23 April 2017 Memristor-capacitor passive filters to tune both cut-off frequency and bandwidth
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032379 (2017) https://doi.org/10.1117/12.2264963
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
In various optical sensor applications, programmable analog filters are desirable to reduce the hardware requirement. Memristor is two state programmable nonvolatile resistor, which has a small size and low power consumption. Using these resistance switching characteristics of a memristor, we propose a novel memristor-capacitor (MC) based printed low pass and high pass filters for analog circuits to achieve tunable cut-off frequencies and bandwidth. The cut-off frequencies of filters are controlled through a memristor state switching (HRS/LRS), whereas the capacitor has a fixed value. The proposed MC filters utilize graphene/poly 4-vinlyphenol (G/PVP) for dielectric layer of capacitors and Graphene Quatum Dots (GQDs)/PVP for an active layer of memristor, and these layers are fabricated on ITO coated flexible PET substrate through electrohydrodynamic (EHD) technique. Both MC filters are designed as parameters of two state memristance and a capacitance. From comparison between designed and fabricated filters, we show that they are matched quite well.
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Shawkat Ali, Arshad Hassan, Gul Hassan, Jinho Bae, Chong Hyun Lee, "Memristor-capacitor passive filters to tune both cut-off frequency and bandwidth", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032379 (23 April 2017); doi: 10.1117/12.2264963; https://doi.org/10.1117/12.2264963
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