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http://dx.doi.org/10.7236/JIWIT.2012.12.4.1

A Contactless Microwave Sensor for Detection of particular Materials  

Ki, Hyeon-Cheol (Dept. of Electronic Engineering, Gachon University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.12, no.4, 2012 , pp. 1-6 More about this Journal
Abstract
We suggested a microwave sensor structure and fabricated experimentally to detect particular particles in the air which are difficult to detect using conventional UWB sensors because their reaction frequencies to electromagnetic waves are too high. In the experiment to detect water particles in the air with up-conversion frequency of 10GHz, we verified detect signal amplitude variation of 75% depending on presence or absence of water particles. The suggested structure can be useful to detect particular materials at the high frequencies more than a few 10th GHz, because the same method can be applied to detect other materials.
Keywords
UWB 센서;마이크로웨이브 센서;광대역 센서;물질검출;무선 센서;
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