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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sheng-Shian Li Yu-Wei Lin Zeying Ren Nguyen, C.T.C. |
| Copyright Year | 2005 |
| Description | Author affiliation: Center for Wireless Integrated Micro Syst., Michigan Univ., Ann Arbor, MI, USA (Sheng-Shian Li; Yu-Wei Lin; Zeying Ren; Nguyen, C.T.C.) |
| Abstract | Bridged MEMS-based micromechanical filters have been demonstrated that use a self-switching property of their dc-biased capacitive transducers to achieve zero-loss on/off filter switching without the need for lossy series switches, and with settling times down to 1.5 /spl mu/s. By dispensing with the need for series switches in the signal path, a small bank of 0.087% bandwidth, 9-MHz beam-based filters has achieved programmable channel/band selection with only 3 dB of insertion loss, comprised entirely of filter loss (i.e., no switch loss), with switching times 7/spl times/ faster than the typical 10 /spl mu/s of some of the fastest RF MEMS switches, and without the high actuation voltages (>90V) and reliability issues often associated with RF MEMS switches. Higher frequency 155-MHz disk resonators achieve even faster switching speeds, with settling times down to only 430 ns. Equipped with this self-switching property, capacitively transduced micromechanical resonators are attractive candidates for realization of the switchable filter banks targeted for future wireless transceivers. |
| File Size | 1062284 |
| File Format | |
| ISBN | 0780390539 |
| DOI | 10.1109/FREQ.2005.1573915 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-08-29 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Micromechanical devices Filter bank Switches Channel bank filters Radiofrequency microelectromechanical systems Transducers RF signals Bandwidth Insertion loss Resonator filters |
| Content Type | Text |
| Resource Type | Article |
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