A gas sensor using double split-ring resonator coated with conducting polymer at microwave frequncies

Byung Hyun Kim; Yong Joo Lee; Hee Jo Lee; Yunseog Hong; Jong Gwan Yook; Moon Hyun Chung; Wonseok Cho; Hyang Hee Choi

doi:10.1109/ICSENS.2014.6985379

A gas sensor using double split-ring resonator coated with conducting polymer at microwave frequncies

Byung Hyun Kim, Yong Joo Lee, Hee Jo Lee, Yunseog Hong, Jong Gwan Yook, Moon Hyun Chung, Wonseok Cho, Hyang Hee Choi

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Conference article

17 Citations (Scopus)

Abstract

In this research, a gas sensor using double splitring resonator (DSRR) incorporated with conducting polymer (CP) is proposed at microwave frequencies (Ku-band). The DSRR fabricated on printed circuit board (PCB) is excited by a highimpedance microstrip line, and the CP is coated inside of an inner circle of the DSRR. Electrical characteristics of the CP can be deviated by an interaction between CP and a target gas, and then this deviation of electrical characteristic is demonstrated by S₂₁ frequency response of the DSRR. To examine the performance of the proposed sensor, 100 ppm ethanol (C₂H₅OH) gas is exposed at room temperature. According to the measured result, the S₂₁ resonance frequency of the DSRR is shifted by 220 MHz and simultaneously, the resonance amplitude is changed by 0.79 dB level. It is clearly found that the DSRR with CP material can be a good candidate for a sensitive gas sensor operating at microwave frequencies.

Original language	English
Article number	6985379
Pages (from-to)	1815-1818
Number of pages	4
Journal	Proceedings of IEEE Sensors
Volume	2014-December
Issue number	December
DOIs	https://doi.org/10.1109/ICSENS.2014.6985379
Publication status	Published - 2014 Dec 12
Event	13th IEEE SENSORS Conference, SENSORS 2014 - Valencia, Spain Duration: 2014 Nov 2 → 2014 Nov 5

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1109/ICSENS.2014.6985379

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title = "A gas sensor using double split-ring resonator coated with conducting polymer at microwave frequncies",

abstract = "In this research, a gas sensor using double splitring resonator (DSRR) incorporated with conducting polymer (CP) is proposed at microwave frequencies (Ku-band). The DSRR fabricated on printed circuit board (PCB) is excited by a highimpedance microstrip line, and the CP is coated inside of an inner circle of the DSRR. Electrical characteristics of the CP can be deviated by an interaction between CP and a target gas, and then this deviation of electrical characteristic is demonstrated by S21 frequency response of the DSRR. To examine the performance of the proposed sensor, 100 ppm ethanol (C2H5OH) gas is exposed at room temperature. According to the measured result, the S21 resonance frequency of the DSRR is shifted by 220 MHz and simultaneously, the resonance amplitude is changed by 0.79 dB level. It is clearly found that the DSRR with CP material can be a good candidate for a sensitive gas sensor operating at microwave frequencies.",

author = "Kim, {Byung Hyun} and Lee, {Yong Joo} and Lee, {Hee Jo} and Yunseog Hong and Yook, {Jong Gwan} and Chung, {Moon Hyun} and Wonseok Cho and Choi, {Hyang Hee}",

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A gas sensor using double split-ring resonator coated with conducting polymer at microwave frequncies. / Kim, Byung Hyun; Lee, Yong Joo; Lee, Hee Jo; Hong, Yunseog; Yook, Jong Gwan; Chung, Moon Hyun; Cho, Wonseok; Choi, Hyang Hee.

In: Proceedings of IEEE Sensors, Vol. 2014-December, No. December, 6985379, 12.12.2014, p. 1815-1818.

Research output: Contribution to journal › Conference article

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T1 - A gas sensor using double split-ring resonator coated with conducting polymer at microwave frequncies

AU - Kim, Byung Hyun

AU - Lee, Yong Joo

AU - Lee, Hee Jo

AU - Hong, Yunseog

AU - Yook, Jong Gwan

AU - Chung, Moon Hyun

AU - Cho, Wonseok

AU - Choi, Hyang Hee

PY - 2014/12/12

Y1 - 2014/12/12

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