2017 SPIE Photonics West, San Francisco, USA
January 28 - February 2, 2017 (Sat - Thu), The Moscone Center
<Oral Session : Session 7: RF-Submillimeter-Wave II>
Wireless chemical sensor system based on electromagnetically energy-harvesting metamaterials
Wonwoo Lee, Yonghee Jung, Hyunseung Jung, and Hojin Lee
Abstract
We propose a novel wireless chemical sensor system by using energy-harvesting metamaterials at microwave frequencies. The proposed metamaterial sensor consists of a single split ring resonator and rectifier circuit for harvesting the energy at the specific frequency. We confirmed that the concentration of ethanol mixed with water can be detected by the proposed sensor by resonance property between the source antenna and the metamaterial which induces the variation in the energy-harvesting rate of our sensor system. Finally, we expect that our metamaterial-based wireless sensor can pave the way to the miniaturized wireless sensor systems including biochemical and dielectric environment sensors.