Low Settling Time offering Series Capacitive RF MEMS Switch for Wi-Fi Applications
K Rajasekar1, S. Sunithamani2
1K Rajasekar, Research Scholar, K L University, Guntur (Andhra Pradesh), India.
2Dr. S. Sunithamani, Associate Professor, K L University, Guntur (Andhra Pradesh), India.
Manuscript received on 08 February 2019 | Revised Manuscript received on 21 February 2019 | Manuscript Published on 04 March 2019 | PP: 439-442 | Volume-7 Issue-5S2 January 2019 | Retrieval Number: ES2079017519/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper, a novel cantilever series capacitance based RF MEMS switch proposed for Wi-Fi applications. We have extended the analysis on the effect of quality factor on the switch on settling time. The holes in the cantilever help the switch to reduce the settling time. The quality factor of the switch designed with Al cantilever is 0.49. Low quality factor indicated damping effect is reduced. Si3N4 is used as dielectric material, with this the switch is offering high capacitance ratio. The series switch is offering high isolation at 2.4 GHz, so the proposed switch can be used in Wi-Fi applications as an isolator. The isolation losses of the switch is -30 dB, insertion loss is -0.34 dB and pull-in voltage required for the switching is 20 V.
Keywords: Series Switches, Dielectric Losses, Cantilever, CPW Transmission Line.
Scope of the Article: Low-power design