Using the memristive properties of vanadium dioxide, we experimentally demonstrate an adaptive filter by placing a memristor into an LC contour. This circuit reacts to the application of select frequency signals by sharpening the quality factor of its resonant response, and thus “learns” according to the input waveform. The proposed circuit employs only analog passive elements, and may find applications in biologically inspired processing and information storage. We also extend the learning-circuit framework mathematically to include memory-reactive elements, such as memcapacitors and meminductors, and show how this expands the functionality of adaptive memory filters.
Published in Applied Physics Letters, ed. Nghi Q. Lam, Volume 97, Issue 9, 2010, pages 093502-1-093502-3.
Driscoll, T., Quinn, J., Klein, S., Kim, H. T., Kim, B. J., Pershin, Y. V., Di Ventra, M, & Basov, D. N. (2010). Memristive adaptive filters. Applied Physics Letters, 97(9), 093502-1 - 093502-3. DOI: 10.1063/1.3485060
© Applied Physics Letters, 2010, American Institute of Physics