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Low-profile wireless passive resonators for sensing

United States Patent

9,612,164
April 4, 2017
View the Complete Patent at the US Patent & Trademark Office
A resonator for sensing a physical or an environmental parameter includes a support having a top surface that provides a ground plane, and a polymer-derived ceramic (PDC) element positioned on the top surface including a PDC layer, and a metal patch on the PDC layer. The metal patch is electrically isolated from all surrounding structure, and the resonator has a resonant frequency that changes as a function of the physical or environmental parameter. A system for wirelessly sensing a physical or environmental parameter includes at least one resonator and a wireless RF reader located remotely from the resonator for transmitting a wide-band RF interrogation signal that excites the resonator. The wireless RF reader detects a sensing signal retransmitted by the resonator and includes a processor for determining the physical or environmental parameter at the location of the resonator from the sensing signal.
Gong; Xun (Oviedo, FL), An; Linan (Oviedo, FL)
University of Central Florida Research Foundation, Inc. (Orlando, FL)
14/ 338,489
20150028889
July 23, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with U.S. Government support under National Science Foundation (NSF) contract ECCS-0823950 and under Department of Energy (DOE) contract DE-FE0001241. The U.S. Government has certain rights in this invention.