Micromechanical mixer-filters ("mixlers")

A device comprised of interlinked micromechanical resonators with capacitive mixer transducers has been demonstrated to perform both frequency translation (i.e., mixing) and highly selective low-loss filtering of applied electrical input signals. In particular, successful downconversion of a 200-MHz...

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Bibliographic Details
Published inJournal of microelectromechanical systems Vol. 13; no. 1; pp. 100 - 112
Main Authors Ark-Chew Wong, Nguyen, C.T.-C.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Band pass filters
Devices
Electric potential
Filtering
Filtration
Frequency conversion
Intermediate frequencies
Intermediate frequency
Micromechanical devices
Passive filters
Radio frequencies
Radio frequency
Resonator filters
RF signals
Transducers
Voltage
Voltage-controlled oscillators
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Summary:A device comprised of interlinked micromechanical resonators with capacitive mixer transducers has been demonstrated to perform both frequency translation (i.e., mixing) and highly selective low-loss filtering of applied electrical input signals. In particular, successful downconversion of a 200-MHz radio frequency (RF) signal down to a 37-MHz intermediate frequency (IF) and subsequent high-Q bandpass filtering at the IF are demonstrated using this single, passive, micromechanical device, all with less than 13 dB of combined mixing conversion and filter insertion loss. The mixer-filter (or "mixler") RF-to-IF voltage transfer function is shown to depend upon a ratio of local oscillator amplitude and applied bias voltages.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1057-7157
1941-0158
DOI:10.1109/JMEMS.2003.823218