DocumentCode
3361345
Title
Twisted inductors for low coupling mixed-signal and RF applications
Author
Neihart, Nathan M. ; Allstot, David J. ; Miller, Matt ; Rakers, Pat
Author_Institution
Univ. of Washington, Seattle, WA
fYear
2008
fDate
21-24 Sept. 2008
Firstpage
575
Lastpage
578
Abstract
Parasitic magnetic coupling is a major design challenge for integrated circuit designers. Fundamentally, it originates in conventional spiral inductors because the magnetic field is not localized, extending far beyond the perimeter. This paper introduces a twisted winding scheme for inductors that increases the localization of the magnetic field, reducing parasitic magnetic coupling by as much as 3100X and the edge-to-edge spacing of inductors by 10X. These results are validated in a 0.18 mum CMOS process.
Keywords
inductors; magnetic circuits; magnetic fields; mixed analogue-digital integrated circuits; windings; CMOS process; edge-to-edge spacing; magnetic field; parasitic magnetic coupling; twisted inductors; Coupling circuits; Inductors; MIMO; Magnetic fields; Magnetic separation; Radio frequency; Silicon; Spirals; Transceivers; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Custom Integrated Circuits Conference, 2008. CICC 2008. IEEE
Conference_Location
San Jose, CA
Print_ISBN
978-1-4244-2018-6
Electronic_ISBN
978-1-4244-2019-3
Type
conf
DOI
10.1109/CICC.2008.4672150
Filename
4672150
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