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Tunable radio frequency MEMS inductors with thermal bimorph actuators

Imed Zine-El-Abidine1,2, Michal Okoniewski1 and John G McRory2

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We have developed a CMOS-compatible micromachining process that allows us to build high quality, tunable radio frequency inductors. Inductors play a key role in wireless front ends; the additional flexibility offered by tunability can offer adaptability to devices such as filters, matching circuits and voltage-controlled oscillators. Our inductors have a tuning range of up to 30% with a quality factor of 25 and self-resonance over 35 GHz.


PACS

85.85.+j Micro- and nano-electromechanical systems (MEMS/NEMS) and devices

84.32.Hh Inductors and coils; wiring

Subjects

Electronics and devices

Nanoscale science and low-D systems

Dates

Issue 11 (November 2005)

Received 24 June 2005, in final form 17 August 2005

Published 20 September 2005



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