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Metamaterial Based Passive Wireless Temperature Sensor
Author(s) -
Karim Hasanul,
Delfin Diego,
Chavez Luis A.,
Delfin Luis,
Martinez Ricardo,
Avila Jose,
Rodriguez Carlos,
Rumpf Raymond C.,
Love Norman,
Lin Yirong
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600741
Subject(s) - materials science , fabrication , repeatability , dielectric , optoelectronics , metamaterial , barium titanate , boron nitride , allan variance , sensitivity (control systems) , resonator , standard deviation , electronic engineering , nanotechnology , engineering , medicine , chemistry , alternative medicine , statistics , mathematics , chromatography , pathology
This paper presents the fabrication, modeling, and testing of a metamaterial based passive wireless temperature sensor consisting of an array of closed ring resonators (CRRs) embedded in a dielectric material matrix. A mixture of 70 vol% Boron Nitride (BN) and 30 vol% Barium Titanate (BTO) is used as the dielectric matrix and copper washers are used as CRRs. Conventional powder compression is used for the sensor fabrication. The feasibility of wireless temperature sensing is demonstrated up to 200 °C. The resonance frequency of the sensor decreases from 11.93 GHz at room temperature to 11.85 GHz at 200 °C, providing a sensitivity of 0.462 MHz °C. The repeatability of temperature sensing tests is carried out to quantify the repeatability. The highest standard deviation observed is 0.012 GHz at 200 °C.