Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Linda L.-W. Chow"'
Autor:
Zhongde Wang, Brian D. Jensen, John L. Volakis, Katsuo Kurabayashi, Kazuhiro Saitou, Linda L.-W. Chow
Publikováno v:
Journal of Microelectromechanical Systems. 15:1622-1631
Air-suspension of transmission-line structures using microelectromechanical systems (MEMS) technology provides the effective means to suppress substrate losses for radio-frequency (RF) signals. However, heating of these lines augmented by skin effect
Autor:
Kazuhiro Saitou, Katsuo Kurabayashi, Zhongde Wang, John L. Volakis, Brian D. Jensen, Linda L.-W. Chow
Publikováno v:
Journal of Micromechanics and Microengineering. 16:157-164
We propose an extended finite element-boundary integral method (EFE-BI) to model the electromagnetic (EM) behavior of RF-MEMS switches over a wide frequency range from UHF to terahertz. Our new method integrates EM with finite element heat transfer a
Autor:
Kuangwei Huang, John L. Volakis, Katsuo Kurabayashi, Linda L.-W. Chow, Brian D. Jensen, Kazuhiro Saitou
Publikováno v:
Journal of Microelectromechanical Systems. 14:935-946
This paper explores contact heating in microelectromechanical systems (MEMS) switches with contact spot sizes less than 100 nm in diameter. Experiments are conducted to demonstrate that contact heating causes a drop in contact resistance. However, ex
Publikováno v:
IEEE Electron Device Letters. 28:479-481
Direct contact RF microelectromechanical systems switches have demonstrated excellent ultrawideband performance from dc to 100 GHz. However, they are prone to failures due to contact adhesion and arcing, particularly for pure-gold/pure-gold contacts.
Autor:
Linda L.-W. Chow, Katsuo Kurabayashi
Publikováno v:
2010 IEEE 23rd International Conference on Micro Electro Mechanical Systems (MEMS).
The implementation of direct contact RF MEMS switches is challenging owing to their unstable contact resistance and low power handling/delivery. This paper carefully studies RF MEMS switch contact behavior and proposes a new method to suppress its in
Autor:
Brian D. Jensen, Kazuhiro Saitou, Zhongde Wang, Mohammed Shalaby, Katsuo Kurabayashi, John L. Volakis, Linda L.-W. Chow
Publikováno v:
Microelectromechanical Systems.
This paper presents the robust design optimization of an RF-MEMS direct contact cantilever switch for minimum actuation voltage and opening time, and maximum power handling capability. The design variables are the length and thickness of the entire c
Publikováno v:
2005 IEEE Antennas and Propagation Society International Symposium.
RF MEMS direct-contact switches exhibit many advantages over the conventional semiconductor switches; however, existing drawbacks such as low power handling, high pull-in voltage and long switch opening time are most critical. This paper presents an
Autor:
Katsuo Kurabayashi, Brian D. Jensen, Linda L.-W. Chow, Zhongde Wang, Kazuhiro Saitou, John L. Volakis
Publikováno v:
IEEE MTT-S International Microwave Symposium Digest, 2005..
This paper presents experimental data together with 2 modeling approaches to demonstrate the increased heating of MEMS suspended structures at radio frequencies due to skin effects. Distinguishable average temperature rises are measured at 2, 13.5, a
Autor:
Linda L.-W. Chow, Kazuhiro Saitou, Katsuo Kurabayashi, John L. Volakis, Kuangwei Huang, Brian D. Jensen
Publikováno v:
2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).
We have experimentally observed the failure of metal contact RF MEMS switches due to a rapid rise in contact resistance during switching. We were able to repair the failed switches through heating the contact asperities by applying sufficient contact
Autor:
Zhondge Wang, Linda L.-W. Chow, John L. Volakis, Katsuo Kurabayashi, Brian D. Jensen, Kazuhiro Saitou
Publikováno v:
Proceedings of the 16th International Symposium on Power Semiconductor Devices & IC's.
RF MEMS switches have been presented by several researchers for use in transmit/receive switch circuits, tunable filters, and beam steering of antenna arrays (Nguyen, C.T.-C. et al., 1998; Goldsmith, C. et al., 2001). The benefits of RF MEMS switches