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Novel low-voltage RF-MEMS switch: design and simulation

Ma, Li Ya and Soin, Norhayati and Nordin, Anis Nurashikin (2014) Novel low-voltage RF-MEMS switch: design and simulation. In: IEEE International Conference on Semiconductor Electronics, Proceedings, ICSE, 27th-29th Aug 2014, Kuala Lumpur.

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This paper presents a novel design of a low-voltage radio frequency (RF) micro-electromechanical system (MEMS) switch with its electro-mechanical and microwave characteristics’ simulation, as well as its virtual fabrication process. The RF-MEMS switch employs a shunt capacitive structure. There are eight beams supporting a rectangular membrane to suspend over a coplanar waveguide (CPW) transmission line. The outer four crab-leg beams are used to bypass the signal line to the ground by the coupling capacitance and via when switch is actuated; and the inner four serpentine beams are used to supply the DC actuation voltage to the membrane. The developed RF-MEMS switch has a very low pull-in voltage of 3.53V; and the maximum von Mises stress under actuated condition is 13.1808MPa. The capacitance ratio of the switch is 218.5, with switch-on capacitance of 68fF. The switch’s microwave characteristics are obtained by AWR Design Environment 10® simulation; its insertion loss and isolation is -1.7532dB and -18.394dB respectively at 20GHz; and at frequency of 60GHz, the insertion loss is -7.2499dB and isolation is -27.293dB. A simple low-cost three-mask process with photoresist (PR-S1800) as sacrifice layer to release the membrane is proposed in this design; and a virtual fabricated device is simulated using IntelliFab v8.7® software.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 3239/39111
Uncontrolled Keywords: RF-MEMS; switch; low-voltage; electrostatic; virtual fabrication
Subjects: T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Dr. Anis Nurashikin Nordin
Date Deposited: 14 Nov 2014 08:45
Last Modified: 26 Sep 2017 17:03
URI: http://irep.iium.edu.my/id/eprint/39111

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