Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame
This paper examines a new technique to improve the figure of merit of laterally vibrating RF-MEMS resonators through an energy-preserving suspended addendum frame structure using finite element analysis. The proposed suspended addendum frame on the sides of the resonant plate helps as a mechanical v...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/13/1/105 |
| _version_ | 1827664144645488640 |
|---|---|
| author | Temesgen Bailie Workie Zhaohui Wu Panliang Tang Jingfu Bao Ken-ya Hashimoto |
| author_facet | Temesgen Bailie Workie Zhaohui Wu Panliang Tang Jingfu Bao Ken-ya Hashimoto |
| author_sort | Temesgen Bailie Workie |
| collection | DOAJ |
| description | This paper examines a new technique to improve the figure of merit of laterally vibrating RF-MEMS resonators through an energy-preserving suspended addendum frame structure using finite element analysis. The proposed suspended addendum frame on the sides of the resonant plate helps as a mechanical vibration isolator from the supporting substrate. This enables the resonator to have a low acoustic energy loss, resulting in a higher quality factor. The simulated attenuation characteristics of the suspended addendum frame are up to an order of magnitude larger than those achieved with the conventional structure. Even though the deployed technique does not have a significant impact on increasing the effective electromechanical coupling coefficient, due to a gigantic improvement in the unloaded quality factor, from 4106 to 51,136, the resonator with the suspended frame achieved an 11-folds improvement in the figure of merit compared to that of the conventional resonator. Moreover, the insertion loss was improved from 5 dB down to a value as low as 0.7 dB. Furthermore, a method of suppressing spurious mode is demonstrated to remove the one incurred by the reflected waves due to the proposed energy-preserving structure. |
| first_indexed | 2024-03-10T00:55:04Z |
| format | Article |
| id | doaj.art-b62e50ab696747328f16f5eb7c875c77 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T00:55:04Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-b62e50ab696747328f16f5eb7c875c772023-11-23T14:45:01ZengMDPI AGMicromachines2072-666X2022-01-0113110510.3390/mi13010105Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum FrameTemesgen Bailie Workie0Zhaohui Wu1Panliang Tang2Jingfu Bao3Ken-ya Hashimoto4School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaThis paper examines a new technique to improve the figure of merit of laterally vibrating RF-MEMS resonators through an energy-preserving suspended addendum frame structure using finite element analysis. The proposed suspended addendum frame on the sides of the resonant plate helps as a mechanical vibration isolator from the supporting substrate. This enables the resonator to have a low acoustic energy loss, resulting in a higher quality factor. The simulated attenuation characteristics of the suspended addendum frame are up to an order of magnitude larger than those achieved with the conventional structure. Even though the deployed technique does not have a significant impact on increasing the effective electromechanical coupling coefficient, due to a gigantic improvement in the unloaded quality factor, from 4106 to 51,136, the resonator with the suspended frame achieved an 11-folds improvement in the figure of merit compared to that of the conventional resonator. Moreover, the insertion loss was improved from 5 dB down to a value as low as 0.7 dB. Furthermore, a method of suppressing spurious mode is demonstrated to remove the one incurred by the reflected waves due to the proposed energy-preserving structure.https://www.mdpi.com/2072-666X/13/1/105acoustic resonatorseffective electromechanical coupling coefficientfigure of meritquality factorinsertion lossRF-MEMS |
| spellingShingle | Temesgen Bailie Workie Zhaohui Wu Panliang Tang Jingfu Bao Ken-ya Hashimoto Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame Micromachines acoustic resonators effective electromechanical coupling coefficient figure of merit quality factor insertion loss RF-MEMS |
| title | Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame |
| title_full | Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame |
| title_fullStr | Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame |
| title_full_unstemmed | Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame |
| title_short | Figure of Merit Enhancement of Laterally Vibrating RF-MEMS Resonators via Energy-Preserving Addendum Frame |
| title_sort | figure of merit enhancement of laterally vibrating rf mems resonators via energy preserving addendum frame |
| topic | acoustic resonators effective electromechanical coupling coefficient figure of merit quality factor insertion loss RF-MEMS |
| url | https://www.mdpi.com/2072-666X/13/1/105 |
| work_keys_str_mv | AT temesgenbailieworkie figureofmeritenhancementoflaterallyvibratingrfmemsresonatorsviaenergypreservingaddendumframe AT zhaohuiwu figureofmeritenhancementoflaterallyvibratingrfmemsresonatorsviaenergypreservingaddendumframe AT panliangtang figureofmeritenhancementoflaterallyvibratingrfmemsresonatorsviaenergypreservingaddendumframe AT jingfubao figureofmeritenhancementoflaterallyvibratingrfmemsresonatorsviaenergypreservingaddendumframe AT kenyahashimoto figureofmeritenhancementoflaterallyvibratingrfmemsresonatorsviaenergypreservingaddendumframe |