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A new model for distributed mems transmission lines
Date
2004-06-26
Author
Topalli, K
Unlu, M
Sagkol, H
Demir, S
Aydın Çivi, Hatice Özlem
Koc, S
Akın, Tayfun
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper presents a new model for the distributed MEMS transmission line (DMTL) structure where the MEMS bridges that are placed periodically on a high-impedance transmission line are represented as low-impedance transmission lines, rather than a lumped CLR circuit. The model includes LC networks at the transition point from high-impedance to low-impedance lines to account for the effects of discontinuity. The accuracy of the model is verified with measurements on three types of DMTLs that are fabricated with an RF MEMS process based on electroforming on a glass substrate. The DMTLs have MEMS bridges with 100 mum width and interbridge spacings of 100, 200, and 400 mum. The measurement results of the fabricated devices are in good agreement with the model, verifying that modeling of MEMS bridges with transmission lines provides a good approximation for the loss mechanisms in DMTLs when the interbridge spacing approaches to MEMS bridge width.
Subject Keywords
Phase Shifters
,
Band
URI
https://hdl.handle.net/11511/38817
DOI
https://doi.org/10.1109/aps.2004.1331972
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar