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http://dx.doi.org/10.7471/ikeee.2019.23.3.839

Characterization of Microfluidically Variable Capacitors  

Koo, Chiwan (Dept. of Electronics and Control Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.23, no.3, 2019 , pp. 839-843 More about this Journal
Abstract
This paper demonstrates a variable capacitor using fluids as dielectric material and investigates the possibility of its application to a magnetic resonance microscopy's coil. The capacitor structure was integrated with a microfluidic channel and the capacitance was measured while changing the filling percentage of fluids in the channel. The measured capacitance when filling DI water and mineral oil was changed from 1.7 pF to 12 pF and from 1.7 pF to 2 pF, respectively.
Keywords
Microfluidic; tunable capacitor; variable capacitor; Microfluidic RF electronics; RF tunable;
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  • Reference
1 J. J. Carr, Secrets of RF Circuit Design. New York, San Francisco, Washington, D.C.: McGraw-Hill, 2001.
2 R. Mahameed and G. M. Rebeiz, "Electrostatic RF MEMS Tunable Capacitors with Analog Tunability and Low Temperature Sensitivity," in IEEE MTT-S International Microwave Symposium, pp.1254-1257, 2010. DOI: 10.1109/MWSYM.2010.5514843   DOI
3 C. H. Lee, N. Bengtsson, S. M. Chrzanowski, J. J. Flint, G. A. Walter, S. J. Blackband, "Magnetic Resonance Microscopy (MRM) of Single Mammalian Myofibers and Myonuclei," Scientific Reports, 7, 39496, 2017. DOI: 10.1038/srep39496   DOI
4 R. Sharma, "Microimaging of hairless rat skin by magnetic resonance at 900 MHz," Magnetic Resonance Imaging. vol.27, no.2, pp.240-255, 2009. DOI: 10.1016/j.mri.2008.06.013   DOI
5 S. J. Chen, C. Y. Lee, and E. S. Kim, "Integration of Piezoelectric Tunable Capacitors and Bonded-wire Inductors for Contactless RF Switch and Tunable Filter," Sensors and Actuators A: Physical, 165, pp.73-78, 2011. DOI: 10.1016/j.sna.2009.12.026   DOI
6 G. M. Whitesides, "The origins and the future of microfluidics," Nature, 442, pp.368-373, 2006.   DOI
7 S. O. Choi, Y. K. Yoon, M. G. Allen, and A. T. Hunt, "A Tunable Capacitor Using an Immiscible Bifluidic Dielectric," in IEEE MTT-S International Microwave Symposium, pp.873-876, 2004. DOI: 10.1109/MWSYM.2004.1339108   DOI
8 G. Li, M. Parmar, and D. W. Lee. "An oxidized liquid metal-based microfluidic platform for tunable electronic device applications," Lab on a Chip, vol.15, no.3, pp.766-775, 2015. DOI: 10.1039/c4lc01013b   DOI