Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials

Ghulam Mohayy Ud Din; Xiue Bao; Kaiyue Liu; Lili Fang; Liming Si; Houjun Sun

doi:10.1109/IMWS-AMP66175.2025.11136331

Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials

Ghulam Mohayy Ud Din^*
, Xiue Bao
, Kaiyue Liu
, Lili Fang
, Liming Si
, Houjun Sun

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Microwave sensors are playing an important role in various industries because of their strong applications in material characterization. The compact size, high sensitivity, and lower error are key in designing a sensor. In this work a planar microwave sensor is proposed. ELC-IDE structure and DGS are used to increase the strength of the electric field density. The permittivity of the solid and liquid material can be calculated from the resonance frequency. The experimental results show a high Q factor and high sensitivity 6%, and average error 4 %. The size of the proposed sensor is 30×42×2.5mm and operating frequency 4.4313GHz. This work will be applicable for industrial applications to characterize liquid and solid dielectric material.

Original language	English
Title of host publication	2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025
Publisher	Institute of Electrical and Electronics Engineers Inc.
Edition	2025
ISBN (Electronic)	9798331525347
DOIs	https://doi.org/10.1109/IMWS-AMP66175.2025.11136331
Publication status	Published - 2025
Externally published	Yes
Event	2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025 - Wuxi, China Duration: 23 Jul 2025 → 26 Jul 2025

Conference

Conference	2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025
Country/Territory	China
City	Wuxi
Period	23/07/25 → 26/07/25

Keywords

Defected Ground Structure
Electric-LC (ELC)
Inter-digital electrodes (IDEs)
Microfluidic channel
Planar microwave sensor
high sensitivity

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10.1109/IMWS-AMP66175.2025.11136331

Cite this

Ud Din, G. M., Bao, X., Liu, K., Fang, L., Si, L., & Sun, H. (2025). Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials. In 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025 (2025 ed.). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IMWS-AMP66175.2025.11136331

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title = "Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials",

abstract = "Microwave sensors are playing an important role in various industries because of their strong applications in material characterization. The compact size, high sensitivity, and lower error are key in designing a sensor. In this work a planar microwave sensor is proposed. ELC-IDE structure and DGS are used to increase the strength of the electric field density. The permittivity of the solid and liquid material can be calculated from the resonance frequency. The experimental results show a high Q factor and high sensitivity 6\%, and average error 4 \%. The size of the proposed sensor is 30×42×2.5mm and operating frequency 4.4313GHz. This work will be applicable for industrial applications to characterize liquid and solid dielectric material.",

keywords = "Defected Ground Structure, Electric-LC (ELC), Inter-digital electrodes (IDEs), Microfluidic channel, Planar microwave sensor, high sensitivity",

author = "\{Ud Din\}, \{Ghulam Mohayy\} and Xiue Bao and Kaiyue Liu and Lili Fang and Liming Si and Houjun Sun",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025 ; Conference date: 23-07-2025 Through 26-07-2025",

year = "2025",

doi = "10.1109/IMWS-AMP66175.2025.11136331",

language = "English",

booktitle = "2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Ud Din, GM, Bao, X, Liu, K, Fang, L, Si, L & Sun, H 2025, Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials. in 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025. 2025 edn, Institute of Electrical and Electronics Engineers Inc., 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025, Wuxi, China, 23/07/25. https://doi.org/10.1109/IMWS-AMP66175.2025.11136331

Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials. / Ud Din, Ghulam Mohayy; Bao, Xiue; Liu, Kaiyue et al.
2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025. 2025. ed. Institute of Electrical and Electronics Engineers Inc., 2025.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials

AU - Ud Din, Ghulam Mohayy

AU - Bao, Xiue

AU - Liu, Kaiyue

AU - Fang, Lili

AU - Si, Liming

AU - Sun, Houjun

PY - 2025

Y1 - 2025

N2 - Microwave sensors are playing an important role in various industries because of their strong applications in material characterization. The compact size, high sensitivity, and lower error are key in designing a sensor. In this work a planar microwave sensor is proposed. ELC-IDE structure and DGS are used to increase the strength of the electric field density. The permittivity of the solid and liquid material can be calculated from the resonance frequency. The experimental results show a high Q factor and high sensitivity 6%, and average error 4 %. The size of the proposed sensor is 30×42×2.5mm and operating frequency 4.4313GHz. This work will be applicable for industrial applications to characterize liquid and solid dielectric material.

AB - Microwave sensors are playing an important role in various industries because of their strong applications in material characterization. The compact size, high sensitivity, and lower error are key in designing a sensor. In this work a planar microwave sensor is proposed. ELC-IDE structure and DGS are used to increase the strength of the electric field density. The permittivity of the solid and liquid material can be calculated from the resonance frequency. The experimental results show a high Q factor and high sensitivity 6%, and average error 4 %. The size of the proposed sensor is 30×42×2.5mm and operating frequency 4.4313GHz. This work will be applicable for industrial applications to characterize liquid and solid dielectric material.

KW - Defected Ground Structure

KW - Electric-LC (ELC)

KW - Inter-digital electrodes (IDEs)

KW - Microfluidic channel

KW - Planar microwave sensor

KW - high sensitivity

UR - https://www.scopus.com/pages/publications/105016404781

U2 - 10.1109/IMWS-AMP66175.2025.11136331

DO - 10.1109/IMWS-AMP66175.2025.11136331

M3 - Conference contribution

AN - SCOPUS:105016404781

BT - 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025

Y2 - 23 July 2025 through 26 July 2025

ER -

Ud Din GM, Bao X, Liu K, Fang L, Si L, Sun H. Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials. In 2025 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2025. 2025 ed. Institute of Electrical and Electronics Engineers Inc. 2025 doi: 10.1109/IMWS-AMP66175.2025.11136331

Modified ELC-IDE Microwave Planar Sensor for Characterization of Solid and Liquid Materials

Abstract

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Keywords

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