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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Main Authors: Sum, Yee Loon, Rheinheimer, Vanessa, Soong, Boon Hee, Paulo J. M., Monteiro
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/162476
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Institution: Nanyang Technological University
Language: English
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spelling 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
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Concrete
Sensors
Iron (III) Oxide
Antenna
Metaresonator
spellingShingle 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
description 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.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Sum, Yee Loon
Rheinheimer, Vanessa
Soong, Boon Hee
Paulo J. M., Monteiro
format Article
author Sum, Yee Loon
Rheinheimer, Vanessa
Soong, Boon Hee
Paulo J. M., Monteiro
author_sort 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
publishDate 2022
url https://hdl.handle.net/10356/162476
_version_ 1749179250466881536