New approach for modelling distributed MEMS transmission lines

Download

index.pdf

Date

2006-04-01

Author

Topalli, K
Unlu, M
Demir, S
Aydın Çivi, Hatice Özlem
Koc, S
Akın, Tayfun

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

137
views

0
downloads

The paper presents a new and more accurate model for the distributed MEMS transmission line (DMTL) structures. In this new model, the MEMS bridges that are used as the loading elements of the DMTL structures are represented as low-impedance transmission lines, rather than a lumped CLR circuit. The model also includes LC networks at the transition points from the MEMS bridges to the unloaded parts of the DMTL, which are simply high-impedance transmission lines. These LC networks are employed to model the effects of the impedance discontinuities. The accuracy of the model is verified with simulations and measurements in the range 1-20 GHz on various DMTL structures that are fabricated with an RF MEMS process based on electroforming on a glass substrate. The measurement results of the fabricated devices are in good agreement with the model with an error less than 5%. It is shown that this new model provides better agreement than the conventional method for the DMTL structures with a bridge width larger than 50 mu m.

Subject Keywords

Phase shifters, Band

URI

https://hdl.handle.net/11511/33120

Journal

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION

DOI

https://doi.org/10.1049/ip-map:20050098

Collections

Department of Electrical and Electronics Engineering, Article

Suggestions

OpenMETU
Core

A new model for distributed mems transmission lines Topalli, K; Unlu, M; Sagkol, H; Demir, S; Aydın Çivi, Hatice Özlem; Koc, S; Akın, Tayfun (2004-06-26) 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 ...
A parametric modeling study on distributed MEMS transmission lines Unlu, M; Topalli, K; Demir, S; Aydın Çivi, Hatice Özlem; Koc, S; Akın, Tayfun (2004-10-14) This paper presents a parametric study of a new model for the distributed MEMS transmission line (DMTL) structures. In this new model, the MEMS bridges which are used as the loading elements of the DMTL structures are represented as low-impedance transmission lines, rather than a lumped CLR circuit. The model also includes LC networks at the transition points from the MEMS bridges to the unloaded parts of the DMTL which are simply high-impedance transmission lines. These LC networks are employed to model th...
Modelling and efficiency optimisation of UHF Dickson rectifiers Gharehbaghi, Kaveh; Zorlu, Ozge; Kocer, Fatih; Külah, Haluk (2016-11-01) This paper presents a new time-efficient modelling approach for UHF Dickson rectifiers. Due to the very low computation time, the approach can provide a quick and effective alternative to the standard transient simulations. The presented approach results in better estimation of the generated DC voltage and power conversion efficiency compared with the similar works in the literature. For the first time, an accurate mathematical relationship, including the non-zero reverse current, is expressed for finding t...
A self-powered integrated interface circuit for low power piezoelectric energy harvesters Chamanian, S.; Zorlu, O.; Külah, Haluk; Muhtaroglu, A. (2013-12-18) This paper presents a CMOS integrated interface circuit for piezoelectric energy harvesters (PEH). A fully self-powered circuit, based on Synchronous Electric Charge extraction (SECE) technique, is implemented for non-resonant piezoelectric harvesters generating low power, in 10s to 100s mu W range. The circuit is realized in standard 180 nm UMC CMOS technology. A switch control circuit is designed and optimized to extract maximum power independently from excitation changes of the PEH. The total power loss ...
35 GHz phased array antenna using DMTL phase shifters Guclu, Caner; Cetintepe, Cagri; Aydın Çivi, Hatice Özlem; Demir, Şimşek; Akın, Tayfun (2010-08-27) This paper presents the design of a monolithic phased array antenna with DMTL phase shifters on quartz substrate operating at 35 GHz. The design integrates DMTL phase shifters, rectangular slot antennas with the feed network comprising CPW lines, CPW T-junction and corners. On the four branches of the antenna, there are 5-bit phase shifters using 31 MEMS bridges, covering 360° with a resolution of 11.25°.

Citation Formats

K. Topalli, M. Unlu, S. Demir, H. Ö. Aydın Çivi, S. Koc, and T. Akın, “New approach for modelling distributed MEMS transmission lines,” IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, pp. 152–162, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33120.