Sensors 2012, 12(4), 3789-3797; doi:10.3390/s120403789
Communication

Resonant Frequency Characteristics of a SAW Device Attached to Resonating Micropillars

1 School of Engineering, Monash University Sunway Campus, Jalan Lagoon Selatan, 46150 Bandar Sunway, Selangor Darul Ehsan, Malaysia 2 Electronics and Electrical Engineering and Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India 3 Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
* Author to whom correspondence should be addressed.
Received: 19 January 2012; in revised form: 29 February 2012 / Accepted: 1 March 2012 / Published: 23 March 2012
(This article belongs to the Section Physical Sensors)
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Abstract: Recently we reported experimental and simulation results on an increase in resonance frequency of a SAW resonator caused by mass loading of micropillars made of SU-8, attached normal to the surface of the resonator. We concluded that SAW resonator and the SU-8 micropillars in unison form a system of coupled resonators. We have now extended this work and performed a finite element method simulation to study the resonance frequency characteristics of the SAW-based coupled resonator. In this paper we report the effect of the resonance frequency of the micropillars on the resonance frequency of the system of coupled resonators, and observe the coupling of micropillar resonance and the propagating SAW as described in the well known Dybwad system of coupled resonators.
Keywords: surface acoustic wave devices; resonance; microsensors

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MDPI and ACS Style

Ramakrishnan, N.; Nemade, H.B.; Palathinkal, R.P. Resonant Frequency Characteristics of a SAW Device Attached to Resonating Micropillars. Sensors 2012, 12, 3789-3797.

AMA Style

Ramakrishnan N, Nemade HB, Palathinkal RP. Resonant Frequency Characteristics of a SAW Device Attached to Resonating Micropillars. Sensors. 2012; 12(4):3789-3797.

Chicago/Turabian Style

Ramakrishnan, N.; Nemade, Harshal B.; Palathinkal, Roy Paily. 2012. "Resonant Frequency Characteristics of a SAW Device Attached to Resonating Micropillars." Sensors 12, no. 4: 3789-3797.

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