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Monolithic inductor modeling and optimization

Troedsson, Niklas LU and Sjöland, Henrik LU (2006) In Radio Design in Nanometer Technologies p.217-240
Abstract
It has become a necessity to use on-chip inductors in radio frequency integrated circuits. Particularly oscillators need inductors to archive high performance. In LC oscillators the quality factor of the inductor is critical to the phase noise performance, and since the self-resonance frequency of the inductor will limit the operating frequency and tuning range of the oscillator, careful optimization is needed. As the transistors are scaled to smaller geometries, the supply voltage must be reduced. Since the inductors have almost zero DC voltage drop they can be used to increase the voltage headroom in low voltage RF circuits. For cross-coupled differential pair LC oscillators, an inductor at the source node of the differential pair will... (More)
It has become a necessity to use on-chip inductors in radio frequency integrated circuits. Particularly oscillators need inductors to archive high performance. In LC oscillators the quality factor of the inductor is critical to the phase noise performance, and since the self-resonance frequency of the inductor will limit the operating frequency and tuning range of the oscillator, careful optimization is needed. As the transistors are scaled to smaller geometries, the supply voltage must be reduced. Since the inductors have almost zero DC voltage drop they can be used to increase the voltage headroom in low voltage RF circuits. For cross-coupled differential pair LC oscillators, an inductor at the source node of the differential pair will not only increase the signal headroom [1], but if resonating at twice the oscillation frequency it will also increase the phase noise performance significantly [2]. The gain and noise factor of LNAs and mixers can also be improved by using inductors to tune out parasitic capacitances [3]. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Radio Design in Nanometer Technologies
editor
Ismail, Mohammed
pages
217 - 240
publisher
Springer
external identifiers
  • Scopus:79953229844
ISBN
1402048238
DOI
10.1007/978-1-4020-4824-1_11
language
English
LU publication?
yes
id
f844dfc7-ca1e-49ab-83ec-a9b27be7719c (old id 1244519)
date added to LUP
2008-10-08 14:10:10
date last changed
2016-10-13 04:46:51
@misc{f844dfc7-ca1e-49ab-83ec-a9b27be7719c,
  abstract     = {It has become a necessity to use on-chip inductors in radio frequency integrated circuits. Particularly oscillators need inductors to archive high performance. In LC oscillators the quality factor of the inductor is critical to the phase noise performance, and since the self-resonance frequency of the inductor will limit the operating frequency and tuning range of the oscillator, careful optimization is needed. As the transistors are scaled to smaller geometries, the supply voltage must be reduced. Since the inductors have almost zero DC voltage drop they can be used to increase the voltage headroom in low voltage RF circuits. For cross-coupled differential pair LC oscillators, an inductor at the source node of the differential pair will not only increase the signal headroom [1], but if resonating at twice the oscillation frequency it will also increase the phase noise performance significantly [2]. The gain and noise factor of LNAs and mixers can also be improved by using inductors to tune out parasitic capacitances [3].},
  author       = {Troedsson, Niklas and Sjöland, Henrik},
  editor       = {Ismail, Mohammed},
  isbn         = {1402048238},
  language     = {eng},
  pages        = {217--240},
  publisher    = {ARRAY(0xa398f88)},
  series       = {Radio Design in Nanometer Technologies},
  title        = {Monolithic inductor modeling and optimization},
  url          = {http://dx.doi.org/10.1007/978-1-4020-4824-1_11},
  year         = {2006},
}