Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors
To demonstrate that the silicone-based polymer polydimethylsiloxane (PDMS) is suitable as a substrate for flexible/wearable antennae and sensors, an investigation of its various properties was carried out. The substrate was first developed in compliance with the requirements, and then its anisotropy...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/4/735 |
| _version_ | 1797604348462628864 |
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| author | Praveen Kumar Sharma Jae-Young Chung |
| author_facet | Praveen Kumar Sharma Jae-Young Chung |
| author_sort | Praveen Kumar Sharma |
| collection | DOAJ |
| description | To demonstrate that the silicone-based polymer polydimethylsiloxane (PDMS) is suitable as a substrate for flexible/wearable antennae and sensors, an investigation of its various properties was carried out. The substrate was first developed in compliance with the requirements, and then its anisotropy was investigated using an experimental bi-resonator approach. This material exhibited modest but discernible anisotropy, with values of ~6.2/25 % for the dielectric constant and loss tangent, respectively. Its anisotropic behavior was confirmed by a parallel dielectric constant (<i>ε<sub>par</sub></i>) ~2.717 and an evaluated perpendicular dielectric constant (<i>ε<sub>perp</sub></i>) ~2.570—<i>ε<sub>par</sub></i> > <i>ε<sub>perp</sub></i> by 5.7%. Temperature affected PDMS’s dielectric properties. Lastly, the simultaneous impact of bending and anisotropy of the flexible substrate PDMS on the resonance properties of planar structures was also addressed, and these had diametrically opposed effects. PDMS appears to be a good contender as a substrate for flexible/wearable antennae and sensors based on all experimental evaluations conducted for this research. |
| first_indexed | 2024-03-11T04:45:13Z |
| format | Article |
| id | doaj.art-f58423b3bd20466fad943ab3587b74ff |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T04:45:13Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-f58423b3bd20466fad943ab3587b74ff2023-11-17T20:28:36ZengMDPI AGMicromachines2072-666X2023-03-0114473510.3390/mi14040735Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and SensorsPraveen Kumar Sharma0Jae-Young Chung1Research Center for Electrical and Information Technology, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaDepartment of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaTo demonstrate that the silicone-based polymer polydimethylsiloxane (PDMS) is suitable as a substrate for flexible/wearable antennae and sensors, an investigation of its various properties was carried out. The substrate was first developed in compliance with the requirements, and then its anisotropy was investigated using an experimental bi-resonator approach. This material exhibited modest but discernible anisotropy, with values of ~6.2/25 % for the dielectric constant and loss tangent, respectively. Its anisotropic behavior was confirmed by a parallel dielectric constant (<i>ε<sub>par</sub></i>) ~2.717 and an evaluated perpendicular dielectric constant (<i>ε<sub>perp</sub></i>) ~2.570—<i>ε<sub>par</sub></i> > <i>ε<sub>perp</sub></i> by 5.7%. Temperature affected PDMS’s dielectric properties. Lastly, the simultaneous impact of bending and anisotropy of the flexible substrate PDMS on the resonance properties of planar structures was also addressed, and these had diametrically opposed effects. PDMS appears to be a good contender as a substrate for flexible/wearable antennae and sensors based on all experimental evaluations conducted for this research.https://www.mdpi.com/2072-666X/14/4/735anisotropybi-resonatorPDMSbendingtemperature dependence |
| spellingShingle | Praveen Kumar Sharma Jae-Young Chung Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors Micromachines anisotropy bi-resonator PDMS bending temperature dependence |
| title | Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors |
| title_full | Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors |
| title_fullStr | Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors |
| title_full_unstemmed | Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors |
| title_short | Evaluation of Polydimethylsiloxane (PDMS) as a Substrate for the Realization of Flexible/Wearable Antennas and Sensors |
| title_sort | evaluation of polydimethylsiloxane pdms as a substrate for the realization of flexible wearable antennas and sensors |
| topic | anisotropy bi-resonator PDMS bending temperature dependence |
| url | https://www.mdpi.com/2072-666X/14/4/735 |
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