simulation of the S-GHz two-stage quadrature LC oscillator reveals a 4.3-dB reduction in phase noise compared to a quadrature LC oscillator without phase shifters. Measurements of the S-GHz quadrature LC oscillator, made in a 30-GHz fT process, show a phase noise lower than -113 dBc/Hz, with a resonator quality factor of only 4 and an oscillator core power dissipation of 21.2mW.

AB - A S-GHzquadrature LC oscillator has been realized, in which the two LC stages are coupled with phase shifters. Analysis on the behavioral level shows that an N -stage LC oscillator is optimally coupled when each stage is connected with phase shifters providing ±180°/N phase shift. Simulation of the S-GHz two-stage quadrature LC oscillator reveals a 4.3-dB reduction in phase noise compared to a quadrature LC oscillator without phase shifters. Measurements of the S-GHz quadrature LC oscillator, made in a 30-GHz fT process, show a phase noise lower than -113 dBc/Hz, with a resonator quality factor of only 4 and an oscillator core power dissipation of 21.2mW.

KW - Couplings

KW - Frequency modulation

KW - Optical character recognition software

KW - Phase noise

KW - Phase shifters

KW - Q factor

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PB - Wiley-IEEE Press

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Analysis and design of an optimally coupled 5-GHz quadrature LC oscillator

Abstract

Keywords

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