Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix
Efforts are currently underway to improve the performance of small electric antennas and resonator-based antennas embedded in the civil infrastructure. One of the main limitations of these small antennas is that they have narrow bandwidths which limit their use when embedded in concrete. The present...
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sg-ntu-dr.10356-1624762022-10-31T00:39:17Z Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix Sum, Yee Loon Rheinheimer, Vanessa Soong, Boon Hee Paulo J. M., Monteiro School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Concrete Sensors Iron (III) Oxide Antenna Metaresonator Efforts are currently underway to improve the performance of small electric antennas and resonator-based antennas embedded in the civil infrastructure. One of the main limitations of these small antennas is that they have narrow bandwidths which limit their use when embedded in concrete. The present work shows that by changing the amount of iron (III) oxide microparticles in a cementitious matrix, not only does the impedance matching of the embedded array improve by as much as 20 dB, it also produces a lesser shift in resonant frequency (RF) than the original cementitious matrix alone. Further analysis of antenna transmission coefficient S21 values shows that adding 4% iron (III) oxide into cement paste improves the RF power transmission into the material compared to the control by as much as 10 dB. Given that iron (III) oxide microparticles are easily available as admixture pigments for coloring mortar or concrete, it is possible to fast track implementation of this application in new construction. National Research Foundation (NRF) Submitted/Accepted version This research was funded by the Republic of Singapore’s National Research Foundation through a grant to the Berkeley Education Alliance for Research in Singapore (BEARS) for the Singapore Berkeley Building Efficiency and Sustainability in the Tropics (SinBerBEST) Program. BEARS was established by the University of California, Berkeley as a center for intellectual excellence in research and education in Singapore. 2022-10-26T02:52:40Z 2022-10-26T02:52:40Z 2021 Journal Article Sum, Y. L., Rheinheimer, V., Soong, B. H. & Paulo J. M., M. (2021). Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix. Cement and Concrete Composites, 116, 103890-. https://dx.doi.org/10.1016/j.cemconcomp.2020.103890 0958-9465 https://hdl.handle.net/10356/162476 10.1016/j.cemconcomp.2020.103890 116 103890 en SinBerBEST Cement and Concrete Composites © 2020 Elsevier Ltd.. All rights reserved. This paper was published in Cement and Concrete Composites and is made available with permission of Elsevier Ltd. application/pdf |
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Engineering::Electrical and electronic engineering Concrete Sensors Iron (III) Oxide Antenna Metaresonator |
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Engineering::Electrical and electronic engineering Concrete Sensors Iron (III) Oxide Antenna Metaresonator Sum, Yee Loon Rheinheimer, Vanessa Soong, Boon Hee Paulo J. M., Monteiro Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
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Efforts are currently underway to improve the performance of small electric antennas and resonator-based antennas embedded in the civil infrastructure. One of the main limitations of these small antennas is that they have narrow bandwidths which limit their use when embedded in concrete. The present work shows that by changing the amount of iron (III) oxide microparticles in a cementitious matrix, not only does the impedance matching of the embedded array improve by as much as 20 dB, it also produces a lesser shift in resonant frequency (RF) than the original cementitious matrix alone. Further analysis of antenna transmission coefficient S21 values shows that adding 4% iron (III) oxide into cement paste improves the RF power transmission into the material compared to the control by as much as 10 dB. Given that iron (III) oxide microparticles are easily available as admixture pigments for coloring mortar or concrete, it is possible to fast track implementation of this application in new construction. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Sum, Yee Loon Rheinheimer, Vanessa Soong, Boon Hee Paulo J. M., Monteiro |
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Article |
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Sum, Yee Loon Rheinheimer, Vanessa Soong, Boon Hee Paulo J. M., Monteiro |
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Sum, Yee Loon |
title |
Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
title_short |
Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
title_full |
Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
title_fullStr |
Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
title_full_unstemmed |
Effect of iron (III) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
title_sort |
effect of iron (iii) oxide concentration on the performance of meta-resonators embedded in cementitious matrix |
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2022 |
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https://hdl.handle.net/10356/162476 |
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